Intel Core i7-7800X vs AMD EPYC 7642
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CPU comparison with benchmarks
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| Intel Core i7-7800X | AMD EPYC 7642 | |
CPU comparisonIntel Core i7-7800X or AMD EPYC 7642 - 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 i7-7800X has 6 cores with 12 threads and clocks with a maximum frequency of 4.20 GHz. Up to 128 GB of memory is supported in 4 memory channels. The Intel Core i7-7800X was released in Q2/2017. The AMD EPYC 7642 has 48 cores with 96 threads and clocks with a maximum frequency of 3.30 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7642 was released in Q3/2019. |
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| Intel Core i7 (298) | Family | AMD EPYC (129) |
| Intel Core i 7000X (9) | CPU group | AMD EPYC 7002 (24) |
| 7 | Generation | 2 |
| Skylake X | Architecture | Rome (Zen 2) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | AMD EPYC 7643 |
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CPU Cores and Base FrequencyThe Intel Core i7-7800X is a 6 core processor with a clock frequency of 3.50 GHz (4.20 GHz). The AMD EPYC 7642 has 48 CPU cores with a clock frequency of 2.30 GHz (3.30 GHz). |
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| Intel Core i7-7800X | Characteristic | AMD EPYC 7642 |
| 6 | Cores | 48 |
| 12 | Threads | 96 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| Yes | Overclocking ? | No |
| 3.50 GHz | Frequency | 2.30 GHz |
| 4.20 GHz | Turbo Frequency (1 Core) | 3.30 GHz |
| 3.90 GHz | Turbo Frequency (All Cores) | 2.80 GHz |
Memory & PCIeThe Intel Core i7-7800X supports a maximum of 128 GB of memory in 4 memory channels. The AMD EPYC 7642 can connect up to GB of memory in 8 memory channels. |
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| Intel Core i7-7800X | Characteristic | AMD EPYC 7642 |
| DDR4-2400 | Memory | DDR4-3200 |
| 128 GB | Max. Memory | |
| 4 (Quad Channel) | Memory channels | 8 (Octa Channel) |
| 76.8 GB/s | Max. Bandwidth | 51.2 GB/s |
| No | ECC | Yes |
| -- | L2 Cache | -- |
| 8.00 MB | L3 Cache | 256.00 MB |
| 3.0 | PCIe version | 4.0 |
| 28 | PCIe lanes | 128 |
| 27.6 GB/s | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i7-7800X has a TDP of 140 W, that of the AMD EPYC 7642 is 225 W. |
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| Intel Core i7-7800X | Characteristic | AMD EPYC 7642 |
| 140 W | TDP (PL1 / PBP) | 225 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe Intel Core i7-7800X has a 8.00 MB cache, while the AMD EPYC 7642 cache has a total of 256.00 MB. |
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| Intel Core i7-7800X | Characteristic | AMD EPYC 7642 |
| 14 nm | Technology | 7 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2, AVX-512 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| LGA 2066 | Socket | SP3 |
| VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q2/2017 | Release date | Q3/2019 |
| 485 $ | Release price | 8000 $ |
| show more data | show more data | |
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6C 12T @ 3.50 GHz (4.20 GHz) buy now on Amazon and save!
48C 96T @ 2.30 GHz (3.30 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 3 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 i7-7800X
6C 12T @ 4.20 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 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 i7-7800X
6C 12T @ 3.90 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 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 i7-7800X
6C 12T @ 4.20 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 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 i7-7800X
6C 12T @ 3.90 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
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Cinebench R20 (Single-Core)
Cinebench R20 is the successor of Cinebench R15 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 i7-7800X
6C 12T @ 4.20 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 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 i7-7800X
6C 12T @ 3.90 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
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Cinebench R20 (Multi-Core)
Cinebench R20 is the successor of Cinebench R15 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 i7-7800X
6C 12T @ 3.90 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 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 i7-7800X
6C 12T @ 3.50 GHz |
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AMD EPYC 7642
48C 96T @ 2.30 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 i7-7800X
6C 12T @ 4.20 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 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 i7-7800X
6C 12T @ 3.90 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
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Devices using this processor |
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| Intel Core i7-7800X | AMD EPYC 7642 |
| Unknown | Unknown |
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