Intel Core i5-3450S

Intel Core i5-3450S

Intel Core i5-3450S: Obsolete Warrior or Budget Option in 2025?

Architecture, Performance, and Considerations for PC Build Choices


1. Key Specifications: What Does Ivy Bridge Hide?

The Intel Core i5-3450S processor, released in 2012, belongs to the Ivy Bridge generation. It's a 22nm chip with 4 cores and 4 threads, a base frequency of 2.8 GHz, and a turbo boost of up to 3.5 GHz. With a TDP of 65W, it stands out as one of the most energy-efficient options of its time.

Key Features:

- No support for Hyper-Threading, which limits multitasking capabilities.

- Integrated Intel HD Graphics 2500 — suitable only for basic tasks (video playback, office applications).

- Turbo Boost 2.0 and Virtualization technologies improve responsiveness and virtualization.

Performance in 2025:

According to Geekbench 6, the i5-3450S scores 597 points in single-threaded tests and 1715 points in multi-threaded tests. In comparison, the modern budget Intel Core i3-12100 (2023) shows ~1800/6000 points. This indicates that the i5-3450S can handle office tasks and light applications but struggles with modern games or resource-intensive programs.


2. Compatible Motherboards: How to Make the Right Choice?

Socket: LGA1155 — an outdated standard, and new boards have not been produced since 2013. In 2025, finding a new motherboard is impossible, but you can find models on the secondary market:

- ASUS P8H77-V (used price: $30–50).

- Gigabyte GA-B75M-D3H (used price: $25–40).

Chipsets:

- H61, B75, H77, Z77. Overclocking (not possible with i5-3450S) requires Z77. The best choice for stability is B75 or H77 with support for SATA III and USB 3.0.

Selection Tips:

- Check the condition of capacitors on the used board — older models often suffer from bulging.

- Ensure that the BIOS is updated to the latest version for compatibility with NVMe SSDs (via PCIe adapter).


3. Supported Memory: DDR3 as a Limitation

The i5-3450S works only with DDR3 (up to 1600 MHz). Capacity is up to 32 GB (4 slots × 8 GB).

Issues in 2025:

- DDR3 is outdated: new modules are no longer produced, and prices for used ones start from $10 for 8 GB.

- No support for DDR4/DDR5: upgrading the system without replacing the processor and motherboard is impossible.

Tip: Use dual-channel mode (2 × 8 GB) to enhance performance by 10–15%.


4. Power Supply: How Many Watts Do You Need?

With a TDP of 65W and no overclocking, a PSU rated 400–450W is sufficient. However, consider other components:

- Dedicated graphics card (e.g., GTX 1650): +75–100W.

- SSD/HDD, cooling fans: +50W.

Recommendations:

- For a system with a GTX 1650, choose a PSU rated at 500W (e.g., Corsair CX550 — $60).

- For a PC without a graphics card, a low-powered PSU is enough (Be Quiet! SFX Power 3 400W — $55).


5. Pros and Cons: Is It Worth Getting in 2025?

Pros:

- Low power consumption (suitable for media centers).

- Adequate performance for office work and web surfing.

- Affordability (used processor — $15–25).

Cons:

- Outdated architecture: lacks support for AVX2, PCIe 3.0, USB 3.1.

- Limited upgrade potential: Socket LGA1155 is a dead-end platform.

- Weak iGPU: a discrete graphics card is necessary for gaming.


6. Use Cases: Where Is It Useful?

- Office Tasks: Word, Excel, browsers with 10+ tabs — the processor can handle this, but there may be delays with heavy PDFs.

- Multimedia: Streaming 1080p video, basic editing in Shotcut — rendering will take 2–3 times longer compared to an i3-12100.

- Gaming: Only older titles (CS:GO, GTA V) or indie games at low settings. With a GTX 1650 — 30–40 FPS in Fortnite (720p).

Real Experience: A Reddit user built a PC with an i5-3450S and GTX 1050 Ti for $150, playing Skyrim and Rocket League without issues.


7. Comparison with Competitors

- AMD FX-8350 (2012): 8 cores, but high TDP (125W) and weak single-thread performance (Geekbench 6 Single: 420).

- Intel Core i5-4570 (2013): A newer Haswell architecture, 15% faster, but more expensive (used — $30–40).

- Intel Core i3-10100 (2020): 4 cores/8 threads, supports DDR4. New — $80, but requires LGA1200 motherboard ($70).

Conclusion: The i5-3450S only wins on price but loses on performance and future potential.


8. Practical Tips for Building

1. Look for combos on the secondary market: Often, you can find a "motherboard + processor + RAM" bundle for $50–70.

2. Always install an SSD: A SATA SSD (e.g., Kingston A400 240GB — $25) will speed up the system.

3. Upgrade cooling: The stock cooler is noisy. Replace it with a DeepCool GAMMAXX 400 ($20).

4. Don’t skimp on the PSU: Cheap units can damage components.


9. Final Conclusion: Who Is the i5-3450S For?

This processor should only be considered in two instances:

1. Ultra-Budget Build: If you need a PC for document editing or browsing for $100–150.

2. Upgrading an Old Computer: Replacing a weaker CPU (e.g., Pentium G2020) without changing the platform.

Alternative: For a similar $150–200, you can build a system based on AMD Ryzen 3 3200G (used) with DDR4 support and modern technologies.


Conclusion: The Intel Core i5-3450S in 2025 is a choice for enthusiasts willing to deal with limitations for minimal investment. For most users, it’s wiser to invest in more modern platforms.

Basic

Label Name
Intel
Platform
Desktop
Launch Date
April 2012
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.
i5-3450S
Code Name
Ivi Bridge

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.
4
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.
3.50 GHz
Intel Turbo Boost Technology 2.0 Frequency
3.50 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.
No
CPU Socket
?
The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.
FCLGA1155
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.
22 nm
TDP
65 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
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.
DDR3 1333/1600
Max Memory Size
?
Max memory size refers to the maximum memory capacity supported by the processor.
32 GB
Memory Channels
?
The number of memory channels refers to the bandwidth operation for real world application.
2
Bus Speed
5 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).
25.6 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.
No

GPU Specifications

GPU Name
Intel® HD Graphics 2500
Graphics Base Frequency
?
Graphics Base frequency refers to the rated/guaranteed graphics render clock frequency in MHz.
650 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
Number of Displays Supported
3

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.
No
Instruction Set Extensions
Intel® SSE4.1 | Intel® SSE4.2 | Intel® AVX
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.
6 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 InTru 3D Technology
Yes
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
597
Geekbench 6
Multi Core Score
1715
Geekbench 5
Single Core Score
649
Geekbench 5
Multi Core Score
2116
Passmark CPU
Single Core Score
1873
Passmark CPU
Multi Core Score
4375

Compared to Other CPU

Geekbench 6 Single Core
671 +12.4%
637 +6.7%
559 -6.4%
524 -12.2%
Geekbench 6 Multi Core
2040 +19%
1859 +8.4%
1540 -10.2%
1404 -18.1%
Geekbench 5 Single Core
690 +6.3%
672 +3.5%
626 -3.5%
601 -7.4%
Geekbench 5 Multi Core
2434 +15%
2284 +7.9%
1976 -6.6%
1858 -12.2%
Passmark CPU Single Core
1904 +1.7%
1822 -2.7%
1799 -4%
Passmark CPU Multi Core
4835 +10.5%
4555 +4.1%
4121 -5.8%
3894 -11%