Intel Core i5-660 vs Intel Core 2 Extreme QX9770
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CPU comparison with benchmarks
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| Intel Core i5-660 | Intel Core 2 Extreme QX9770 | |
CPU comparisonIntel Core i5-660 or Intel Core 2 Extreme QX9770 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The Intel Core i5-660 has 2 cores with 4 threads and clocks with a maximum frequency of 3.60 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core i5-660 was released in Q1/2010. The Intel Core 2 Extreme QX9770 has 4 cores with 4 threads and clocks with a maximum frequency of 3.20 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The Intel Core 2 Extreme QX9770 was released in Q1/2008. |
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| Intel Core i5 (331) | Family | Intel Core2 Extreme (7) |
| Intel Core i5 600 (6) | CPU group | Intel Core 2 Extreme QX9000 (3) |
| 1 | Generation | 2 |
| Clarkdale | Architecture | Yorkfield (Penryn) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i5-660 is a 2 core processor with a clock frequency of 3.33 GHz (3.60 GHz). The Intel Core 2 Extreme QX9770 has 4 CPU cores with a clock frequency of 3.20 GHz. |
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| Intel Core i5-660 | Characteristic | Intel Core 2 Extreme QX9770 |
| 2 | Cores | 4 |
| 4 | Threads | 4 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | Yes |
| 3.33 GHz | Frequency | 3.20 GHz |
| 3.60 GHz | Turbo Frequency (1 Core) | -- |
| -- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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| Intel HD Graphics (Westmere) | GPU | no iGPU |
| 0.50 GHz | GPU frequency | -- |
| 0.73 GHz | GPU (Turbo) | -- |
| 5 | GPU Generation | -- |
| 32 nm | Technology | |
| 2 | Max. displays | |
| 12 | Compute units | -- |
| 24 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 2 GB | Max. GPU Memory | -- |
| 10.1 | DirectX Version | -- |
Hardware codec supportA 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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| Intel HD Graphics (Westmere) | GPU | no iGPU |
| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| Decode | Codec h264 | No |
| No | Codec VP9 | No |
| No | Codec VP8 | No |
| No | Codec AV1 | No |
| Decode | Codec AVC | No |
| No | Codec VC-1 | No |
| No | Codec JPEG | No |
Memory & PCIeThe Intel Core i5-660 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Core 2 Extreme QX9770 can connect up to 16 GB of memory in 2 memory channels. |
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| Intel Core i5-660 | Characteristic | Intel Core 2 Extreme QX9770 |
| DDR3-1066, DDR3-1333 | Memory | DDR3-1066, DDR2-800 |
| 16 GB | Max. Memory | 16 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 21.3 GB/s | Max. Bandwidth | 17.1 GB/s |
| No | ECC | No |
| 0.50 MB | L2 Cache | 12.00 MB |
| 4.00 MB | L3 Cache | -- |
| 2.0 | PCIe version | -- |
| 16 | PCIe lanes | -- |
| 8.0 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i5-660 has a TDP of 73 W, that of the Intel Core 2 Extreme QX9770 is 136 W. |
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| Intel Core i5-660 | Characteristic | Intel Core 2 Extreme QX9770 |
| 73 W | TDP (PL1 / PBP) | 136 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe Intel Core i5-660 has a 4.50 MB cache, while the Intel Core 2 Extreme QX9770 cache has a total of 12.00 MB. |
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| Intel Core i5-660 | Characteristic | Intel Core 2 Extreme QX9770 |
| 32 nm | Technology | 45 nm |
| Monolithic | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2 | ISA extensions | MMX, SSE2, SSE3, SSE4.1 |
| LGA 1156 | Socket | LGA 775 |
| VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-d |
| Yes | AES-NI | No |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q1/2010 | Release date | Q1/2008 |
| 193 $ | Release price | -- |
| show more data | show more data | |
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 CPU benchmarks
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Core i5-660
2C 4T @ 3.60 GHz |
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Intel Core 2 Extreme QX9770
4C 4T @ 3.20 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Core i5-660
2C 4T @ 3.33 GHz |
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Intel Core 2 Extreme QX9770
4C 4T @ 3.20 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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Intel Core i5-660
2C 4T @ 3.33 GHz |
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Intel Core 2 Extreme QX9770
4C 4T @ 3.20 GHz |
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iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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Intel Core i5-660
Intel HD Graphics (Westmere) @ 0.73 GHz |
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Intel Core 2 Extreme QX9770
@ 0.00 GHz |
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Devices using this processor |
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| Intel Core i5-660 | Intel Core 2 Extreme QX9770 |
| Unknown | Unknown |
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