INTEL

Intel Core i5-2550K

Intel processor specifications and benchmark scores

4
Cores
4
Threads
3.8
GHz Boost
95W
TDP
🔓Unlocked

Intel Core i5-2550K Specifications

⚙️

Core i5-2550K Core Configuration

Processing cores and threading

The Intel Core i5-2550K features 4 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
4
Threads
4
SMP CPUs
1
⏱️

i5-2550K Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i5-2550K 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 i5-2550K by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.4 GHz
Boost Clock
3.8 GHz
Multiplier
34x 🔓
💾

Intel's Core i5-2550K Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i5-2550K 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 i5-2550K'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
6 MB (shared)
🏗️

Sandy Bridge Architecture & Process

Manufacturing and design details

The Intel Core i5-2550K 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 i5-2550K incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Sandy Bridge
Codename
Sandy Bridge
Process Node
32 nm
Foundry
Intel
Transistors
1,160 million
Die Size
216 mm²
Generation
Core i5 (Sandy Bridge)
🔢

Sandy Bridge Instruction Set Features

Supported CPU instructions and extensions

The Core i5-2550K 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
AVX
AES-NI
Intel 64
VT-x
VT-d
🔌

i5-2550K Power & Thermal

TDP and power specifications

The Intel Core i5-2550K has a TDP (Thermal Design Power) of 95W, 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
95W
🔧

Intel Socket 1155 Platform & Socket

Compatibility information

The Core i5-2550K uses the Intel Socket 1155 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 1155
Chipsets
Z77, Z75, Q77, H77, Q75, B75, Z68, P67, H67, Q67, B65, H61
PCIe
Gen 2, 16 Lanes(CPU only)
Package
FC-LGA10
DDR5

Intel Socket 1155 Memory Support

RAM compatibility and speeds

Memory support specifications for the i5-2550K 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 i5-2550K 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
25.6 GB/s
📦

Core i5-2550K Product Information

Release and pricing details

The Intel Core i5-2550K 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 i5-2550K by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Jan 2012
Launch Price
$235
Market
Desktop
Status
End-of-life
Part Number
SR0QH

Core i5-2550K 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 i5-2550K performs in parallel rendering workloads.

cinebench_cinebench_r15_multicore #1247 of 1788
359
2%
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 i5-2550K. The more demanding workload provides better differentiation between current-generation processors. Content creators and 3D artists use this benchmark to estimate real-world render performance.

cinebench_cinebench_r20_multicore #1247 of 1788
1,498
2%
Max: 62,412
Compare with other CPUs

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 i5-2550K. The increased complexity provides more accurate performance differentiation between modern CPUs. Single-thread performance remains critical for gaming and applications with serial bottlenecks.

cinebench_cinebench_r20_singlecore #1247 of 1784
211
2%
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 i5-2550K after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss. Professional users rely on R23 scores to predict real-world rendering performance under sustained workloads.

cinebench_cinebench_r23_multicore #1247 of 1788
3,567
2%
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 i5-2550K maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance. This score is particularly important for understanding real-world responsiveness beyond initial boost behavior.

cinebench_cinebench_r23_singlecore #1247 of 1788
503
2%
Max: 20,979

geekbench_multicoreSource

Geekbench multi-core tests Intel Core i5-2550K across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance. Higher scores indicate better capability in multitasking and content creation. The cross-platform nature of Geekbench allows direct comparison with systems running different operating systems.

geekbench_multicore #483 of 711
2,096
9%
Max: 22,515
Compare with other CPUs

geekbench_singlecoreSource

Geekbench single-core measures how fast one thread of Intel Core i5-2550K can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use. Many applications still depend primarily on single-thread performance. Gaming performance is also heavily influenced by single-core speed in CPU-limited scenarios.

geekbench_singlecore #514 of 711
697
20%
Max: 3,401

About Intel Core i5-2550K

The Intel Core i5-2550K, a Sandy Bridge quad-core unlocked chip, delivers solid performance rooted in its mature 32nm architecture. With a base clock of 3.4 GHz and a single-core turbo of 3.8 GHz, this processor leverages Intel's Turbo Boost 2.0 for responsive single-threaded tasks, as reflected in its Cinebench R23 single-core score of 503 points. Its 95W TDP represents a reasonable power draw for its era, though modern efficiency standards have moved on. The 6MB of shared L3 cache provides a capable data reservoir for its four physical cores, minimizing latency in gaming and general compute. This CPU's architecture excels in workloads that favor strong per-core performance over high thread counts. The unlocked multiplier makes the 2550K a compelling choice for enthusiasts seeking to push beyond its stock frequencies.

  • Architecture: Built on the proven 32nm Sandy Bridge microarchitecture.
  • Overclocking: Fully unlocked multiplier for significant headroom.
  • Ideal Use: Classic gaming rigs and legacy system builds.

Benchmark results, like its 3,567-point Cinebench R23 multi-core score, show this quad-core processor holds up for light production work but is clearly outpaced by modern counterparts. Its performance profile makes this particular i5 ideal for specific, constrained workloads where thread count is less critical than raw clock speed. You can still rely on this vintage Intel chip for legacy gaming titles, everyday office tasks, and as a foundation for a budget-friendly secondary system. The socket 1155 platform offers a cost-effective entry point, though platform longevity is a consideration. When evaluating the Core i5-2550K, consider it a capable workhorse for its generation, not a modern multi-threading powerhouse. Pushing this CPU with a capable cooler reveals its true potential, allowing it to punch above its stock benchmark numbers.

The AMD Equivalent of Core i5-2550K

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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