Intel Core i7-990X vs AMD EPYC 7443
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CPU comparison with benchmarks
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| Intel Core i7-990X | AMD EPYC 7443 | |
CPU comparisonIntel Core i7-990X or AMD EPYC 7443 - 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 i7-990X has 6 cores with 12 threads and clocks with a maximum frequency of 3.73 GHz. Up to 24 GB of memory is supported in 3 memory channels. The Intel Core i7-990X was released in Q1/2011. The AMD EPYC 7443 has 24 cores with 48 threads and clocks with a maximum frequency of 4.00 GHz. The CPU supports up to 4096 GB of memory in 8 memory channels. The AMD EPYC 7443 was released in Q1/2021. |
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| Intel Core i7 Extreme Edition (24) | Family | AMD EPYC (129) |
| Intel Core i7 900 (4) | CPU group | AMD EPYC 7003 (29) |
| 1 | Generation | 3 |
| Gulftown | Architecture | Milan (Zen 3) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i7-990X has 6 CPU cores and can calculate 12 threads in parallel. The clock frequency of the Intel Core i7-990X is 3.46 GHz (3.73 GHz) while the AMD EPYC 7443 has 24 CPU cores and 48 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7443 is at 2.85 GHz (4.00 GHz). |
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| Intel Core i7-990X | Characteristic | AMD EPYC 7443 |
| 6 | Cores | 24 |
| 12 | Threads | 48 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| Yes | Overclocking ? | No |
| 3.46 GHz | Frequency | 2.85 GHz |
| 3.73 GHz | Turbo Frequency (1 Core) | 4.00 GHz |
| -- | Turbo Frequency (All Cores) | 3.60 GHz |
Memory & PCIeThe Intel Core i7-990X can use up to 24 GB of memory in 3 memory channels. The maximum memory bandwidth is 25.6 GB/s. The AMD EPYC 7443 supports up to 4096 GB of memory in 8 memory channels and achieves a memory bandwidth of up to 204.8 GB/s. |
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| Intel Core i7-990X | Characteristic | AMD EPYC 7443 |
| DDR3-1066 | Memory | DDR4-3200 |
| 24 GB | Max. Memory | 4096 GB |
| 3 | Memory channels | 8 (Octa Channel) |
| 25.6 GB/s | Max. Bandwidth | 204.8 GB/s |
| No | ECC | Yes |
| 1.50 MB | L2 Cache | -- |
| 12.00 MB | L3 Cache | 128.00 MB |
| -- | PCIe version | 4.0 |
| -- | PCIe lanes | 128 |
| -- | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i7-990X is 130 W, while the AMD EPYC 7443 has a TDP of 200 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Intel Core i7-990X | Characteristic | AMD EPYC 7443 |
| 130 W | TDP (PL1 / PBP) | 200 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | 165 W |
| -- | Tjunction max. | -- |
Technical detailsThe Intel Core i7-990X is manufactured in 32 nm and has 13.50 MB cache. The AMD EPYC 7443 is manufactured in 7 nm and has a 128.00 MB cache. |
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| Intel Core i7-990X | Characteristic | AMD EPYC 7443 |
| 32 nm | Technology | 7 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| LGA 1366 | Socket | SP3 |
| VT-x, VT-x EPT | Virtualization | AMD-V, SVM |
| No | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q1/2011 | Release date | Q1/2021 |
| 1059 $ | Release price | 2010 $ |
| show more data | show more data | |
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6C 12T @ 3.46 GHz (3.73 GHz) buy now on Amazon and save!
24C 48T @ 2.85 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 2 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 i7-990X
6C 12T @ 3.73 GHz |
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AMD EPYC 7443
24C 48T @ 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 i7-990X
6C 12T @ 3.46 GHz |
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AMD EPYC 7443
24C 48T @ 3.60 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 i7-990X
6C 12T @ 3.73 GHz |
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AMD EPYC 7443
24C 48T @ 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 i7-990X
6C 12T @ 3.46 GHz |
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AMD EPYC 7443
24C 48T @ 3.60 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 i7-990X
6C 12T @ 3.46 GHz |
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AMD EPYC 7443
24C 48T @ 3.60 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 i7-990X
6C 12T @ 3.46 GHz |
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AMD EPYC 7443
24C 48T @ 2.85 GHz |
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Devices using this processor |
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| Intel Core i7-990X | AMD EPYC 7443 |
| Unknown | Unknown |
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