Intel Core 2 Quad Q8400s vs Intel Core2 Duo E8400
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Intel Core 2 Quad Q8400s or Intel Core 2 Quad Q8400s – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core 2 Quad Q8400s features 4 processor cores and has the capability to manage 4 threads concurrently. It was released in Q2/2009 and belongs to the 2 generation of the Intel Core2 Quad series. To use the Intel Core 2 Quad Q8400s, you'll need a motherboard with a LGA 775 socket. The Intel Core2 Duo E8400 features 2 processor cores and has the capability to manage 2 threads concurrently. It was released in Q1/2008 and belongs to the 2 generation of the Intel Core2 Duo series. To use the Intel Core2 Duo E8400, you'll need a motherboard with a LGA 775 socket. |
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| Desktop / Server | Segment | Desktop / Server |
| Intel Core 2 Quad Q8400s | Name | Intel Core2 Duo E8400 |
| Intel Core 2 Quad Q8000/Q9000 | Group | Intel Core 2 Duo E7000/E8000 |
| 2 | Generation | 2 |
| Intel Core2 Quad | Family | Intel Core2 Duo |
CPU Cores and Base Frequency |
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The Intel Core 2 Quad Q8400s has 4 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Core 2 Quad Q8400s is 2.66 GHz The Intel Core2 Duo E8400 has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the Intel Core2 Duo E8400 is 3.0 GHz |
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| No | Hyperthreading | No |
| 4 | CPU Cores | 2 |
| 2.66 GHz | Frequency | 3.0 GHz |
| normal | Core architecture | normal |
| No | Overclocking | Yes |
| 4x | Cores | 2x |
| 4 | Threads | 2 |
Internal Graphics |
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The Intel Core 2 Quad Q8400s does not have integrated graphics.
The Intel Core2 Duo E8400 does not have integrated graphics. |
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| -- | Direct X | -- |
| -- | Execution units | -- |
| 0 bytes | Max. GPU Memory | 0 bytes |
| -- | Max. displays | -- |
| -- | Release date | -- |
| -- | GPU (Turbo) | -- |
| -- | Shaders | -- |
| GPU name | ||
| -- | Generation | -- |
| -- | GPU frequency | -- |
| -- | Technology | -- |
Artificial Intelligence and Machine Learning |
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| -- | AI specifications | -- |
| -- | AI hardware | -- |
Hardware codec support |
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A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
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| -- | VP8 | -- |
| -- | AVC | -- |
| -- | h265 / HEVC (8 bit) | -- |
| -- | AV1 | -- |
| -- | VC-1 | -- |
| -- | h264 | -- |
| -- | VP9 | -- |
| -- | h265 / HEVC (10 bit) | -- |
| -- | JPEG | -- |
Memory & PCIe |
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| DDR3-1066, DDR2-800 | Memory type | DDR3-1333, DDR2-1066 |
| -- | Bandwidth | -- |
| No | ECC | No |
| 2 | Memory channels | 2 |
| pci | PCIe | pci |
| No | AES-NI | No |
| 16.0 GB | Max. Memory | 16.0 GB |
Thermal Management |
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The processor has a thermal design power (TDP) of 65 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself. |
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| -- | Tjunction max | -- |
| 65 W | TDP (PL1 / PBP) | 65 W |
Technical details |
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The Intel Core 2 Quad Q8400s is manufactured using a 45 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU. A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming. The Intel Core2 Duo E8400 is manufactured using a 45 nm process. |
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| Monolithic | Chip design | Monolithic |
| 0 bytes | L3-Cache | 0 bytes |
| LGA 775 | Socket | LGA 775 |
| Technical data sheet | Documents | Technical data sheet |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| 4.0 MB | L2-Cache | 6.0 MB |
| Q2/2009 | Release date | Q1/2008 |
| Yorkfield (Penryn) | Architecture | Wolfdale (Penryn) |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| -- | Release price | -- |
| SSE3, SSE4.1, MMX, SSE2 | ISA extensions | SSE3, MMX, SSE, SSE2, SSE 4.1 |
| VT-x, VT-d | Virtualization | VT-x |
| -- | Part Number | -- |
| 45 nm | Technology | 45 nm |
Estimated results for PassMark CPU Mark
Geekbench 5, 64bit (Multi-Core)
Geekbench 5, 64bit (Single-Core)
CPU-Z Benchmark 17 (Multi-Core)
CPU-Z Benchmark 17 (Single-Core)
