Intel Xeon E5649 vs Intel Xeon E5540
Comparative analysis of Intel Xeon E5649 and Intel Xeon E5540 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).
Differences
Reasons to consider the Intel Xeon E5649
- CPU is newer: launch date 1 year(s) 11 month(s) later
- 2 more cores, run more applications at once: 6 vs 4
- 4 more threads: 12 vs 8
- Around 5% higher clock speed: 2.93 GHz vs 2.80 GHz
- Around 0% higher maximum core temperature: 76.2°C vs 76°C
- A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
- Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
- Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
- Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
- 2x more maximum memory size: 288 GB vs 144 GB
- Around 8% better performance in PassMark - Single thread mark: 1219 vs 1128
- Around 94% better performance in PassMark - CPU mark: 9554 vs 4935
- Around 23% better performance in Geekbench 4 - Single Core: 470 vs 383
- Around 79% better performance in Geekbench 4 - Multi-Core: 2849 vs 1596
| Specifications (specs) | |
| Launch date | February 2011 vs March 2009 |
| Number of cores | 6 vs 4 |
| Number of threads | 12 vs 8 |
| Maximum frequency | 2.93 GHz vs 2.80 GHz |
| Maximum core temperature | 76.2°C vs 76°C |
| Manufacturing process technology | 32 nm vs 45 nm |
| L1 cache | 64 KB (per core) vs 64 KB (per core) |
| L2 cache | 256 KB (per core) vs 256 KB (per core) |
| L3 cache | 12288 KB (shared) vs 8192 KB (shared) |
| Maximum memory size | 288 GB vs 144 GB |
| Benchmarks | |
| PassMark - Single thread mark | 1219 vs 1128 |
| PassMark - CPU mark | 9554 vs 4935 |
| Geekbench 4 - Single Core | 470 vs 383 |
| Geekbench 4 - Multi-Core | 2849 vs 1596 |
Compare benchmarks
CPU 1: Intel Xeon E5649
CPU 2: Intel Xeon E5540
| 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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| Name | Intel Xeon E5649 | Intel Xeon E5540 |
|---|---|---|
| PassMark - Single thread mark | 1219 | 1128 |
| PassMark - CPU mark | 9554 | 4935 |
| Geekbench 4 - Single Core | 470 | 383 |
| Geekbench 4 - Multi-Core | 2849 | 1596 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 2.594 | |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 25.435 | |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.647 |
Compare specifications (specs)
| Intel Xeon E5649 | Intel Xeon E5540 | |
|---|---|---|
Essentials |
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| Architecture codename | Westmere EP | Nehalem EP |
| Launch date | February 2011 | March 2009 |
| Launch price (MSRP) | $45 | $30 |
| Place in performance rating | 2424 | 2450 |
| Price now | $115 | $35 |
| Processor Number | E5649 | E5540 |
| Series | Legacy Intel® Xeon® Processors | Legacy Intel® Xeon® Processors |
| Status | Launched | Launched |
| Value for money (0-100) | 17.77 | 40.05 |
| Vertical segment | Server | Server |
Performance |
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| 64 bit support | ||
| Base frequency | 2.53 GHz | 2.53 GHz |
| Bus Speed | 5.86 GT/s QPI | 5.86 GT/s QPI |
| Die size | 239 mm | 263 mm2 |
| 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) | 8192 KB (shared) |
| Manufacturing process technology | 32 nm | 45 nm |
| Maximum core temperature | 76.2°C | 76°C |
| Maximum frequency | 2.93 GHz | 2.80 GHz |
| Number of cores | 6 | 4 |
| Number of QPI Links | 2 | 2 |
| Number of threads | 12 | 8 |
| Transistor count | 1170 million | 731 million |
| VID voltage range | 0.750V-1.350V | 0.75V -1.35V |
Memory |
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| ECC memory support | ||
| Max memory channels | 3 | 3 |
| Maximum memory bandwidth | 32 GB/s | 25.6 GB/s |
| Maximum memory size | 288 GB | 144 GB |
| Supported memory types | DDR3 800/1066/1333 | DDR3 800/1066 |
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 | 80 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 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) | ||
