Intel Core i7-6700T
Intel Core i7-6700T: An Energy-Efficient Chip from the Skylake Era. Review and Practical Analysis
The Intel Core i7-6700T processor is a specific and interesting example from the mid-2010s. It is not a flagship for gamers, but rather a well-balanced solution designed for systems where performance, thermal output, and power consumption take priority. In this article, we will thoroughly analyze its features, compatibility, and relevance today.
1. Architecture and Key Features
The Intel Core i7-6700T is based on the Skylake microarchitecture, which debuted in 2015 and was manufactured using a 14-nanometer process technology. This node marked a significant improvement over the previous Broadwell generation, providing enhancements in instructions per clock (IPC) performance and energy efficiency.
- Cores and Threads: The chip contains 4 physical cores and, thanks to Hyper-Threading technology, can handle 8 logical threads. This configuration was standard for high-performance desktop solutions of its time.
- Clock Speeds: The processor's base frequency is 2.80 GHz. Under load on one or more cores, Intel Turbo Boost 2.0 activates, boosting the frequency up to 3.60 GHz. The relatively low base frequency serves as a direct compensation for maintaining its TDP.
- TDP and Energy Efficiency: A key feature is its thermal design power (TDP) of just 35 watts. This distinguishes the processor in a separate line of energy-efficient models (the suffix "T") compared to the standard i7-6700 (TDP 65 watts) and i7-6700K (TDP 91 watts). The chip is designed for compact cases, systems with passive or low-profile cooling, and media centers.
- Cache Memory: The third-level cache (L3) size is 8 MB, which is typical for quad-core Core i7 processors of that period.
- Integrated Graphics: The processor features an integrated Intel HD Graphics 530 controller with a base frequency of 350 MHz and a maximum dynamic frequency of up to 1.10 GHz. The graphics support DirectX 12, OpenGL 4.6, and image output. The maximum resolution via DisplayPort or eDP is 4096x2304 at 60 Hz. Through HDMI 1.4, the maximum resolution is 4096x2304 at 24 Hz.
- Performance: According to provided data, in synthetic tests, the chip shows the following results:
- Geekbench 5: 960 (single-core) / 3399 (multi-core).
- Geekbench 6: 1185 (single-core) / 3613 (multi-core).
- PassMark: 2079 (single-core) / 7255 (multi-core).
These figures help objectively assess its computing power compared to modern chips.
2. Compatible Motherboards
The processor utilizes the LGA 1151 (first revision) socket. This is critically important, as later Intel released a physically compatible yet logically incompatible second revision of this socket for Coffee Lake processors (8th and 9th generations).
Supported chipsets:
- Intel 100 Series: H110, B150, Q150, H170, Q170, Z170.
- Intel 200 Series: B250, Q250, H270, Q270, Z270.
Selection Features:
- Z170 and Z270 chipsets are top solutions that support overclocking for "K" indexed processors. However, for the i7-6700T, overclocking is locked, so their key advantage is not utilized. However, these boards often feature better power delivery systems, more SATA and USB ports, and support for faster memory (when overclocked).
- H170/B150 and H270/B250 chipsets offer an optimal choice. They provide all the necessary functionality for stable processor operation. B150/B250 are usually more budget-friendly and have slightly fewer PCIe lanes.
- H110 chipset is the most budget-friendly option. Often has only 2 memory slots, fewer ports, and may not support memory overclocking beyond base frequencies. Suitable for maximum budget builds.
- Important: For guaranteed compatibility with the i7-6700T (Skylake), it is best to look for motherboards released in 2015-2016. A 200 series chipset board may require a BIOS update to work correctly with 6th generation processors if it was originally intended for Kaby Lake (7th generation).
3. Supported RAM
The Intel Core i7-6700T has a dual-channel memory controller and officially supports two types of memory:
- DDR4: Frequencies of DDR4-1866 MHz and DDR4-2133 MHz (JEDEC standard). On compatible motherboards (Z170, Z270, B250/H270), many modules with higher frequencies (2400, 2666 MHz) may work, but likely at 2133 MHz or with XMP profile activation (Intel’s memory overclocking technology).
- DDR3L: Low-voltage memory DDR3L-1333 and DDR3L-1600 MHz with an operating voltage of 1.35 V. It is crucial to use DDR3L, not standard DDR3 (1.5 V), as the higher voltage may damage the memory controller in the processor over time.
Maximum memory capacity is 64 GB, and bandwidth reaches 34.1 GB/s. DDR5 or newer memory standards are not supported by this processor.
4. Power Supply Recommendations
The i7-6700T processor has a very modest appetite - just 35 watts. Even considering short-term power spikes (PL2), its consumption rarely exceeds 50-60 watts.
When choosing a power supply, base it on the other system components:
- System with integrated graphics (HD Graphics 530): For an office PC or media center without a discrete graphics card, a quality power supply with a capacity of 300-400 watts will suffice. This will provide adequate headroom for drives, the motherboard, and peripherals.
- System with a discrete graphics card: This depends on the chosen graphics card. For example, a pairing with an energy-efficient model like the NVIDIA GTX 1650 or similar from AMD requires a PSU of 400-450 watts. For more powerful cards like the GTX 1660 Super or RTX 3050, a supply of 500-550 watts is recommended.
- General Rule: The focus should be on quality and stability of the +12V lines rather than maximum wattage. Choose a PSU from reputable manufacturers (Seasonic, Corsair, be quiet!, Super Flower) with an 80 Plus Bronze certification or higher.
5. Pros and Cons of Intel Core i7-6700T
Pros:
- Outstanding energy efficiency: TDP of 35 watts allows for silent, compact systems with minimal heat.
- Four cores and eight threads: Sufficient for multitasking, most office applications, and light gaming.
- Current integrated graphics: HD Graphics 530 with 4K output support and partial hardware video decoding (HEVC/H.265) is well-suited for media centers.
- Support for contemporary (at the time of release) DDR4 memory.
Cons:
- Outdated platform: LGA 1151 v1 socket and 100/200 series chipsets offer no upgrade path to newer processors.
- Lack of PCIe 4.0/5.0 support: Only PCIe 3.0 is available with 16 lanes from the processor (supporting configurations up to 1x16, 2x8, 1x8+2x4). This could become a bottleneck for modern high-speed NVMe drives.
- Limited performance in 2024+: Compared to modern 6, 8, and more core processors, especially from AMD, its performance in multi-threaded tasks appears weak.
- Absence of support for some modern instructions and technologies: For example, there is no built-in support for AVX-512 like in newer Intel CPUs.
6. Use Cases
Office and Everyday Work: An ideal choice. The processor easily handles web browsing, office suites, email clients, and video conferencing. Low thermal output contributes to quiet operation.
Media Center (HTPC): One of the best applications. Energy efficiency, 4K output support, and sufficient performance for streaming services (Netflix, YouTube) and local playback of high-resolution video.
Light and Older Gaming: Paired with an entry- or mid-range discrete graphics card (e.g., GTX 1050 Ti, GTX 1650, RX 570), the processor can ensure comfortable frame rates in games from 2015-2018 and some less demanding modern projects at medium settings. In CPU-dependent games, it will significantly limit FPS.
Home Server or NAS (Network Attached Storage): Low power consumption at idle and 8 threads for virtualization or working with network drives make it a good candidate for these tasks.
7. Comparison with Closest Competitors
Within Intel's lineup of that time:
- vs. Core i7-6700 (65W): The standard counterpart has a higher base frequency (3.4 GHz) and, consequently, slightly better performance (5-10%) under sustained load but requires more serious cooling.
- vs. Core i7-6700K (91W): With an unlocked multiplier, even higher frequencies (4.0 GHz in turbo), and overclocking potential. This is the choice for gamers and enthusiasts but comes with a completely different level of thermal output.
Comparison with modern budget solutions at the time of discontinuation:
- vs. AMD Ryzen 5 2400G (2018): A four-core/eight-thread APU from AMD based on the Zen (14 nm) architecture. It offers similar CPU performance but significantly more powerful integrated graphics with Vega 11. It was a direct competitor for builds without a discrete graphics card.
Today, the i7-6700T can be compared with modern budget processors like the Intel Core i3-12100 (4 cores/8 threads, Alder Lake). The latter demonstrates much higher single-core performance (60-80% in tests) and operates on a modern platform with PCIe 5.0 and DDR5 support while maintaining similar power consumption.
8. Practical System Build Advice
- Motherboard: For reliable operation, choose a board with a B250 or H270 chipset. This ensures stability and minimizes compatibility issues out of the box. Check the CPU Support List on the motherboard manufacturer's site.
- Memory: The optimal choice is two DDR4-2133 or DDR4-2400 MHz modules, each 8 GB (totaling 16 GB) for dual-channel operation. This is sufficient for most tasks. If the budget is tight, starting with 2x4 GB is acceptable.
- Cooling: Even the simplest tower or low-profile cooler will be adequate for this processor. Consider models like Deepcool GAMMAXX 200T or similar from Arctic or Cooler Master. In compact cases, coolers with heat pipes and a small fan will perform well.
- Storage: To unlock the system's potential and avoid bottlenecking, make sure to install an SSD as the system disk. Both SATA and NVMe SSDs work (the latter will operate at PCIe 3.0 x4 speed).
- BIOS Update: If you’re buying a new (at the time) motherboard for this processor, ensure it has the latest BIOS/UEFI version installed for compatibility and stability.
9. Final Conclusion: Who is the i7-6700T Suitable for in 2024?
The Intel Core i7-6700T is a very specific processor, and its relevance today is niche.
It may be a reasonable choice in the following cases:
- Upgrading an old system on the LGA 1151 (v1) socket, where a less powerful processor (e.g., Pentium or Core i3/i5 from the 6th/7th generation) is installed, and there’s a desire to gain 8 threads without replacing the motherboard and memory.
- Building a compact, quiet, and cool media center (HTPC) for use in the living room, where minimal noise and 4K support are important.
- Creating an energy-efficient office PC or terminal with surplus performance for multitasking.
Avoid considering the i7-6700T for:
- Building a new gaming system from scratch. Its performance is already insufficient for comfortable play in modern projects, and the platform has no future.
- Running resource-intensive professional applications (rendering, compilation, complex modeling).
In summary, the Intel Core i7-6700T is a well-engineered product of its time, which can still find its place in certain scenarios thanks to its unique combination of 4 cores/8 threads and ultra-low power consumption. However, for most users building a new PC, it would be more logical to consider modern, even budget-level platforms.
Basic
Label Name
Intel
Platform
Desktop
Launch Date
September 2015
Model Name
?
The Intel processor number is just one of several factors - along with processor brand, system configurations, and system-level benchmarks - to be considered when choosing the right processor for your computing needs.
i7-6700T
Code Name
SkyLake
CPU Specifications
Total Cores
?
Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).
4
Total Threads
?
Where applicable, Intel® Hyper-Threading Technology is only available on Performance-cores.
8
Basic Frequency
2.80 GHz
Max Turbo Frequency
?
Max Turbo Frequency is the maximum single-core frequency at which the processor is capable of operating using Intel® Turbo Boost Technology and, if present, Intel® Turbo Boost Max Technology 3.0 and Intel® Thermal Velocity Boost. Frequency is typically measured in gigahertz (GHz), or billion cycles per second.
3.60 GHz
Intel Hyper-Threading Technology
?
Intel® Hyper-Threading Technology (Intel® HT Technology) delivers two processing threads per physical core. Highly threaded applications can get more work done in parallel, completing tasks sooner.
Yes
Intel Turbo Boost Technology
?
Intel® Turbo Boost Technology dynamically increases the processor's frequency as needed by taking advantage of thermal and power headroom to give you a burst of speed when you need it, and increased energy efficiency when you don’t.
2.0
Intel Turbo Boost Technology 2.0 Frequency
3.60 GHz
L3 Cache
8 MB
CPU Socket
?
The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.
FCLGA1151
Technology
?
Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.
14 nm
TDP
35 W
PCI Express Version
?
PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.
3.0
Number of PCI Express Lanes
?
A PCI Express (PCIe) lane consists of two differential signaling pairs, one for receiving data, one for transmitting data, and is the basic unit of the PCIe bus. Max # of PCI Express Lanes is the total number of supported lanes.
16
Instruction Set
?
The instruction set is a hard program stored inside the CPU that guides and optimizes CPU operations. With these instruction sets, the CPU can run more efficiently. There are many manufacturers that design CPUs, which results in different instruction sets, such as the 8086 instruction set for the Intel camp and the RISC instruction set for the ARM camp. x86, ARM v8, and MIPS are all codes for instruction sets. Instruction sets can be extended; for example, x86 added 64-bit support to create x86-64. Manufacturers developing CPUs that are compatible with a certain instruction set need authorization from the instruction set patent holder. A typical example is Intel authorizing AMD, enabling the latter to develop CPUs compatible with the x86 instruction set.
64-bit
Intel 64
?
Intel® 64 architecture delivers 64-bit computing on server, workstation, desktop and mobile platforms when combined with supporting software.¹ Intel 64 architecture improves performance by allowing systems to address more than 4 GB of both virtual and physical memory.
Yes
PCI Express Configurations
?
PCI Express (PCIe) Configurations describe the available PCIe lane configurations that can be used to link to PCIe devices.
Up to 1x16 | 2x8 | 1x8+2x4
Memory Specifications
Memory Type
?
Intel® processors come in four different types: Single Channel, Dual Channel, Triple Channel, and Flex Mode. Maximum supported memory speed may be lower when populating multiple DIMMs per channel on products that support multiple memory channels.
DDR4-1866/2133 | DDR3L-1333/1600 @ 1.35V
Max Memory Size
?
Max memory size refers to the maximum memory capacity supported by the processor.
64 GB
Memory Channels
?
The number of memory channels refers to the bandwidth operation for real world application.
2
Max Memory Bandwidth
?
Max Memory bandwidth is the maximum rate at which data can be read from or stored into a semiconductor memory by the processor (in GB/s).
34.1 GB/s
Bus Speed
8 GT/s
ECC Memory Supported
?
ECC Memory Supported indicates processor support for Error-Correcting Code memory. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. Note that ECC memory support requires both processor and chipset support.
No
GPU Specifications
Integrated Graphics Model
?
An integrated GPU refers to the graphics core that is integrated into the CPU processor. Leveraging the processor's powerful computational capabilities and intelligent power efficiency management, it delivers outstanding graphics performance and a smooth application experience at a lower power consumption.
Intel® HD Graphics 530
Graphics Frequency
?
Graphics max dynamic frequency refers to the maximum opportunistic graphics render clock frequency (in MHz) that can be supported using Intel® HD Graphics with Dynamic Frequency feature.
1.10 GHz
Graphics Base Frequency
?
Graphics Base frequency refers to the rated/guaranteed graphics render clock frequency in MHz.
350 MHz
4K Support
Yes | at 60Hz
Graphics Video Max Memory
64 GB
DirectX Support
?
DirectX* Support indicates support for a specific version of Microsoft’s collection of APIs (Application Programming Interfaces) for handling multimedia compute tasks.
12
Max Resolution (HDMI)
?
Max Resolution (HDMI) is the maximum resolution supported by the processor via the HDMI interface (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your system.
4096x2304@24Hz
Max Resolution (DP)
?
Max Resolution (DP) is the maximum resolution supported by the processor via the DP interface (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your system.
4096x2304@60Hz
Max Resolution (eDP - Integrated Flat Panel)
?
Max Resolution (Integrated Flat Panel) is the maximum resolution supported by the processor for a device with an integrated flat panel (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your device.
4096x2304@60Hz
Number of Displays Supported
3
Graphics Output
?
Graphics Output defines the interfaces available to communicate with display devices.
eDP/DP/HDMI/DVI
Miscellaneous
Intel Virtualization Technology (VT-x)
?
Intel® Virtualization Technology (VT-x) allows one hardware platform to function as multiple “virtual” platforms. It offers improved manageability by limiting downtime and maintaining productivity by isolating computing activities into separate partitions.
Yes
Intel Virtualization Technology for Directed I/O (VT-d)
?
Intel® Virtualization Technology for Directed I/O (VT-d) continues from the existing support for IA-32 (VT-x) and Itanium® processor (VT-i) virtualization adding new support for I/O-device virtualization. Intel VT-d can help end users improve security and reliability of the systems and also improve performance of I/O devices in virtualized environments.
Yes
Intel Standard Manageability (ISM)
?
Intel® Standard Manageability is the manageability solution for Intel vPro® Essentials platforms and is a subset of Intel® AMT with out-of-band management over Ethernet and Wi-Fi, but no KVM or new life cycle management features.
Intel® SSE4.1 | Intel® SSE4.2 | Intel® AVX2
Enhanced Intel SpeedStep Technology
?
Enhanced Intel SpeedStep® Technology is an advanced means of enabling high performance while meeting the power-conservation needs of mobile systems. Conventional Intel SpeedStep® Technology switches both voltage and frequency in tandem between high and low levels in response to processor load. Enhanced Intel SpeedStep® Technology builds upon that architecture using design strategies such as Separation between Voltage and Frequency Changes, and Clock Partitioning and Recovery.
Yes
Execute Disable Bit
?
Execute Disable Bit is a hardware-based security feature that can reduce exposure to viruses and malicious-code attacks and prevent harmful software from executing and propagating on the server or network.
Yes
Cache
?
CPU Cache is an area of fast memory located on the processor. Intel® Smart Cache refers to the architecture that allows all cores to dynamically share access to the last level cache.
8 MB Intel® Smart Cache
Intel AES New Instructions
?
Intel® AES New Instructions (Intel® AES-NI) are a set of instructions that enable fast and secure data encryption and decryption. AES-NI are valuable for a wide range of cryptographic applications, for example: applications that perform bulk encryption/decryption, authentication, random number generation, and authenticated encryption.
Yes
Intel Boot Guard
?
Intel® Device Protection Technology with Boot Guard helps protect the system’s pre-OS environment from viruses and malicious software attacks.
Yes
Intel Clear Video HD Technology
?
Intel® Clear Video HD Technology, like its predecessor, Intel® Clear Video Technology, is a suite of image decode and processing technologies built into the integrated processor graphics that improve video playback, delivering cleaner, sharper images, more natural, accurate, and vivid colors, and a clear and stable video picture. Intel® Clear Video HD Technology adds video quality enhancements for richer color and more realistic skin tones.
Yes
Intel Clear Video Technology
Yes
Intel VT-x with Extended Page Tables (EPT)
?
Intel® VT-x with Extended Page Tables (EPT), also known as Second Level Address Translation (SLAT), provides acceleration for memory intensive virtualized applications. Extended Page Tables in Intel® Virtualization Technology platforms reduces the memory and power overhead costs and increases battery life through hardware optimization of page table management.
Yes
Intel InTru 3D Technology
Yes
Intel OS Guard
Yes
OpenGL Support
?
OpenGL (Open Graphics Library) is a cross-language, multi-platform API (Application Programming Interface) for rendering 2D and 3D vector graphics.
4.5
Intel Quick Sync Video
?
Intel® Quick Sync Video delivers fast conversion of video for portable media players, online sharing, and video editing and authoring.
Yes
Benchmarks
Geekbench 6
Single Core
Score
1185
Geekbench 6
Multi Core
Score
3613
Geekbench 5
Single Core
Score
960
Geekbench 5
Multi Core
Score
3399
Passmark CPU
Single Core
Score
2079
Passmark CPU
Multi Core
Score
7255
Compared to Other CPU
Geekbench 6 Single Core
Geekbench 6 Multi Core
Geekbench 5 Single Core
Geekbench 5 Multi Core
Passmark CPU Single Core
Passmark CPU Multi Core
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