Intel Core i5-8400H vs Intel Core i7-3970X
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CPU comparison with benchmarks
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| Intel Core i5-8400H | Intel Core i7-3970X | |
CPU comparisonIntel Core i5-8400H or Intel Core i7-3970X - 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 i5-8400H has 4 cores with 8 threads and clocks with a maximum frequency of 4.20 GHz. Up to 64 GB of memory is supported in 2 memory channels. The Intel Core i5-8400H was released in Q2/2018. The Intel Core i7-3970X has 6 cores with 12 threads and clocks with a maximum frequency of 4.00 GHz. The CPU supports up to 64 GB of memory in 4 memory channels. The Intel Core i7-3970X was released in Q4/2012. |
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| Intel Core i5 (331) | Family | Intel Core i7 Extreme Edition (24) |
| Intel Core i 8000H (6) | CPU group | Intel Core i 3000X (4) |
| 8 | Generation | 3 |
| Coffee Lake H | Architecture | Sandy Bridge E |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| Intel Core i5-9400H | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i5-8400H is a 4 core processor with a clock frequency of 2.50 GHz (4.20 GHz). The Intel Core i7-3970X has 6 CPU cores with a clock frequency of 3.50 GHz (4.00 GHz). |
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| Intel Core i5-8400H | Characteristic | Intel Core i7-3970X |
| 4 | Cores | 6 |
| 8 | Threads | 12 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | Yes |
| 2.50 GHz | Frequency | 3.50 GHz |
| 4.20 GHz | Turbo Frequency (1 Core) | 4.00 GHz |
| 3.70 GHz | Turbo Frequency (All Cores) | 4.00 GHz |
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 630 | GPU | no iGPU |
| 0.30 GHz | GPU frequency | -- |
| 1.10 GHz | GPU (Turbo) | -- |
| 9.5 | GPU Generation | -- |
| 14 nm | Technology | |
| 3 | Max. displays | |
| 24 | Compute units | -- |
| 192 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 64 GB | Max. GPU Memory | -- |
| 12 | 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 630 | GPU | no iGPU |
| Decode / Encode | Codec h265 / HEVC (8 bit) | No |
| Decode / Encode | Codec h265 / HEVC (10 bit) | No |
| Decode / Encode | Codec h264 | No |
| Decode / Encode | Codec VP9 | No |
| Decode / Encode | Codec VP8 | No |
| No | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeThe Intel Core i5-8400H supports a maximum of 64 GB of memory in 2 memory channels. The Intel Core i7-3970X can connect up to 64 GB of memory in 4 memory channels. |
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| Intel Core i5-8400H | Characteristic | Intel Core i7-3970X |
| DDR4-2666 | Memory | DDR3-1600 |
| 64 GB | Max. Memory | 64 GB |
| 2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
| 42.7 GB/s | Max. Bandwidth | 51.2 GB/s |
| No | ECC | No |
| -- | L2 Cache | -- |
| 8.00 MB | L3 Cache | 15.00 MB |
| 3.0 | PCIe version | 2.0 |
| 16 | PCIe lanes | 40 |
| 15.8 GB/s | PCIe Bandwidth | 20.0 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i5-8400H has a TDP of 45 W, that of the Intel Core i7-3970X is 150 W. |
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| Intel Core i5-8400H | Characteristic | Intel Core i7-3970X |
| 45 W | TDP (PL1 / PBP) | 150 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe Intel Core i5-8400H has a 8.00 MB cache, while the Intel Core i7-3970X cache has a total of 15.00 MB. |
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| Intel Core i5-8400H | Characteristic | Intel Core i7-3970X |
| 14 nm | Technology | 32 nm |
| Monolithic | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE4.1, SSE4.2, AVX |
| BGA 1440 | Socket | LGA 2011 |
| VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-x EPT, VT-d (C2 Stepping) |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | Windows 10, Linux |
| Q2/2018 | Release date | Q4/2012 |
| -- | Release price | 820 $ |
| show more data | show more data | |
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4C 8T @ 2.50 GHz (4.20 GHz) buy now on Amazon and save!
6C 12T @ 3.50 GHz (4.00 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 4 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 i5-8400H
4C 8T @ 4.20 GHz |
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Intel Core i7-3970X
6C 12T @ 4.00 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 i5-8400H
4C 8T @ 3.70 GHz |
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Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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Intel Core i5-8400H
4C 8T @ 4.20 GHz |
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Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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Intel Core i5-8400H
4C 8T @ 3.70 GHz |
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Intel Core i7-3970X
6C 12T @ 4.00 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 i5-8400H
4C 8T @ 3.70 GHz |
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Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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Cinebench R15 (Single-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. 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 i5-8400H
4C 8T @ 4.20 GHz |
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Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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Cinebench R15 (Multi-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Core i5-8400H
4C 8T @ 3.70 GHz |
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Intel Core i7-3970X
6C 12T @ 4.00 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 i5-8400H
Intel HD Graphics 630 @ 1.10 GHz |
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Intel Core i7-3970X
@ 0.00 GHz |
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CPU-Z Benchmark 17 (Multi-Core)
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
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Intel Core i5-8400H
4C 8T @ 2.50 GHz |
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Intel Core i7-3970X
6C 12T @ 3.50 GHz |
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Devices using this processor |
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| Intel Core i5-8400H | Intel Core i7-3970X |
| Unknown | Unknown |
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