Winner
Intel Core i7 975
CPUBoss recommends the Intel Core i7 975 based on its .
See full details Intel Core i7 975 vs 920 |
Released June, 2009
Intel Core i7 975
- 3.33 GHz
- Quad core
- Unlocked
4.1 Out of 10
Reasons to buy the Intel Core i7 975
 | Is unlocked Yes |
VS
CPUBoss Review Our evaluation of 975 vs 920 among desktop CPUs (over 75W)
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 | |
| Fire Strike | |
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? | |
| Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more | |
| 4.1 | CPUBoss Score |
Combination of all six facets | |
 |
Cast your vote Do you agree or disagree with CPUBoss?
VS
Differences What are the advantages of each
| |||||||
| Is unlocked | Yes | vs | No | Somewhat common; An unlocked multiplier allows for easier overclocking | |||
|---|---|---|---|---|---|---|---|
| |||||||
| CPUBoss is not aware of any important advantages of the 920 vs the 975 Extreme Edition. | |||||||
Report a correction
Benchmarks Real world tests of Core i7 975 vs 920
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 | Core i7 975 | vs | 920 |
|---|---|---|---|
| Clock speed | 3.33 GHz | 2.66 GHz | |
| Turbo clock speed | 3.6 GHz | 2.93 GHz | |
| Cores | Quad core | Quad core | |
| Socket type | |||
| LGA 1366 | |||
| Is unlocked | Yes | No | |
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | No | No | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE4 | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 130W | 130W | |
| Annual home energy cost | 82.69 $/year | 48.38 $/year | |
| Annual commercial energy cost | 211.12 $/year | 134.55 $/year | |
| Performance per watt | 0.93 pt/W | 1.21 pt/W | |
| Idle power consumption | 154W | 81.7W | |
| Peak power consumption | 241W | 153.6W | |
| Typical power consumption | 212W | 135.63W | |
bus | |||
| Architecture | QPI | QPI | |
| Number of links | 1 | 1 | |
| Data rate | 25,600 MB/s | 19,200 MB/s | |
| Transfer rate | 6,400 MT/s | 4,800 MT/s | |
| Clock speed | 3,200 MHz | 2,400 MHz | |
details | Core i7 975 | vs | 920 |
|---|---|---|---|
| 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 | 45 nm | |
| Transistor count | 731,000,000 | 731,000,000 | |
| Max CPUs | 1 | 1 | |
| Clock multiplier | 25 | 20 | |
| Voltage range | 0.8 - 1.38V | 0.8 - 1.38V | |
| Operating temperature | 5 - 67.9°C | Unknown - 67.9°C | |
overclocking | |||
| Overclock popularity | 8 | 491 | |
| Overclocked clock speed | 4.46 GHz | 4.22 GHz | |
| Overclocked clock speed (Water) | 4.45 GHz | 4.24 GHz | |
| Overclocked clock speed (Air) | 4.46 GHz | 4.22 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 | |||
| DDR3-1066 | |||
| DDR3-800 | |||
| DDR3 | |||
| Channels | Triple Channel | Triple Channel | |
| Supports ECC | No | No | |
| Maximum bandwidth | 25,599.99 MB/s | 25,599.99 MB/s | |
 Intel Core i7 975  Report a correction |  Intel Core i7 920 Report a correction |
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