Winner
Intel Core i7 3770K
CPUBoss recommends the Intel Core i7 3770K based on its performance, single-core performance and value.
See full details Intel Xeon L5520 vs Core i7 3770K |
Released March, 2009
Intel Xeon L5520
- 2.26 GHz
- Quad core
5.2 Out of 10
Reasons to buy the Intel Xeon L5520
 | Much lower typical power consumption 48.75W | | Supports more CPUs in SMP configuration 2 |
| | Much lower annual home energy cost 14.45 $/year | | Much lower annual commercial energy cost 52.56 $/year |
VS
Released April, 2012
Intel Core i7 3770K
- 3.5 GHz
- Quad core
- Unlocked
8.1 Out of 10
Reasons to buy the Core i7 3770K
| | Much higher clock speed 3.5 GHz | | Much higher turbo clock speed 3.9 GHz |
| | Much newer manufacturing process 22 nm | | Much better performance per dollar 2.21 pt/$ |
CPUBoss Review Our evaluation of L5520 vs 3770K 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 | |
| 8.1 | 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 lower typical power consumption | 48.75W | vs | 114.97W | 2.4x lower typical power consumption | |||
|---|---|---|---|---|---|---|---|
| Supports more CPUs in SMP configuration | 2 | vs | 1 | Twice as many CPUs in SMP configuration | |||
| Much lower annual home energy cost | 14.45 $/year | vs | 42.19 $/year | 2.9x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 52.56 $/year | vs | 112.39 $/year | 2.1x lower annual commercial energy cost | |||
| Supports more RAM | 147,456 MB | vs | 32,768 MB | Supports 4.5x more RAM | |||
| |||||||
| Much higher clock speed | 3.5 GHz | vs | 2.26 GHz | Around 55% higher clock speed | |||
| Much higher turbo clock speed | 3.9 GHz | vs | 2.48 GHz | More than 55% higher turbo clock speed | |||
| Much newer manufacturing process | 22 nm | vs | 45 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| Much better performance per dollar | 2.21 pt/$ | vs | 0.29 pt/$ | Around 7.8x better performance per dollar | |||
| Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required | |||
| Much better PassMark (Single core) score | 2,084 | vs | 1,034 | More than 2x better PassMark (Single core) score | |||
| Significantly better PassMark score | 9,544 | vs | 4,387 | Around 2.2x better PassMark score | |||
| Significantly better overclocked clock speed (Air) | 4.69 GHz | vs | 3.42 GHz | More than 35% better overclocked clock speed (Air) | |||
| Newer | Apr, 2012 | vs | Mar, 2009 | Release date over 3 years later | |||
| Better performance per watt | 4.55 pt/W | vs | 2.66 pt/W | More than 70% better performance per watt | |||
| Better overclocked clock speed (Water) | 4.8 GHz | vs | 4.08 GHz | Around 20% better overclocked clock speed (Water) | |||
Report a correction
Benchmarks Real world tests of Xeon L5520 vs Core i7 3770K
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 | Core i7 3770K |
|---|---|---|---|
| Clock speed | 2.26 GHz | 3.5 GHz | |
| Turbo clock speed | 2.48 GHz | 3.9 GHz | |
| Cores | Quad core | Quad core | |
| Socket type | |||
| LGA 1366 | |||
| LGA 1155 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | No | No | |
| 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 | 60W | 77W | |
| Annual home energy cost | 14.45 $/year | 42.19 $/year | |
| Annual commercial energy cost | 52.56 $/year | 112.39 $/year | |
| Performance per watt | 2.66 pt/W | 4.55 pt/W | |
| Typical power consumption | 48.75W | 114.97W | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3-1600 | |||
| DDR3-1333 | |||
| DDR3-1066 | |||
| DDR3 | |||
| DDR3-800 | |||
| Channels | Triple Channel | Dual Channel | |
| Supports ECC | Yes | No | |
| Maximum bandwidth | 25,599.99 MB/s | 25,600 MB/s | |
| Maximum memory size | 147,456 MB | 32,768 MB | |
details | Xeon L5520 | vs | Core i7 3770K |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 8 | 8 | |
| L2 cache | 1 MB | 1 MB | |
| L2 cache per core | 0.25 MB/core | 0.25 MB/core | |
| L3 cache | 8 MB | 8 MB | |
| L3 cache per core | 2 MB/core | 2 MB/core | |
| Manufacture process | 45 nm | 22 nm | |
| Transistor count | 731,000,000 | 1,400,000,000 | |
| Max CPUs | 2 | 1 | |
| Clock multiplier | 17 | 35 | |
| Voltage range | 0.75 - 1.35V | 1.33 - 1.36V | |
| Operating temperature | Unknown - 70°C | Unknown - 67.4°C | |
overclocking | |||
| Overclocked clock speed | 3.42 GHz | 4.69 GHz | |
| Overclocked clock speed (Water) | 4.08 GHz | 4.8 GHz | |
| Overclocked clock speed (Air) | 3.42 GHz | 4.69 GHz | |
integrated graphics | |||
| GPU | None | GPU | |
| Label | N/A | Intel® HD Graphics 4000 | |
| Latest DirectX | N/A | 11.x | |
| Number of displays supported | N/A | 3 | |
| GPU clock speed | N/A | 650 MHz | |
| Turbo clock speed | N/A | 1,150 MHz | |
| 3DMark06 | N/A | 5,339.9 | |
bus | |||
| Architecture | QPI | DMI | |
| Number of links | 2 | 1 | |
| Transfer rate | 5,860 MT/s | 5,000 MT/s | |
 Intel Xeon L5520  Report a correction |  Intel Core i7 3770K Report a correction |
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