Intel Xeon E5 2643 v2 vs E5-2643 |
Expected September, 2013
Intel Xeon E5 2643 v2
- 3.5 GHz
- Hexa core
5.4 Out of 10
Reasons to buy the Intel Xeon E5 2643 v2
 | Much more l3 cache 25 MB | | Much more l2 cache 2.5 MB |
| | More threads 20 | | Significantly higher clock speed 3.5 GHz |
VS
Released March, 2012
Intel Xeon E5-2643
- 3.3 GHz
- Quad core
5.5 Out of 10
Reasons to buy the E5-2643
| | Much better performance per dollar 1.09 pt/$ |
CPUBoss Review Our evaluation of 2643 v2 vs E5-2643 among all CPUs
Performance | |
Benchmark performance using all cores | |
| PCMark 8 Home 3.0 Accelerated, PassMark and 1 more | |
Single-core Performance | |
Individual core benchmark performance | |
| PassMark (Single Core), Geekbench 3 Single Core and 1 more | |
Integrated Graphics | |
Integrated GPU performance for graphics | |
| Sky Diver and Cloud Gate | |
Integrated Graphics (OpenCL) | |
Integrated GPU performance for parallel computing | |
| CompuBench 1.5 Bitcoin mining and 4 more | |
Performance per Watt | |
How efficiently does the processor use electricity? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
No winner declared
Too close to call
Cast your vote Do you agree or disagree with CPUBoss?
VS
Differences What are the advantages of each
| |||||||
| Much more l3 cache | 25 MB | vs | 10 MB | 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later | |||
|---|---|---|---|---|---|---|---|
| Much more l2 cache | 2.5 MB | vs | 1 MB | 2.5x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
| More threads | 20 | vs | 8 | 12 more threads | |||
| Significantly higher clock speed | 3.5 GHz | vs | 3.3 GHz | More than 5% higher clock speed | |||
| More cores | 6 | vs | 4 | 2 more cores; run more applications at once | |||
| Higher turbo clock speed | 3.8 GHz | vs | 3.5 GHz | Around 10% higher turbo clock speed | |||
| Supports more RAM | 786,432 MB | vs | 393,216 MB | Supports 2x more RAM | |||
| Much more l3 cache per core | 4.17 MB/core | vs | 2.5 MB/core | More than 65% more l3 cache per core | |||
| Newer manufacturing process | 22 nm | vs | 32 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| Significantly better overclocked clock speed (Air) | 3.57 GHz | vs | 3.3 GHz | Around 10% better overclocked clock speed (Air) | |||
| Significantly more l2 cache per core | 0.42 MB/core | vs | 0.25 MB/core | More than 65% more l2 cache per core | |||
| Much better overclocked clock speed (Water) | 4.07 GHz | vs | 3.3 GHz | Around 25% better overclocked clock speed (Water) | |||
| |||||||
| Much better performance per dollar | 1.09 pt/$ | vs | 0.9 pt/$ | More than 20% better performance per dollar | |||
Report a correction
Benchmarks Real world tests of Xeon E5 2643 v2 vs E5-2643
GeekBench 3 (Multi-core) Data courtesy Primate Labs
GeekBench 3 (Single core) Data courtesy Primate Labs
GeekBench 3 (AES single core) Data courtesy Primate Labs
Specifications Full list of technical specs
summary | Xeon E5 2643 v2 | vs | E5-2643 |
|---|---|---|---|
| Clock speed | 3.5 GHz | 3.3 GHz | |
| Turbo clock speed | 3.8 GHz | 3.5 GHz | |
| Cores | Hexa core | Quad core | |
| Socket type | |||
| LGA 2011 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE4 | |||
| AVX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| AES | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 130W | 130W | |
| Annual home energy cost | 31.32 $/year | 31.32 $/year | |
| Annual commercial energy cost | 113.88 $/year | 113.88 $/year | |
| Performance per watt | 10.7 pt/W | 7.41 pt/W | |
| Typical power consumption | 105.63W | 105.63W | |
bus | |||
| Architecture | QPI | QPI | |
| Number of links | 2 | 2 | |
| Data rate | 64,000 MB/s | 64,000 MB/s | |
| Transfer rate | 8,000 MT/s | 8,000 MT/s | |
| Clock speed | 4,000 MHz | 4,000 MHz | |
details | Xeon E5 2643 v2 | vs | E5-2643 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 20 | 8 | |
| L2 cache | 2.5 MB | 1 MB | |
| L2 cache per core | 0.42 MB/core | 0.25 MB/core | |
| L3 cache | 25 MB | 10 MB | |
| L3 cache per core | 4.17 MB/core | 2.5 MB/core | |
| Manufacture process | 22 nm | 32 nm | |
| Max CPUs | 2 | 2 | |
| Clock multiplier | 35 | 35 | |
| Operating temperature | Unknown - 74°C | Unknown - 73°C | |
overclocking | |||
| Overclocked clock speed | 3.57 GHz | 3.3 GHz | |
| Overclocked clock speed (Water) | 4.07 GHz | 3.3 GHz | |
| Overclocked clock speed (Air) | 3.57 GHz | 3.3 GHz | |
integrated graphics | |||
| GPU | None | None | |
| Label | N/A | N/A | |
| Latest DirectX | N/A | N/A | |
| Number of displays supported | N/A | N/A | |
| GPU clock speed | N/A | N/A | |
| Turbo clock speed | N/A | N/A | |
| 3DMark06 | N/A | N/A | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3-1600 | |||
| DDR3-1333 | |||
| DDR3-1066 | |||
| DDR3 | |||
| DDR3-800 | |||
| Channels | Quad Channel | Quad Channel | |
| Supports ECC | Yes | Yes | |
| Maximum bandwidth | 25,600 MB/s | 51,200 MB/s | |
| Maximum memory size | 786,432 MB | 393,216 MB | |
 Intel Xeon E5 2643 v2  Report a correction |  Intel Xeon E5-2643 Report a correction |
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