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: 1175 vs 1155
- Around 8% better performance in PassMark - CPU mark: 9130 vs 8474
- 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 | 1175 vs 1155 |
| PassMark - CPU mark | 9130 vs 8474 |
| 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 |
|
|
||||
| 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) |
|
|
| Name | Intel Xeon E5645 | Intel Xeon L5640 |
|---|---|---|
| PassMark - Single thread mark | 1175 | 1155 |
| PassMark - CPU mark | 9130 | 8474 |
| 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 |
||
| Architecture codename | Westmere EP | Westmere EP |
| Launch date | March 2010 | March 2010 |
| Launch price (MSRP) | $294 | $200 |
| Place in performance rating | 2485 | 2475 |
| 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 |
||
| 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 |
||
| 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 |
||
| 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 |
||
| Execute Disable Bit (EDB) | ||
| Intel® Trusted Execution technology (TXT) | ||
Advanced Technologies |
||
| 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 |
||
| Intel® Virtualization Technology (VT-x) | ||
| Intel® Virtualization Technology for Directed I/O (VT-d) | ||
| Intel® VT-x with Extended Page Tables (EPT) | ||
Navigation
Choose a CPU
Compare processors
Compare Intel Xeon E5645 with others
IntelXeon E5645 vs
IntelXeon X5687
IntelXeon E5645 vs
IntelXeon W3690
IntelXeon E5645 vs
AMDOpteron 6282 SE
IntelXeon E5645 vs
AMDOpteron 3320 EE
IntelXeon E5645 vs
AMDOpteron 6180 SE
IntelXeon E5645 vs
IntelAtom C3958
