INTEL

Intel Core i5-655K

Intel processor specifications and benchmark scores

2
Cores
4
Threads
3.47
GHz Boost
73W
TDP
🔓Unlocked 🖥️Integrated GPU

Intel Core i5-655K Specifications

⚙️

Core i5-655K Core Configuration

Processing cores and threading

The Intel Core i5-655K features 2 physical cores and 4 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
2
Threads
4
SMP CPUs
1
⏱️

i5-655K Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i5-655K benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Core i5-655K by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.2 GHz
Boost Clock
3.47 GHz
Multiplier
24x 🔓
💾

Intel's Core i5-655K Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i5-655K processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Core i5-655K's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
256 KB (per core)
L3 Cache
4 MB (shared)
🏗️

Westmere Architecture & Process

Manufacturing and design details

The Intel Core i5-655K is built on Intel's 32 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in i5-655K incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Westmere
Codename
Clarkdale
Process Node
32 nm
Foundry
Intel
Transistors
382 million
Die Size
81 mm²
Generation
Core i5 (Clarkdale)
🔢

Westmere Instruction Set Features

Supported CPU instructions and extensions

The Core i5-655K by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.1
SSE4.2
AES-NI
Intel 64
VT-x
🔌

i5-655K Power & Thermal

TDP and power specifications

The Intel Core i5-655K has a TDP (Thermal Design Power) of 73W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
73W
🔧

Intel Socket 1156 Platform & Socket

Compatibility information

The Core i5-655K uses the Intel Socket 1156 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel Socket 1156
Chipsets
H55, H57, P55
PCIe
Gen 2, 16 Lanes(CPU only)
Package
FC-LGA10
DDR5

Intel Socket 1156 Memory Support

RAM compatibility and speeds

Memory support specifications for the i5-655K define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Core i5-655K determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR3
Memory Bus
Dual-channel
Memory Bandwidth
21.3 GB/s
🖥️

Intel's Core i5-655K Integrated Graphics

Built-in GPU specifications

The Intel Core i5-655K includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the i5-655K provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.

iGPU
HD Graphics
Graphics Model
HD Graphics
📦

Core i5-655K Product Information

Release and pricing details

The Intel Core i5-655K is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Core i5-655K by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
May 2010
Launch Price
$216
Market
Desktop
Status
End-of-life
Part Number
SLBXL

Core i5-655K Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Core i5-655K performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.

cinebench_cinebench_r15_multicore #1581 of 1788
172
1%
Max: 14,978

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on Intel Core i5-655K.

cinebench_cinebench_r20_multicore #1581 of 1788
719
1%
Max: 62,412

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of Intel Core i5-655K.

cinebench_cinebench_r20_singlecore #1577 of 1784
101
1%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of Intel Core i5-655K after thermal limits kick in.

cinebench_cinebench_r23_multicore #1580 of 1788
1,714
1%
Max: 148,601
Compare with other CPUs

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how Intel Core i5-655K maintains boost clocks under continuous load.

cinebench_cinebench_r23_singlecore #1577 of 1788
242
1%
Max: 20,979

About Intel Core i5-655K

When looking into the real-world performance of the Intel Core i5-655K (Intel) processor, you're dealing with a piece of history from 2010. Its dual-core, four-thread architecture, based on the Clarkdale design, feels incredibly dated by modern standards. The benchmarks tell a clear story, with the chip scoring 1,714 points in Cinebench R23 multicore and just 242 points in the single-core test. This means multitasking is a serious struggle, and even basic productivity tasks will feel sluggish compared to any current CPU. If you're investigating this for a daily driver, you'll likely find it frustratingly slow for anything beyond web browsing with a few tabs open. It's a look back at what was once mainstream performance, but it's not a viable option for serious work today. Diving into the gaming capabilities of this 3.20 GHz dual-core chip reveals significant limitations. The Intel Core i5-655K lacks the core count and raw instruction-per-clock speed needed for modern titles. While it might handle very old esports games from its era at low settings, you'll encounter severe bottlenecks in anything remotely recent. The 4 MB of shared L3 cache is a tiny fraction of what's expected today, further hindering performance in complex game engines. Even with a dedicated GPU, the CPU itself will be the primary source of stuttering and low frame rates. For anyone investigating a budget gaming build, this processor is simply not a viable path for a smooth experience. From a price-to-performance standpoint, the Intel i5-655K presents a tricky proposition for collectors or extreme budget builders. Originally launched at $216, its value today is purely nostalgic rather than practical. Considering its performance ceiling, you would be investing in a platform that is severely outclassed by even the most basic modern entry-level CPUs. Investigating its market placement reveals it was a "K" series chip, meaning it had an unlocked multiplier, but that feature is largely irrelevant now due to the platform's overall weakness. You might find systems containing this processor for very cheap, but you're essentially buying e-waste for any functional purpose. The cost of building around it, even if the chip is free, outweighs any potential benefit. Understanding the platform requirements for the Intel Core i5-655K is crucial before considering it for any project. This processor requires a motherboard with the Intel Socket 1156, a platform that is now over a decade old and lacks modern features like USB 3.0 or NVMe support by default. You would be pairing it with DDR3 memory, which is slower and less efficient than today's standards. The 73W TDP is surprisingly modest, but finding a compatible cooler and a reliable power supply for such an old system can be a challenge. If you are investigating this chip, you must source an entire legacy system, as standalone components are rare and often in questionable condition. It's a reminder of how far platform integration and efficiency have come since its release on May 30, 2010.

The AMD Equivalent of Core i5-655K

Looking for a similar processor from AMD? The AMD Ryzen 5 1400 offers comparable performance and features in the AMD lineup.

AMD Ryzen 5 1400

AMD • 4 Cores

View Specs Compare

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