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| Intel Pentium E2140 vs Core2 Duo E8400 |
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Released January, 2008
Intel Core2 Duo E8400
- 3 GHz
- Dual core
Reasons to buy the Core2 Duo E8400
![]() | Much higher clock speed 3 GHz | ![]() | Much more l2 cache 6 MB |
![]() | Much better PassMark score 2,160 | ![]() | Much better PassMark (Single core) score 1,251 |
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Differences What are the advantages of each
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CPUBoss is not aware of any important advantages of the Pentium E2140 vs the Core2 Duo E8400. | |||||||
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Much higher clock speed | 3 GHz | vs | 1.6 GHz | More than 85% higher clock speed | |||
---|---|---|---|---|---|---|---|
Much more l2 cache | 6 MB | vs | 1 MB | 6x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
Much better PassMark score | 2,160 | vs | 871 | Around 2.5x better PassMark score | |||
Much better PassMark (Single core) score | 1,251 | vs | 585 | Around 2.2x better PassMark (Single core) score | |||
Much better geekbench 2 (32-bit) score | 2,826 | vs | 1,447 | More than 95% better geekbench 2 (32-bit) score | |||
Much newer manufacturing process | 45 nm | vs | 65 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
Much better performance per watt | 1.83 pt/W | vs | 0.99 pt/W | Around 85% better performance per watt | |||
Much better overclocked clock speed (Air) | 4.22 GHz | vs | 3 GHz | More than 40% better overclocked clock speed (Air) | |||
Has virtualization support | Yes | vs | No | Somewhat common; Boosts performance of virtual machines | |||
Supports trusted computing | Yes | vs | No | Somewhat common; Allows for safer, more reliable computing | |||
Much more l2 cache per core | 3 MB/core | vs | 0.5 MB/core | 6x more l2 cache per core | |||
Much higher Maximum operating temperature | 72.4 °C | vs | 61.4 °C | Around 20% higher Maximum operating temperature | |||
Much better overclocked clock speed (Water) | 4.23 GHz | vs | 3.06 GHz | Around 40% better overclocked clock speed (Water) | |||
Newer | Jan, 2008 | vs | Apr, 2007 | Release date 9 months later |
Benchmarks Real world tests of Pentium E2140 vs Core2 Duo E8400
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Pentium E2140
1,521
Core2 Duo E8400
2,982
GeekBench 3 (Single core) Data courtesy Primate Labs
Pentium E2140
846
Core2 Duo E8400
1,625
GeekBench 3 (AES single core) Data courtesy Primate Labs
Pentium E2140
68,300 MB/s
Core2 Duo E8400
128,000 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Pentium E2140
1,447
Core2 Duo E8400
2,826
GeekBench
Pentium E2140
1,771
Core2 Duo E8400
4,794
3D Mark 11 (Physics)
Pentium E2140
1,070
Core2 Duo E8400
2,310
PassMark Data courtesy Passmark
Pentium E2140
871
Core2 Duo E8400
2,160
PassMark (Single Core)
Pentium E2140
585
Core2 Duo E8400
1,251
Specifications Full list of technical specs
summary | Pentium E2140 | vs | Core2 Duo E8400 |
---|---|---|---|
Clock speed | 1.6 GHz | 3 GHz | |
Cores | Dual core | Dual core | |
Socket type | |||
LGA 775 | |||
features | |||
Has a NX bit | Yes | Yes | |
Supports trusted computing | No | Yes | |
Has virtualization support | No | 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 | 0.99 pt/W | 1.83 pt/W | |
Typical power consumption | 52.81W | 52.81W | |
bus | |||
Architecture | FSB | FSB | |
Number of links | 1 | 1 | |
Clock speed | 800 MHz | 1,333 MHz |
details | Pentium E2140 | vs | Core2 Duo E8400 |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 2 | 2 | |
L2 cache | 1 MB | 6 MB | |
L2 cache per core | 0.5 MB/core | 3 MB/core | |
Manufacture process | 65 nm | 45 nm | |
Transistor count | 105,000,000 | 410,000,000 | |
Max CPUs | 1 | 1 | |
Clock multiplier | 8 | 9 | |
Voltage range | 0.85 - 1.5V | 0.85 - 1.36V | |
Operating temperature | Unknown - 61.4°C | Unknown - 72.4°C | |
overclocking | |||
Overclock popularity | 4 | 125 | |
Overclocked clock speed | 3 GHz | 4.22 GHz | |
Overclocked clock speed (Water) | 3.06 GHz | 4.23 GHz | |
Overclocked clock speed (Air) | 3 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 |
Intel Pentium E2140 ![]() | Intel Core2 Duo E8400 ![]() |
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