Intel Xeon E5645 vs Intel Xeon L5640
Comparative analysis of Intel Xeon E5645 and Intel Xeon L5640 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).
Differences
Reasons to consider the Intel Xeon E5645
- Around 10% higher maximum core temperature: 76.2°C vs 69.4°C
- Around 2% better performance in PassMark - Single thread mark: 1178 vs 1155
- Around 7% better performance in PassMark - CPU mark: 9164 vs 8525
- Around 13% better performance in Geekbench 4 - Multi-Core: 2731 vs 2407
- Around 14% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 2.308 vs 2.022
- Around 11% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.623 vs 0.561
- Around 8% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 3.664 vs 3.387
| Specifications (specs) | |
| Maximum core temperature | 76.2°C vs 69.4°C |
| Benchmarks | |
| PassMark - Single thread mark | 1178 vs 1155 |
| PassMark - CPU mark | 9164 vs 8525 |
| Geekbench 4 - Multi-Core | 2731 vs 2407 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 2.308 vs 2.022 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.623 vs 0.561 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 3.664 vs 3.387 |
Reasons to consider the Intel Xeon L5640
- Around 5% higher clock speed: 2.80 GHz vs 2.67 GHz
- Around 33% lower typical power consumption: 60 Watt vs 80 Watt
- Around 3% better performance in Geekbench 4 - Single Core: 455 vs 442
- Around 7% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 52.531 vs 49.224
| Specifications (specs) | |
| Maximum frequency | 2.80 GHz vs 2.67 GHz |
| Thermal Design Power (TDP) | 60 Watt vs 80 Watt |
| Benchmarks | |
| Geekbench 4 - Single Core | 455 vs 442 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 52.531 vs 49.224 |
Compare benchmarks
CPU 1: Intel Xeon E5645
CPU 2: Intel Xeon L5640
| PassMark - Single thread mark |
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| PassMark - CPU mark |
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| Geekbench 4 - Single Core |
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| Geekbench 4 - Multi-Core |
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| CompuBench 1.5 Desktop - Face Detection (mPixels/s) |
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| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) |
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| CompuBench 1.5 Desktop - T-Rex (Frames/s) |
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| CompuBench 1.5 Desktop - Video Composition (Frames/s) |
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| Name | Intel Xeon E5645 | Intel Xeon L5640 |
|---|---|---|
| PassMark - Single thread mark | 1178 | 1155 |
| PassMark - CPU mark | 9164 | 8525 |
| Geekbench 4 - Single Core | 442 | 455 |
| Geekbench 4 - Multi-Core | 2731 | 2407 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 2.308 | 2.022 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 49.224 | 52.531 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.623 | 0.561 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 3.664 | 3.387 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 11.094 |
Compare specifications (specs)
| Intel Xeon E5645 | Intel Xeon L5640 | |
|---|---|---|
Essentials |
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| Architecture codename | Westmere EP | Westmere EP |
| Launch date | March 2010 | March 2010 |
| Launch price (MSRP) | $294 | $200 |
| Place in performance rating | 2489 | 2479 |
| Price now | $239.95 | $34.75 |
| Processor Number | E5645 | L5640 |
| Series | Legacy Intel® Xeon® Processors | Legacy Intel® Xeon® Processors |
| Status | Launched | Discontinued |
| Value for money (0-100) | 7.96 | 54.30 |
| Vertical segment | Server | Server |
Performance |
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| 64 bit support | ||
| Base frequency | 2.40 GHz | 2.26 GHz |
| Bus Speed | 5.86 GT/s QPI | 5.86 GT/s QPI |
| Die size | 239 mm | 239 mm |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 256 KB (per core) |
| L3 cache | 12288 KB (shared) | 12288 KB (shared) |
| Manufacturing process technology | 32 nm | 32 nm |
| Maximum core temperature | 76.2°C | 69.4°C |
| Maximum frequency | 2.67 GHz | 2.80 GHz |
| Number of cores | 6 | 6 |
| Number of QPI Links | 2 | 2 |
| Number of threads | 12 | 12 |
| Transistor count | 1170 million | 1170 million |
| VID voltage range | 0.750V-1.350V | 0.750V-1.350V |
Memory |
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| ECC memory support | ||
| Max memory channels | 3 | 3 |
| Maximum memory bandwidth | 32 GB/s | 32 GB/s |
| Maximum memory size | 288 GB | 288 GB |
| Supported memory types | DDR3 800/1066/1333 | DDR3 800/1066/1333 |
Compatibility |
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| Low Halogen Options Available | ||
| Max number of CPUs in a configuration | 2 | 2 |
| Package Size | 42.5mm X 45mm | 42.5mm X 45mm |
| Sockets supported | FCLGA1366 | FCLGA1366 |
| Thermal Design Power (TDP) | 80 Watt | 60 Watt |
Security & Reliability |
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| Execute Disable Bit (EDB) | ||
| Intel® Trusted Execution technology (TXT) | ||
Advanced Technologies |
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| Enhanced Intel SpeedStep® technology | ||
| Idle States | ||
| Instruction set extensions | Intel® SSE4.2 | Intel® SSE4.2 |
| Intel 64 | ||
| Intel® AES New Instructions | ||
| Intel® Demand Based Switching | ||
| Intel® Hyper-Threading technology | ||
| Intel® Turbo Boost technology | ||
| Physical Address Extensions (PAE) | 40-bit | 40-bit |
| Thermal Monitoring | ||
Virtualization |
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| Intel® Virtualization Technology (VT-x) | ||
| Intel® Virtualization Technology for Directed I/O (VT-d) | ||
| Intel® VT-x with Extended Page Tables (EPT) | ||
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