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Intel Core i7 3820
CPUBoss recommends the Intel Core i7 3820 based on its .
See full details Intel Core i7 3820 vs 3770 |
Released February, 2012
Intel Core i7 3820
- 3.6 GHz
- Quad core
- Unlocked
5.9 Out of 10
Reasons to buy the Intel Core i7 3820
 | Is unlocked Yes |
VS
Released April, 2012
Intel Core i7 3770
- 3.4 GHz
- Quad core
6.4 Out of 10
Reasons to buy the 3770
| | Has a built-in GPU Yes | | Supports trusted computing Yes |
CPUBoss Review Our evaluation of 3820 vs 3770 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 | |
| 6.4 | CPUBoss Score |
Combination of all six facets | |
 |
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Differences What are the advantages of each
| |||||||
| Is unlocked | Yes | vs | No | Somewhat common; An unlocked multiplier allows for easier overclocking | |||
|---|---|---|---|---|---|---|---|
| |||||||
| Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required | |||
| Supports trusted computing | Yes | vs | No | Somewhat common; Allows for safer, more reliable computing | |||
Report a correction
Benchmarks Real world tests of Core i7 3820 vs 3770
CompuBench 1.5 (T-Rex) Data courtesy CompuBench
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
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Core i7 3820 | vs | 3770 |
|---|---|---|---|
| Clock speed | 3.6 GHz | 3.4 GHz | |
| Turbo clock speed | 3.8 GHz | 3.9 GHz | |
| Cores | Quad core | Quad core | |
| Socket type | |||
| LGA 2011 | |||
| LGA 1155 | |||
| Is unlocked | Yes | No | |
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | No | Yes | |
| 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 | |
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 | DMI 2.0 | DMI | |
| Number of links | 1 | 1 | |
| Transfer rate | 5,000 MT/s | 5,000 MT/s | |
details | Core i7 3820 | vs | 3770 |
|---|---|---|---|
| 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 | 10 MB | 8 MB | |
| L3 cache per core | 2.5 MB/core | 2 MB/core | |
| Manufacture process | 32 nm | 22 nm | |
| Transistor count | 1,270,000,000 | 1,300,000,000 | |
| Max CPUs | 1 | 1 | |
| Clock multiplier | 36 | 34 | |
| Operating temperature | Unknown - 66.8°C | Unknown - 67.4°C | |
overclocking | |||
| Overclock popularity | 142 | 8 | |
| Overclock review score | 5 | 0.9 | |
| Overclocked clock speed | 4.68 GHz | 4.03 GHz | |
| Overclocked clock speed (Water) | 4.71 GHz | 4.32 GHz | |
| PassMark (Overclocked) | 5,531.8 | 3,085.5 | |
| Overclocked clock speed (Air) | 4.68 GHz | 4.03 GHz | |
power consumption | |||
| TDP | 130W | 77W | |
| Annual home energy cost | 49.49 $/year | 18.55 $/year | |
| Annual commercial energy cost | 138.93 $/year | 67.45 $/year | |
| Performance per watt | 6.18 pt/W | 7.25 pt/W | |
| Typical power consumption | 139.6W | 62.56W | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3-1600 | |||
| DDR3-1333 | |||
| DDR3-1066 | |||
| DDR3 | |||
| Channels | Quad Channel | Dual Channel | |
| Supports ECC | No | No | |
| Maximum bandwidth | 51,200 MB/s | 25,600 MB/s | |
| Maximum memory size | 65,771.52 MB | 32,768 MB | |
 Intel Core i7 3820  Report a correction |  Intel Core i7 3770 Report a correction |
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