Winner
Intel Core2 Quad Q8400
CPUBoss recommends the Intel Core2 Quad Q8400 based on its performance and single-core performance.
See full details Intel Core2 Quad Q8400 vs AMD Sempron 3800+ |
Released April, 2009
Intel Core2 Quad Q8400
- 2.66 GHz
- Quad core
5.1 Out of 10
Reasons to buy the Intel Core2 Quad Q8400
 | Much more l2 cache 4 MB | | Much newer manufacturing process 45 nm |
| | Higher clock speed 2.66 GHz | | Has virtualization support Yes |
VS
First seen on June, 2012
AMD Sempron 3800+
- 2.2 GHz
- Single core
4.4 Out of 10
Reasons to buy the AMD Sempron 3800+
| | Much lower typical power consumption 50.38W | | Much lower annual home energy cost 14.94 $/year |
| | Much lower annual commercial energy cost 54.31 $/year |
CPUBoss Review Our evaluation of Q8400 vs 3800+ among all CPUs
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 | |
| Sky Diver and Cloud Gate | |
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? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
| 5.1 | CPUBoss Score |
Combination of all six facets | |
 | Winner |
Cast your vote Do you agree or disagree with CPUBoss?
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Intel Core2 Quad Q8400CPUBoss Winner |  | |
Differences What are the advantages of each
| |||||||
| Much more l2 cache | 4 MB | vs | 0 MB | Compared to all cpus, 4 MB l2 cache is just OK | |||
|---|---|---|---|---|---|---|---|
| Much newer manufacturing process | 45 nm | vs | 90 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| Higher clock speed | 2.66 GHz | vs | 2.2 GHz | More than 20% higher clock speed | |||
| Has virtualization support | Yes | vs | No | Somewhat common; Boosts performance of virtual machines | |||
| Much more l2 cache per core | 1 MB/core | vs | 0 MB/core | Compared to all cpus, 1 MB/core l2 cache per core is just OK | |||
| Much better geekbench 3 Multi-Core score | 5,035 | vs | 858 | More than 5.8x better geekbench 3 Multi-Core score | |||
| More cores | 4 | vs | 1 | 3 more cores; run more applications at once | |||
| Significantly better overclocked clock speed (Air) | 3.48 GHz | vs | 2.2 GHz | Around 60% better overclocked clock speed (Air) | |||
| Better geekbench 3 single core score | 1,465 | vs | 859 | More than 70% better geekbench 3 single core score | |||
| Significantly higher Maximum operating temperature | 71.4 °C | vs | 55 °C | Around 30% higher Maximum operating temperature | |||
| More threads | 4 | vs | 1 | 3 more threads | |||
| Much better overclocked clock speed (Water) | 3.91 GHz | vs | 2.2 GHz | Around 80% better overclocked clock speed (Water) | |||
| |||||||
| Much lower typical power consumption | 50.38W | vs | 135.97W | 2.7x lower typical power consumption | |||
| Much lower annual home energy cost | 14.94 $/year | vs | 51.39 $/year | 3.4x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 54.31 $/year | vs | 130.79 $/year | 2.4x lower annual commercial energy cost | |||
Report a correction
Benchmarks Real world tests of Core2 Quad Q8400 vs Sempron 3800+
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
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Core2 Quad Q8400 | vs | Sempron 3800+ |
|---|---|---|---|
| Clock speed | 2.66 GHz | 2.2 GHz | |
| Cores | Quad core | Single core | |
| Socket type | |||
| LGA 775 | |||
| S1 | |||
| AM2 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Has virtualization support | Yes | No | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| 3DNow! | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 95W | 62W | |
| Annual home energy cost | 51.39 $/year | 14.94 $/year | |
| Annual commercial energy cost | 130.79 $/year | 54.31 $/year | |
| Performance per watt | 0.94 pt/W | 0.59 pt/W | |
| Typical power consumption | 135.97W | 50.38W | |
details | Core2 Quad Q8400 | vs | Sempron 3800+ |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 4 | 1 | |
| L2 cache | 4 MB | 0 MB | |
| L2 cache per core | 1 MB/core | 0 MB/core | |
| Manufacture process | 45 nm | 90 nm | |
| Max CPUs | 1 | 1 | |
| Operating temperature | Unknown - 71.4°C | Unknown - 55°C | |
overclocking | |||
| Overclocked clock speed | 3.48 GHz | 2.2 GHz | |
| Overclocked clock speed (Water) | 3.91 GHz | 2.2 GHz | |
| Overclocked clock speed (Air) | 3.48 GHz | 2.2 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 | |
bus | |||
| Clock speed | 1,333 MHz | 333 MHz | |
 Intel Core2 Quad Q8400  Report a correction |  AMD Sempron 3800+ Report a correction |
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