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AMD EPYC 7742 | AMD Ryzen Threadripper 3990X | |
CPU comparisonIn this CPU comparison, we compare the AMD EPYC 7742 and the AMD Ryzen Threadripper 3990X and use benchmarks to check which processor is faster.
We compare the AMD EPYC 7742 64 core processor released in Q3/2019 with the AMD Ryzen Threadripper 3990X which has 64 CPU cores and was introduced in Q1/2020. |
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AMD EPYC | Family | AMD Ryzen Threadripper |
AMD EPYC 7002 | CPU group | AMD Ryzen Threadripper 3000 |
2 | Generation | 3 |
Rome (Zen 2) | Architecture | Castle Peak (Zen 2) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | AMD Ryzen Threadripper 2990WX |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 7742 is a 64 core processor with a clock frequency of 2.25 GHz (3.40 GHz). The processor can compute 128 threads at the same time. The AMD Ryzen Threadripper 3990X clocks with --, has 64 CPU cores and can calculate 128 threads in parallel. |
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64 | Cores | 64 |
128 | Threads | 128 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | Yes |
2.25 GHz | Frequency | 2.90 GHz |
3.40 GHz | Turbo Frequency (1 Core) | 4.30 GHz |
2.80 GHz | Turbo Frequency (All Cores) | 3.20 GHz |
Memory & PCIeUp to GB of memory in a maximum of 8 memory channels is supported by the AMD EPYC 7742, while the AMD Ryzen Threadripper 3990X supports a maximum of 2048 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled. |
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DDR4-3200 | Memory | DDR4-3200 |
Max. Memory | 2048 GB | |
8 (Octa Channel) | Memory channels | 4 (Quad Channel) |
51.2 GB/s | Max. Bandwidth | 51.2 GB/s |
Yes | ECC | Yes |
L2 Cache | 32.00 MB | |
256.00 MB | L3 Cache | 256.00 MB |
4.0 | PCIe version | 4.0 |
128 | PCIe lanes | 64 |
252.0 GB/s | PCIe Bandwidth | 126.0 GB/s |
Thermal ManagementThe AMD EPYC 7742 has a TDP of 225 W. The TDP of the AMD Ryzen Threadripper 3990X is 280 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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225 W | TDP (PL1 / PBP) | 280 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | 95 °C |
Technical detailsThe AMD EPYC 7742 has 256.00 MB cache and is manufactured in 7 nm. The cache of AMD Ryzen Threadripper 3990X is at 288.00 MB. The processor is manufactured in 7 nm. |
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7 nm | Technology | 7 nm |
Chiplet | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
SP3 | Socket | TRX4 (sTRX4) |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q3/2019 | Release date | Q1/2020 |
9000 $ | Release price | 3990 $ |
show more data | show more data | |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 4.30 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 4.30 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 4.30 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 4.30 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 4.30 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 4.30 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz |
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AMD EPYC 7742
64C 128T @ 2.25 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 2.90 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 4.30 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz |
Devices using this processor |
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AMD EPYC 7742 | AMD Ryzen Threadripper 3990X |
Unknown | Unknown |