i5-2500K vs Xeon E3-1226 v3
Aggregate performance score
Xeon E3-1226 v3 outperforms Core i5-2500K by a substantial 34% based on our aggregate benchmark results.
Primary details
Comparing Xeon E3-1226 v3 and Core i5-2500K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1545 | 1734 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.30 | 0.39 |
| Market segment | Server | Desktop processor |
| Series | Xeon (Desktop) | Core i5 (Desktop) |
| Power efficiency | 3.92 | 2.59 |
| Architecture codename | Haswell-WS (2013−2014) | Sandy Bridge (2011−2013) |
| Release date | 11 May 2014 (10 years ago) | 9 January 2011 (13 years ago) |
| Launch price (MSRP) | $213 | $216 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon E3-1226 v3 has 490% better value for money than i5-2500K.
Detailed specifications
Xeon E3-1226 v3 and Core i5-2500K basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 3.3 GHz | 3.3 GHz |
| Boost clock speed | 3.7 GHz | 3.7 GHz |
| Bus rate | 5 GT/s | 5 GT/s |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 256K (per core) | 256K (per core) |
| L3 cache | 8 MB (shared) | 6 MB (shared) |
| Chip lithography | 22 nm | 32 nm |
| Die size | 160 mm2 | 216 mm2 |
| Maximum core temperature | no data | 73 °C |
| Number of transistors | 1,400 million | 1,160 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon E3-1226 v3 and Core i5-2500K compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | FCLGA1150 | LGA1155 |
| Power consumption (TDP) | 84 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E3-1226 v3 and Core i5-2500K. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | - | - |
| TSX | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | + |
| SIPP | + | - |
| FDI | + | + |
| Fast Memory Access | + | + |
Security technologies
Xeon E3-1226 v3 and Core i5-2500K technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
| Secure Key | + | no data |
| Identity Protection | + | + |
| OS Guard | + | no data |
| Anti-Theft | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E3-1226 v3 and Core i5-2500K are enumerated here.
| AMD-V | + | - |
| VT-d | + | - |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E3-1226 v3 and Core i5-2500K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 32 GB | 32 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 25.6 GB/s | 21 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD P4600 | Intel HD Graphics 3000 |
| Max video memory | 1.7 GB | no data |
| Quick Sync Video | + | + |
| Clear Video HD | + | + |
| Graphics max frequency | 1.2 GHz | 1.1 GHz |
| Execution Units | 20 | no data |
| InTru 3D | + | + |
Graphics interfaces
Available interfaces and connections of Xeon E3-1226 v3 and Core i5-2500K integrated GPUs.
| Number of displays supported | 3 | 2 |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| VGA | + | no data |
Graphics image quality
Maximum display resolutions supported by Xeon E3-1226 v3 and Core i5-2500K integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 3840x2160@60Hz | no data |
| Max resolution over DisplayPort | 3840x2160@60Hz | no data |
| Max resolution over VGA | 2880x1800@60Hz | no data |
Graphics API support
APIs supported by Xeon E3-1226 v3 and Core i5-2500K integrated GPUs, sometimes API versions are included.
| DirectX | 11.2 | no data |
| OpenGL | 4.3 | no data |
Peripherals
Specifications and connection of peripherals supported by Xeon E3-1226 v3 and Core i5-2500K.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 16 | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Cinebench 15 64-bit single-core
Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.
Pros & cons summary
| Performance score | 3.48 | 2.60 |
| Recency | 11 May 2014 | 9 January 2011 |
| Chip lithography | 22 nm | 32 nm |
| Power consumption (TDP) | 84 Watt | 95 Watt |
Xeon E3-1226 v3 has a 33.8% higher aggregate performance score, an age advantage of 3 years, a 45.5% more advanced lithography process, and 13.1% lower power consumption.
The Xeon E3-1226 v3 is our recommended choice as it beats the Core i5-2500K in performance tests.
Be aware that Xeon E3-1226 v3 is a server/workstation processor while Core i5-2500K is a desktop one.
Should you still have questions on choice between Xeon E3-1226 v3 and Core i5-2500K, ask them in Comments section, and we shall answer.
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