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Intel Xeon E3-1575M v5

Intel Xeon E3-1575M v5: A Mobile Workstation in a Compact Case

April 2025

Architecture and Process Technology: Skylake in Detail

The Intel Xeon E3-1575M v5 processor, released in 2016, is based on the Skylake microarchitecture and a 14nm process technology. It is one of the few mobile Xeon processors aimed at professional laptops.

- Cores and Threads: 4 cores and 8 threads thanks to Hyper-Threading. Base frequency is 3.0 GHz, with a maximum turbo frequency of 3.9 GHz.

- Cache: 8 MB of L3 cache, which was standard for high-performance CPUs in 2016.

- Integrated Graphics: Intel Iris Pro Graphics P580 with 72 Execution Units (EUs) and 128 MB of eDRAM. This solution significantly outperformed standard Intel HD graphics, approaching entry-level discrete GPUs.

The Skylake architecture brought improvements in IPC (Instructions Per Cycle) of 5–10% compared to the previous Broadwell generation. This is especially noticeable in tasks sensitive to single-core performance, such as CAD modeling or code compilation.

Power Consumption and TDP: A Balance of Power and Efficiency

The processor's TDP is 45W, placing it in the category of energy-efficient solutions for workstations. In comparison, modern mobile Intel Core 12th generation CPUs (2023–2025) with similar TDP offer more cores, but the Xeon E3-1575M v5 remains relevant due to:

- Optimized Thermal Profile: Even under load, temperatures rarely exceed 85°C in well-designed systems.

- Support for ECC Memory: Critical for tasks where error-free data processing is important (e.g., engineering calculations).

However, by 2025, 45W is no longer the dream. Modern processors, such as the AMD Ryzen 7 7840U (TDP 28W), demonstrate comparable performance with lower power consumption.

Performance: From Office to Rendering

Office Tasks: By 2025, the processor handles multitasking (20+ tabs in Chrome, Excel with macros, Zoom) without delays. The Geekbench 6 Single Core score (1326) is close to that of the Intel Core i5-1135G7 (2020), which is sufficient for most users.

Multimedia:

- Converting 4K video in HandBrake takes about 12 minutes (for comparison, Ryzen 5 7600X takes about 7 minutes).

- Adobe Photoshop 2025 runs smoothly, but AI-based filters (e.g., Neural Filters) require patience.

Gaming: The Iris Pro P580 in 2025 is the minimum for comfortable gaming. Examples (Low/Medium settings, 1080p):

- CS2: 60–70 FPS.

- GTA V: 45–50 FPS.

- Cyberpunk 2077: 25–30 FPS (only with FSR Performance Mode).

Turbo Boost: In turbo mode, the frequency reaches 3.9 GHz, but only on 1–2 cores. Under full load of all cores, it is 3.5 GHz.

Use Cases: Who Would Benefit from the Xeon E3-1575M v5 in 2025?

- Engineers and Designers: ECC memory support and stability in CAD applications (SolidWorks, AutoCAD).

- Developers: Local project builds and virtualization (Docker, VMware).

- Freelancers: Photo/video editing on a budget workstation.

For gaming or AI tasks, the CPU is outdated, but as a foundation for a reliable "workhorse," it remains relevant.

Battery Life: How Long Will the Laptop Last?

The average battery life of a laptop with this processor is 4–6 hours under mixed load (Wi-Fi, office tasks, 50% brightness). Energy-saving technologies include:

- Intel SpeedStep: Dynamic frequency scaling.

- C-states: Disabling unused cores.

Tip: Choose models with a battery capacity of at least 80 Wh (e.g., Dell Precision 3510) — they can provide up to 8 hours in reading mode.

Comparison with Competitors

- AMD Ryzen 7 PRO 6850U (2022): 8 cores/16 threads, TDP 28W, Radeon 680M. Better in multithreaded tasks (+30% in Cinebench R23), but lacks ECC memory.

- Apple M2 (2022): 30% faster in Single-Core, 2x more energy-efficient, but the macOS ecosystem may not suit everyone.

- Intel Core i7-11850H (2021): 8 cores/16 threads, higher performance in gaming, but TDP 45W and temperatures up to 95°C.

Prices: Laptops with the Xeon E3-1575M v5 in 2025 are rare, with second-hand market prices ranging from $300 to $500. New alternatives (e.g., Dell Precision 3581 with Intel Core i7-1360P) start from $1500.

Pros and Cons

Strengths:

- Support for ECC memory.

- Stable performance under prolonged load.

- Good integrated graphics for its time.

Weaknesses:

- Only 4 cores compared to 8–12 in modern CPUs.

- High power consumption for the performance level of 2025.

- Lack of support for PCIe 4.0/5.0.

Laptop Selection Recommendations

- Type of Device: Workstation (Dell Precision, HP ZBook) or premium business laptop (Lenovo ThinkPad P50).

- Key Factors to Consider:

- Cooling system (at least two fans).

- Upgrade potential (memory up to 64GB, 2 SSD slots).

- Display covering 100% sRGB for color-critical tasks.

Example in 2025: Used Dell Precision 3510 with Xeon E3-1575M v5, 32 GB RAM, 1 TB SSD — around $450.

Final Conclusion

The Intel Xeon E3-1575M v5 in 2025 is a choice for those seeking a budget workstation with ECC memory support and proven reliability. It is suitable for:

- Engineers working with CAD on the go.

- IT professionals who prioritize stability over record-breaking speed.

- Technical university students learning professional software.

Key benefits include a balance of price and specialized features absent in consumer CPUs. However, for modern gaming or AI tasks, it is advisable to consider newer solutions.

P.S. If your budget is up to $1000, consider laptops with the Ryzen 7 PRO 7840U — they offer a better performance-to-battery life ratio.

Basic

Label Name

Intel

Platform

Mobile

Launch Date

January 2016

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.

E3-1575MV5

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).

Total Threads

Where applicable, Intel® Hyper-Threading Technology is only available on Performance-cores.

Basic Frequency

3.00 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.

3.90 GHz

Intel Turbo Boost Technology 2.0 Frequency

3.90 GHz

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 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

L3 Cache

8 MB

CPU Socket

The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.

FCBGA1440

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

45 W

Max. Operating Temperature

Junction Temperature is the maximum temperature allowed at the processor die.

100°C

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.

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

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

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.

DDR4-2133 | LPDDR3-1866 | DDR3L-1600

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.

Bus Speed

8 GT/s

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

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.

Yes

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® Iris® Pro Graphics P580

Graphics Base Frequency

Graphics Base frequency refers to the rated/guaranteed graphics render clock frequency in MHz.

350 MHz

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 Video Max Memory

64 GB

4K Support

Yes | at 60Hz

DirectX Support

DirectX* Support indicates support for a specific version of Microsoft’s collection of APIs (Application Programming Interfaces) for handling multimedia compute tasks.

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

Number of Displays Supported

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 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 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 Flex Memory Access

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.

4.4

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

1326

Geekbench 6

Multi Core Score

4532

Geekbench 5

Single Core Score

923

Geekbench 5

Multi Core Score

3601

Passmark CPU

Single Core Score

2204

Passmark CPU

Multi Core Score

7928

Compared to Other CPU

Geekbench 6 Single Core

Xeon D-1735TR

1408 +6.2%

Core i9-9920X X-series

1368 +3.2%

Xeon E3-1575M v5

1326

Xeon E3-1285L v4

1283 -3.2%

Core i7-5960X

1244 -6.2%

Geekbench 6 Multi Core

Core i5-11500T

5098 +12.5%

Xeon E-2174G

4825 +6.5%

Xeon E3-1575M v5

4532

Core i7-8709G

4227 -6.7%

Xeon E3-1280 v3

4019 -11.3%

Geekbench 5 Single Core

Xeon E3-1578L v5

960 +4%

Ryzen 5 1600

937 +1.5%

Xeon E3-1575M v5

923

Xeon Platinum 8260L

906 -1.8%

Xeon E5-1660 v4

889 -3.7%

Geekbench 5 Multi Core

Ryzen 5 3400G

3901 +8.3%

Ryzen 3 5400U

3747 +4.1%

Xeon E3-1575M v5

3601

Xeon E3-1245 v5

3459 -3.9%

Core i3-9100

3346 -7.1%

Passmark CPU Single Core

Xeon Gold 6248R

2261 +2.6%

Core i7-8705G

2236 +1.5%

Xeon E3-1575M v5

2204

Xeon E5-2667

2178 -1.2%

Athlon Gold 7220U

2148 -2.5%

Passmark CPU Multi Core

Core i3-10105

8546 +7.8%

Xeon E5-2665

8248 +4%

Xeon E3-1575M v5

7928

Ryzen 5 PRO 2400GE with Radeon Vega 11 Graphics

7581 -4.4%

Xeon E5-1620

7377 -7%