Winner
Intel Xeon E5-2620 v3
CPUBoss recommends the Intel Xeon E5-2620 v3 based on its cost to run and value.
See full details Intel Xeon E5-4640 vs E5-2620 v3 |
Released May, 2012
Intel Xeon E5-4640
- 2.4 GHz
- Octa core
4.5 Out of 10
Reasons to buy the Intel Xeon E5-4640
 | Much more l3 cache 20 MB | | More threads 16 |
| | Supports more CPUs in SMP configuration 4 |
VS
Released July, 2014
Intel Xeon E5-2620 v3
- 2.4 GHz
- Hexa core
- Unlocked
5.6 Out of 10
Reasons to buy the E5-2620 v3
| | Significantly higher turbo clock speed 3.2 GHz | | Much better performance per watt 12.6 pt/W |
| | Much better performance per dollar 4.08 pt/$ | | Supports more RAM 786,432 MB |
CPUBoss Review Our evaluation of E5-4640 vs E5-2620 v3 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 | |
| 5.6 | CPUBoss Score |
Combination of all six facets | |
 | Winner |
Cast your vote Do you agree or disagree with CPUBoss?
VS
Differences What are the advantages of each
| |||||||
| Much more l3 cache | 20 MB | vs | 15 MB | Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later | |||
|---|---|---|---|---|---|---|---|
| More threads | 16 | vs | 12 | 4 more threads | |||
| Supports more CPUs in SMP configuration | 4 | vs | 2 | Twice as many CPUs in SMP configuration | |||
| |||||||
| Significantly higher turbo clock speed | 3.2 GHz | vs | 2.8 GHz | Around 15% higher turbo clock speed | |||
| Much better performance per watt | 12.6 pt/W | vs | 1.83 pt/W | Around 7x better performance per watt | |||
| Much better performance per dollar | 4.08 pt/$ | vs | 0.17 pt/$ | Around 23.5x better performance per dollar | |||
| Supports more RAM | 786,432 MB | vs | 393,216 MB | Supports 2x more RAM | |||
| Newer manufacturing process | 22 nm | vs | 32 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| Lower typical power consumption | 69.06W | vs | 77.19W | More than 10% lower typical power consumption | |||
| Much better overclocked clock speed (Water) | 2.87 GHz | vs | 2.4 GHz | Around 20% better overclocked clock speed (Water) | |||
| Newer | Jul, 2014 | vs | May, 2012 | Release date over 2 years later | |||
| Lower annual commercial energy cost | 74.46 $/year | vs | 83.22 $/year | More than 10% lower annual commercial energy cost | |||
| Lower annual home energy cost | 20.48 $/year | vs | 22.89 $/year | More than 10% lower annual home energy cost | |||
Report a correction
Benchmarks Real world tests of Xeon E5-4640 vs E5-2620 v3
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
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Xeon E5-4640 | vs | E5-2620 v3 |
|---|---|---|---|
| Clock speed | 2.4 GHz | 2.4 GHz | |
| Turbo clock speed | 2.8 GHz | 3.2 GHz | |
| Cores | Octa core | Hexa core | |
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| AVX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| AES | |||
| AVX 2.0 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 95W | 85W | |
| Annual home energy cost | 22.89 $/year | 20.48 $/year | |
| Annual commercial energy cost | 83.22 $/year | 74.46 $/year | |
| Performance per watt | 1.83 pt/W | 12.6 pt/W | |
| Typical power consumption | 77.19W | 69.06W | |
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 E5-4640 | vs | E5-2620 v3 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 16 | 12 | |
| L3 cache | 20 MB | 15 MB | |
| L3 cache per core | 2.5 MB/core | 2.5 MB/core | |
| Manufacture process | 32 nm | 22 nm | |
| Max CPUs | 4 | 2 | |
overclocking | |||
| Overclocked clock speed | 2.63 GHz | 2.66 GHz | |
| Overclocked clock speed (Water) | 2.4 GHz | 2.87 GHz | |
| Overclocked clock speed (Air) | 2.63 GHz | 2.66 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 | |||
| DDR | |||
| Channels | Quad Channel | Quad Channel | |
| Supports ECC | Yes | Yes | |
| Maximum bandwidth | 51,200 MB/s | 6,400 MB/s | |
| Maximum memory size | 393,216 MB | 786,432 MB | |
 Intel Xeon E5-4640  Report a correction |  Intel Xeon E5-2620 v3 Report a correction |
Follow us
Compare
Related Comparisons
 | VS |  |
| $262 | ||
| E5-2620 v3 vs E5-2689 | ||
| | VS |  |
| $262 | $612 | |
| E5-2620 v3 vs E5-2630L v3 | ||
| | VS |  |
| $262 | $440 | |
| E5-2620 v3 vs 2620 v2 | ||
| | VS |  |
| $262 | $240 | |
| E5-2620 v3 vs 3770 | ||
| | VS |  |
| $262 | $410 | |
| E5-2620 v3 vs E5-2620 | ||
| | VS |  |
| $262 | $390 | |
| E5-2620 v3 vs 5820K | ||
| | VS |  |
| $262 | $297 | |
| E5-2620 v3 vs E5-1620 v3 | ||
Popular Comparisons
 | VS |  |
| $305 | $300 | |
| W3520 vs 2500 | ||
 | VS |  |
| $272 | $350 | |
| 4790K vs 6700K | ||
 | VS |  |
| $281 | ||
| 4200U vs 6410 | ||
 | VS |  |
| $281 | ||
| 6200U vs 7th Gen A9-9410 | ||
 | VS |  |
| $275 | $161 | |
| 4005U vs N3540 | ||
 | VS |  |
| $180 | ||
| 3470 vs 5200 | ||
 | VS |  |
| $134 | $225 | |
| 847 vs 3217U | ||
