Winner
Intel Xeon E5-1620
CPUBoss recommends the Intel Xeon E5-1620 based on its performance, single-core performance and value.
See full details Intel Xeon E5-1620 vs D-1521 |
Released March, 2012
Intel Xeon E5-1620
- 3.6 GHz
- Quad core
5.6 Out of 10
Reasons to buy the Intel Xeon E5-1620
 | Significantly higher clock speed 3.6 GHz | | Significantly higher turbo clock speed 3.8 GHz |
| | Much better performance per dollar 3.3 pt/$ | | Much better overclocked clock speed (Air) 3.93 GHz |
VS
Released October, 2015
Intel Xeon D-1521
- 2.4 GHz
- Quad core
5.2 Out of 10
Reasons to buy the D-1521
| | Much newer manufacturing process 14 nm | | Much lower typical power consumption 36.56W |
| | Newer Oct, 2015 | | Much lower annual home energy cost 10.84 $/year |
CPUBoss Review Our evaluation of E5-1620 vs D-1521 among all CPUs
Performance | |
Benchmark performance using all cores | |
| PCMark 8 Home 3.0 Accelerated, PassMark and 1 more | |
Single-core Performance | |
Individual core benchmark performance | |
| PassMark (Single Core), Geekbench 3 Single Core and 1 more | |
Integrated Graphics | |
Integrated GPU performance for graphics | |
| Sky Diver and Cloud Gate | |
Integrated Graphics (OpenCL) | |
Integrated GPU performance for parallel computing | |
| CompuBench 1.5 Bitcoin mining and 4 more | |
Performance per Watt | |
How efficiently does the processor use electricity? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
| 5.6 | CPUBoss Score |
Combination of all six facets | |
 | Winner |
Cast your vote Do you agree or disagree with CPUBoss?
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Differences What are the advantages of each
| |||||||
| Significantly higher clock speed | 3.6 GHz | vs | 2.4 GHz | More than 50% higher clock speed | |||
|---|---|---|---|---|---|---|---|
| Significantly higher turbo clock speed | 3.8 GHz | vs | 2.7 GHz | More than 40% higher turbo clock speed | |||
| Much better performance per dollar | 3.3 pt/$ | vs | 0.81 pt/$ | More than 4x better performance per dollar | |||
| Much better overclocked clock speed (Air) | 3.93 GHz | vs | 2.4 GHz | Around 65% better overclocked clock speed (Air) | |||
| Significantly better PassMark (Single core) score | 2,117 | vs | 1,441 | More than 45% better PassMark (Single core) score | |||
| Significantly better performance per watt | 7.47 pt/W | vs | 3.57 pt/W | More than 2x better performance per watt | |||
| Better PassMark score | 9,487 | vs | 6,980 | More than 35% better PassMark score | |||
| Supports more RAM | 384,000 MB | vs | 131,072 MB | Supports around 3x more RAM | |||
| Much better overclocked clock speed (Water) | 4.7 GHz | vs | 2.4 GHz | More than 95% better overclocked clock speed (Water) | |||
| |||||||
| Much newer manufacturing process | 14 nm | vs | 32 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| Much lower typical power consumption | 36.56W | vs | 105.63W | 2.9x lower typical power consumption | |||
| Newer | Oct, 2015 | vs | Mar, 2012 | Release date over 3 years later | |||
| Much lower annual home energy cost | 10.84 $/year | vs | 31.32 $/year | 2.9x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 39.42 $/year | vs | 113.88 $/year | 2.9x lower annual commercial energy cost | |||
Report a correction
Benchmarks Real world tests of Xeon E5-1620 vs D-1521
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 E5-1620 | vs | D-1521 |
|---|---|---|---|
| Clock speed | 3.6 GHz | 2.4 GHz | |
| Turbo clock speed | 3.8 GHz | 2.7 GHz | |
| Cores | Quad core | Quad 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 | 130W | 45W | |
| Annual home energy cost | 31.32 $/year | 10.84 $/year | |
| Annual commercial energy cost | 113.88 $/year | 39.42 $/year | |
| Performance per watt | 7.47 pt/W | 3.57 pt/W | |
| Typical power consumption | 105.63W | 36.56W | |
bus | |||
| Architecture | QPI | FSB | |
| Number of links | 0 | 1 | |
details | Xeon E5-1620 | vs | D-1521 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 8 | 8 | |
| Manufacture process | 32 nm | 14 nm | |
| Max CPUs | 1 | 1 | |
overclocking | |||
| Overclocked clock speed | 3.93 GHz | 2.4 GHz | |
| Overclocked clock speed (Water) | 4.7 GHz | 2.4 GHz | |
| Overclocked clock speed (Air) | 3.93 GHz | 2.4 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 | Dual Channel | |
| Supports ECC | Yes | Yes | |
| Maximum bandwidth | 51,200 MB/s | 12,800 MB/s | |
| Maximum memory size | 384,000 MB | 131,072 MB | |
 Intel Xeon E5-1620  Report a correction |  Intel Xeon D-1521 Report a correction |
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