0 Comments
| Intel Core2 Duo E8400 vs E7400 |
Released January, 2008
Intel Core2 Duo E8400
- 3 GHz
- Dual core
Reasons to buy the Intel Core2 Duo E8400
![]() | Higher clock speed 3 GHz | ![]() | Supports trusted computing Yes |
![]() | Much better overclocked clock speed (Air) 4.22 GHz |
VS
Released January, 2008
Intel Core2 Duo E7400
- 2.8 GHz
- Dual core
Reasons to buy the E7400
![]() | Higher Maximum operating temperature 74.1 °C | ![]() | Better overclocked clock speed (Water) 4.58 GHz |
Cast your vote Do you agree or disagree with CPUBoss?
VS
Differences What are the advantages of each
| |||||||
Higher clock speed | 3 GHz | vs | 2.8 GHz | More than 5% higher clock speed | |||
---|---|---|---|---|---|---|---|
Supports trusted computing | Yes | vs | No | Somewhat common; Allows for safer, more reliable computing | |||
Much better overclocked clock speed (Air) | 4.22 GHz | vs | 3.91 GHz | Around 10% better overclocked clock speed (Air) | |||
| |||||||
Higher Maximum operating temperature | 74.1 °C | vs | 72.4 °C | Almost the same | |||
Better overclocked clock speed (Water) | 4.58 GHz | vs | 4.23 GHz | Around 10% better overclocked clock speed (Water) |
Benchmarks Real world tests of Core2 Duo E8400 vs E7400
CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench
Core2 Duo E8400
2.41 mHash/s
Core2 Duo E7400
2.26 mHash/s
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Core2 Duo E8400
2,982
Core2 Duo E7400
2,714
GeekBench 3 (Single core) Data courtesy Primate Labs
Core2 Duo E8400
1,625
Core2 Duo E7400
1,481
GeekBench 3 (AES single core) Data courtesy Primate Labs
Core2 Duo E8400
128,000 MB/s
Core2 Duo E7400
119,000 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Core2 Duo E8400
2,826
Core2 Duo E7400
2,543
GeekBench (64-bit) Data courtesy Primate Labs
Core2 Duo E8400
3,092
Core2 Duo E7400
2,834
PassMark Data courtesy Passmark
Core2 Duo E8400
2,160
Core2 Duo E7400
1,779
PassMark (Single Core)
Core2 Duo E8400
1,251
Core2 Duo E7400
1,147
Specifications Full list of technical specs
summary | Core2 Duo E8400 | vs | E7400 |
---|---|---|---|
Clock speed | 3 GHz | 2.8 GHz | |
Cores | Dual core | Dual core | |
Socket type | |||
LGA 775 | |||
features | |||
Has a NX bit | Yes | Yes | |
Supports trusted computing | Yes | No | |
Has virtualization support | Yes | Yes | |
Instruction set extensions | |||
SSE2 | |||
MMX | |||
SSE3 | |||
SSE | |||
SSE4.1 | |||
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 | 1.52 pt/W | |
Typical power consumption | 52.81W | 52.81W | |
bus | |||
Architecture | FSB | FSB | |
Number of links | 1 | 1 | |
Clock speed | 1,333 MHz | 1,066 MHz |
details | Core2 Duo E8400 | vs | E7400 |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 2 | 2 | |
L2 cache | 6 MB | 3 MB | |
L2 cache per core | 3 MB/core | 1.5 MB/core | |
Manufacture process | 45 nm | 45 nm | |
Transistor count | 410,000,000 | 228,000,000 | |
Max CPUs | 1 | 1 | |
Clock multiplier | 9 | 10 | |
Voltage range | 0.85 - 1.36V | 0.85 - 1.36V | |
Operating temperature | Unknown - 72.4°C | Unknown - 74.1°C | |
overclocking | |||
Overclocked clock speed | 4.22 GHz | 3.91 GHz | |
Overclocked clock speed (Water) | 4.23 GHz | 4.58 GHz | |
Overclocked clock speed (Air) | 4.22 GHz | 3.91 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 |
Intel Core2 Duo E8400 ![]() | Intel Core2 Duo E7400 ![]() |
Follow us
Compare
Related Comparisons
![]() | VS | ![]() |
$179 | ||
Q6600 vs E8400 | ||
![]() | VS | ![]() |
$125 | $179 | |
3220 vs E8400 | ||
![]() | VS | ![]() |
$125 | $179 | |
E7500 vs E8400 | ||
![]() | VS | ![]() |
$179 | $179 | |
Q8400 vs E8400 | ||
![]() | VS | ![]() |
$64 | $179 | |
E5700 vs E8400 | ||
![]() | VS | ![]() |
$200 | $179 | |
E8500 vs E8400 | ||
![]() | VS | ![]() |
$200 | $179 | |
Q9400 vs E8400 | ||
Popular Comparisons
![]() | VS | ![]() |
$300 | $305 | |
2500 vs W3520 | ||
![]() | VS | ![]() |
$350 | $272 | |
6700K vs 4790K | ||
![]() | VS | ![]() |
$281 | ||
6410 vs 4200U | ||
![]() | VS | ![]() |
$281 | ||
7th Gen A9-9410 vs 6200U | ||
![]() | VS | ![]() |
$161 | $275 | |
N3540 vs 4005U | ||
![]() | VS | ![]() |
$230 | $248 | |
9590 vs 4770K | ||
![]() | VS | ![]() |
$350 | $250 | |
6700K vs 6600K | ||