Core i5-2500K vs Core i5-2550K
Core i5-2500K
Core i5-2550K
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Core i5-2500K is positioned at rank 828 and the Core i5-2550K is on rank 841, so the Core i5-2500K offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i5-2500K
Performance Per Dollar Core i5-2550K
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-2500K | Core i5-2550K |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($35) | ⚠️ Higher cost ($46) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core i5-2500K | Core i5-2550K |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+29%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($35) | ⚠️ Higher cost ($46) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Core i5-2500K and Core i5-2550K
Core i5-2500K
The Core i5-2500K is manufactured by Intel. It was released in 9 January 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.7 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 4,141 points. Launch price was $216.
Core i5-2550K
The Core i5-2550K is manufactured by Intel. It was released in Janeiro 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.4 GHz, with boost up to 3.8 GHz. L3 cache: 6144 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 4,228 points. Launch price was $189.
Processing Power
Both the Core i5-2500K and Core i5-2550K share an identical 4-core/4-thread configuration. Boost clocks reach 3.7 GHz on the Core i5-2500K versus 3.8 GHz on the Core i5-2550K — a 2.7% clock advantage for the Core i5-2550K (base: 3.3 GHz vs 3.4 GHz). Both are built on the Sandy Bridge (2011−2013) architecture using a 32 nm process. In PassMark, the Core i5-2500K scores 4,141 against the Core i5-2550K's 4,228 — a 2.1% lead for the Core i5-2550K. Cinebench R23 multi-core: 3,200 vs 4,058 (23.6% advantage for the Core i5-2550K). Geekbench 6 single-core — the metric most relevant to gaming — records 684 vs 707, a 3.3% lead for the Core i5-2550K that directly translates to higher frame rates. Multi-core Geekbench: 2,032 vs 2,010 (1.1% advantage for the Core i5-2500K). L3 cache: 6 MB (total) on the Core i5-2500K vs 6144 kB (total) on the Core i5-2550K.
| Feature | Core i5-2500K | Core i5-2550K |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 3.7 GHz | 3.8 GHz+3% |
| Base Clock | 3.3 GHz | 3.4 GHz+3% |
| L3 Cache | 6 MB (total) | 6144 kB (total) |
| L2 Cache | 256K (per core) | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Sandy Bridge (2011−2013) |
| PassMark | 4,141 | 4,228+2% |
| Cinebench R23 Multi | 3,200 | 4,058+27% |
| Geekbench 6 Single | 684 | 707+3% |
| Geekbench 6 Multi | 2,032+1% | 2,010 |
Memory & Platform
Both processors use the LGA1155 socket with PCIe 2.0. Both support up to DDR3-1333 memory speed. Both support up to 32 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: P67,Z68,Z77 (Core i5-2500K) and Z77,Z75,Q77,H77,Q75,B75,Z68,P67,H67,Q67,B65,H61 (Core i5-2550K).
| Feature | Core i5-2500K | Core i5-2550K |
|---|---|---|
| Socket | LGA1155 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | DDR3-1600 |
| Max RAM Capacity | 32 GB | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Virtualization support: VT-x (Core i5-2500K) vs Yes (Core i5-2550K). The Core i5-2500K includes integrated graphics (HD Graphics 3000), while the Core i5-2550K requires a dedicated GPU. Primary use case: Core i5-2500K targets Gaming. Direct competitor: Core i5-2500K rivals FX-6300.
| Feature | Core i5-2500K | Core i5-2550K |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | HD Graphics 3000 | — |
| Unlocked | Yes | — |
| AVX-512 | No | No |
| Virtualization | VT-x | Yes |
| Target Use | Gaming | — |
Value Analysis
The Core i5-2500K launched at $225 MSRP, while the Core i5-2550K debuted at $235. At current prices ($35 vs $46), the Core i5-2500K is $11 cheaper. In terms of value (PassMark points per dollar), the Core i5-2500K delivers 118.3 pts/$ vs 91.9 pts/$ for the Core i5-2550K — making the Core i5-2500K the 25.1% better value option.
| Feature | Core i5-2500K | Core i5-2550K |
|---|---|---|
| MSRP | $225-4% | $235 |
| Avg Price (30d) | $35-24% | $46 |
| Performance per Dollar | 118.3+29% | 91.9 |
| Release Date | 2011 | 2012 |
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