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| Intel Core2 Duo E8400 vs Core i3 2120 |
Released January, 2008
Intel Core2 Duo E8400
- 3 GHz
- Dual core
Reasons to buy the Intel Core2 Duo E8400
![]() | Much more l2 cache 6 MB | ![]() | Much more l2 cache per core 3 MB/core |
![]() | Much better overclocked clock speed (Air) 4.22 GHz | ![]() | Supports trusted computing Yes |
VS
Released January, 2011
Intel Core i3 2120
- 3.3 GHz
- Dual core
Reasons to buy the Core i3 2120
![]() | Has a built-in GPU Yes | ![]() | Much newer manufacturing process 32 nm |
![]() | Higher clock speed 3.3 GHz | ![]() | More threads 4 |
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Differences What are the advantages of each
| |||||||
Much more l2 cache | 6 MB | vs | 0.5 MB | 12x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
---|---|---|---|---|---|---|---|
Much more l2 cache per core | 3 MB/core | vs | 0.25 MB/core | 12x more l2 cache per core | |||
Much better overclocked clock speed (Air) | 4.22 GHz | vs | 3.42 GHz | Around 25% better overclocked clock speed (Air) | |||
Supports trusted computing | Yes | vs | No | Somewhat common; Allows for safer, more reliable computing | |||
Significantly higher Maximum operating temperature | 72.4 °C | vs | 69.1 °C | Around 5% higher Maximum operating temperature | |||
Much better overclocked clock speed (Water) | 4.23 GHz | vs | 3.37 GHz | More than 25% better overclocked clock speed (Water) | |||
| |||||||
Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required | |||
Much newer manufacturing process | 32 nm | vs | 45 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
Higher clock speed | 3.3 GHz | vs | 3 GHz | Around 10% higher clock speed | |||
More threads | 4 | vs | 2 | Twice as many threads | |||
Newer | Jan, 2011 | vs | Jan, 2008 | Release date over 3 years later |
Benchmarks Real world tests of Core2 Duo E8400 vs Core i3 2120
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Core2 Duo E8400
2,982
Core i3 2120
5,074
GeekBench 3 (Single core) Data courtesy Primate Labs
Core2 Duo E8400
1,625
Core i3 2120
2,371
GeekBench 3 (AES single core) Data courtesy Primate Labs
Core2 Duo E8400
128,000 MB/s
Core i3 2120
162,800 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Core2 Duo E8400
2,826
Core i3 2120
5,008
GeekBench (64-bit) Data courtesy Primate Labs
Core2 Duo E8400
3,092
Core i3 2120
5,421
GeekBench
Core2 Duo E8400
4,794
Core i3 2120
8,526
PassMark Data courtesy Passmark
Core2 Duo E8400
2,160
Core i3 2120
3,901
PassMark (Single Core)
Core2 Duo E8400
1,251
Core i3 2120
1,690
Reviews Word on the street
Core2 Duo E8400 | vs | Core i3 2120 | ||
![]() | 9.1 | 9.6 |
---|
Specifications Full list of technical specs
summary | Core2 Duo E8400 | vs | Core i3 2120 |
---|---|---|---|
Clock speed | 3 GHz | 3.3 GHz | |
Cores | Dual core | Dual core | |
Socket type | |||
LGA 775 | |||
LGA 1155 | |||
features | |||
Has a NX bit | Yes | Yes | |
Supports trusted computing | Yes | No | |
Has virtualization support | Yes | Yes | |
Instruction set extensions | |||
SSE2 | |||
MMX | |||
SSE4 | |||
AVX | |||
SSE3 | |||
SSE | |||
SSE4.1 | |||
SSE4.2 | |||
Supplemental SSE3 | |||
Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
TDP | 65W | 65W | |
Annual home energy cost | 15.66 $/year | 15.66 $/year | |
Annual commercial energy cost | 56.94 $/year | 56.94 $/year | |
Performance per watt | 1.83 pt/W | 2.79 pt/W | |
Typical power consumption | 52.81W | 52.81W |
details | Core2 Duo E8400 | vs | Core i3 2120 |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 2 | 4 | |
L2 cache | 6 MB | 0.5 MB | |
L2 cache per core | 3 MB/core | 0.25 MB/core | |
Manufacture process | 45 nm | 32 nm | |
Max CPUs | 1 | 1 | |
Clock multiplier | 9 | 33 | |
Operating temperature | Unknown - 72.4°C | Unknown - 69.1°C | |
overclocking | |||
Overclock popularity | 125 | 22 | |
Overclock review score | 4.5 | 1 | |
Overclocked clock speed | 4.22 GHz | 3.42 GHz | |
Overclocked clock speed (Water) | 4.23 GHz | 3.37 GHz | |
Overclocked clock speed (Air) | 4.22 GHz | 3.42 GHz | |
integrated graphics | |||
GPU | None | GPU | |
Label | N/A | Intel® HD Graphics 2000 | |
Number of displays supported | N/A | 2 | |
GPU clock speed | N/A | 850 MHz | |
Turbo clock speed | N/A | 1,100 MHz | |
bus | |||
Architecture | FSB | DMI | |
Number of links | 1 | 1 |
Intel Core2 Duo E8400 ![]() | Intel Core i3 2120 ![]() |
Desktops
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- 5 desktops with the Intel Core2 Duo E8400, starting from $100
- 2 desktops with the Intel Core i3 2120, starting from $274
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