Winner
Intel Xeon E5-2620
CPUBoss recommends the Intel Xeon E5-2620 based on its performance, single-core performance and value.
See full details Intel Xeon L5520 vs E5-2620 |
Released March, 2009
Intel Xeon L5520
- 2.26 GHz
- Quad core
5.1 Out of 10
Reasons to buy the Intel Xeon L5520
 | Significantly higher clock speed 2.26 GHz | | Much better overclocked clock speed (Air) 3.42 GHz |
| | Significantly lower typical power consumption 48.75W | | Much better overclocked clock speed (Water) 4.08 GHz |
VS
Released March, 2012
Intel Xeon E5-2620
- 2 GHz
- Hexa core
- Unlocked
5.3 Out of 10
Reasons to buy the E5-2620
| | Much more l3 cache 15 MB | | Much more l2 cache 2 MB |
| | Much better PassMark score 7,957 | | More cores 6 |
CPUBoss Review Our evaluation of L5520 vs E5-2620 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 | |
| 5.3 | CPUBoss Score |
Combination of all six facets | |
 | Winner |
Cast your vote Do you agree or disagree with CPUBoss?
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Differences What are the advantages of each
| |||||||
| Significantly higher clock speed | 2.26 GHz | vs | 2 GHz | Around 15% higher clock speed | |||
|---|---|---|---|---|---|---|---|
| Much better overclocked clock speed (Air) | 3.42 GHz | vs | 2.28 GHz | Around 50% better overclocked clock speed (Air) | |||
| Significantly lower typical power consumption | 48.75W | vs | 77.19W | More than 35% lower typical power consumption | |||
| Much better overclocked clock speed (Water) | 4.08 GHz | vs | 2 GHz | More than 2x better overclocked clock speed (Water) | |||
| Significantly lower annual commercial energy cost | 52.56 $/year | vs | 83.22 $/year | More than 35% lower annual commercial energy cost | |||
| Significantly lower annual home energy cost | 14.45 $/year | vs | 22.89 $/year | More than 35% lower annual home energy cost | |||
| |||||||
| Much more l3 cache | 15 MB | vs | 8 MB | Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later | |||
| Much more l2 cache | 2 MB | vs | 1 MB | 2x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
| Much better PassMark score | 7,957 | vs | 4,387 | More than 80% better PassMark score | |||
| More cores | 6 | vs | 4 | 2 more cores; run more applications at once | |||
| Much better performance per watt | 6.57 pt/W | vs | 2.66 pt/W | Around 2.5x better performance per watt | |||
| Much better performance per dollar | 1.52 pt/$ | vs | 0.29 pt/$ | More than 5.2x better performance per dollar | |||
| Supports more RAM | 393,216 MB | vs | 147,456 MB | Supports around 2.8x more RAM | |||
| Supports trusted computing | Yes | vs | No | Somewhat common; Allows for safer, more reliable computing | |||
| More threads | 12 | vs | 8 | 4 more threads | |||
| Newer manufacturing process | 32 nm | vs | 45 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| More l3 cache per core | 2.5 MB/core | vs | 2 MB/core | 25% more l3 cache per core | |||
| More l2 cache per core | 0.33 MB/core | vs | 0.25 MB/core | Around 35% more l2 cache per core | |||
| Newer | Mar, 2012 | vs | Mar, 2009 | Release date over 2 years later | |||
Report a correction
Benchmarks Real world tests of Xeon L5520 vs E5-2620
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
GeekBench (32-bit) Data courtesy Primate Labs
GeekBench (64-bit) Data courtesy Primate Labs
GeekBench
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Xeon L5520 | vs | E5-2620 |
|---|---|---|---|
| Clock speed | 2.26 GHz | 2 GHz | |
| Turbo clock speed | 2.48 GHz | 2.5 GHz | |
| Cores | Quad core | Hexa core | |
| Socket type | |||
| LGA 1366 | |||
| LGA 2011 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | No | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| AVX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| AES | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 60W | 95W | |
| Annual home energy cost | 14.45 $/year | 22.89 $/year | |
| Annual commercial energy cost | 52.56 $/year | 83.22 $/year | |
| Performance per watt | 2.66 pt/W | 6.57 pt/W | |
| Typical power consumption | 48.75W | 77.19W | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3-1333 | |||
| DDR3-1066 | |||
| DDR3-800 | |||
| DDR3 | |||
| Channels | Triple Channel | Quad Channel | |
| Supports ECC | Yes | Yes | |
| Maximum bandwidth | 25,599.99 MB/s | 42,666.64 MB/s | |
| Maximum memory size | 147,456 MB | 393,216 MB | |
details | Xeon L5520 | vs | E5-2620 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 8 | 12 | |
| L2 cache | 1 MB | 2 MB | |
| L2 cache per core | 0.25 MB/core | 0.33 MB/core | |
| L3 cache | 8 MB | 15 MB | |
| L3 cache per core | 2 MB/core | 2.5 MB/core | |
| Manufacture process | 45 nm | 32 nm | |
| Max CPUs | 2 | 2 | |
| Clock multiplier | 17 | 25 | |
| Voltage range | 0.75 - 1.35V | 0.6 - 1.35V | |
| Operating temperature | Unknown - 70°C | Unknown - 77.4°C | |
overclocking | |||
| Overclocked clock speed | 3.42 GHz | 2.28 GHz | |
| Overclocked clock speed (Water) | 4.08 GHz | 2 GHz | |
| Overclocked clock speed (Air) | 3.42 GHz | 2.28 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 | |
bus | |||
| Architecture | QPI | QPI | |
| Number of links | 2 | 2 | |
| Data rate | 46,928 MB/s | 57,600 MB/s | |
| Transfer rate | 5,860 MT/s | 7,200 MT/s | |
| Clock speed | 2,930 MHz | 3,600 MHz | |
 Intel Xeon L5520  Report a correction |  Intel Xeon E5-2620 Report a correction |
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