Note: The information shown below is based on a pre-sample. Technical details or benchmark results may be different in the final version of this processor. |
AMD EPYC 9355 | AMD Ryzen 9 7945HX | |
CPU comparisonIn this CPU comparison, we compare the AMD EPYC 9355 and the AMD Ryzen 9 7945HX and use benchmarks to check which processor is faster.
We compare the AMD EPYC 9355 32 core processor released in Q4/2024 with the AMD Ryzen 9 7945HX which has 16 CPU cores and was introduced in Q1/2023. |
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AMD EPYC (129) | Family | AMD Ryzen 9 (35) |
AMD EPYC 9005 (21) | CPU group | AMD Ryzen 7045 (6) |
5 | Generation | 6 |
Turin (Zen 5 / Zen 5c) | Architecture | Dragon Range (Zen 4) |
Desktop / Server | Segment | Mobile |
AMD EPYC 9354 | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 9355 is a 32 core processor with a clock frequency of 3.50 GHz. The processor can compute 64 threads at the same time. The AMD Ryzen 9 7945HX clocks with 2.50 GHz (5.40 GHz), has 16 CPU cores and can calculate 32 threads in parallel. |
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AMD EPYC 9355 | Characteristic | AMD Ryzen 9 7945HX |
32 | Cores | 16 |
64 | Threads | 32 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | Yes |
3.50 GHz | Frequency | 2.50 GHz |
-- | Turbo Frequency (1 Core) | 5.40 GHz |
-- | Turbo Frequency (All Cores) | -- |
Internal GraphicsGraphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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no iGPU | GPU | AMD Radeon 610M |
GPU frequency | 0.40 GHz | |
-- | GPU (Turbo) | 2.20 GHz |
-- | GPU Generation | 9 |
Technology | 6 nm | |
Max. displays | 3 | |
-- | Compute units | 2 |
-- | Shader | 128 |
No | Hardware Raytracing | Yes |
No | Frame Generation | No |
-- | Max. GPU Memory | 8 GB |
-- | DirectX Version | 12 |
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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no iGPU | GPU | AMD Radeon 610M |
No | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
No | Codec h264 | Decode / Encode |
No | Codec VP9 | Decode / Encode |
No | Codec VP8 | Decode / Encode |
No | Codec AV1 | Decode |
No | Codec AVC | Decode / Encode |
No | Codec VC-1 | Decode |
No | Codec JPEG | Decode / Encode |
Memory & PCIeUp to 6144 GB of memory in a maximum of 12 memory channels is supported by the AMD EPYC 9355, while the AMD Ryzen 9 7945HX supports a maximum of 128 GB of memory with a maximum memory bandwidth of 83.2 GB/s enabled. |
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AMD EPYC 9355 | Characteristic | AMD Ryzen 9 7945HX |
DDR5-6000 | Memory | DDR5-5200 |
6144 GB | Max. Memory | 128 GB |
12 | Memory channels | 2 (Dual Channel) |
480.0 GB/s | Max. Bandwidth | 83.2 GB/s |
Yes | ECC | Yes |
-- | L2 Cache | 16.00 MB |
128.00 MB | L3 Cache | 64.00 MB |
5.0 | PCIe version | 5.0 |
128 | PCIe lanes | 28 |
504.1 GB/s | PCIe Bandwidth | 110.3 GB/s |
Thermal ManagementThe AMD EPYC 9355 has a TDP of 280 W. The TDP of the AMD Ryzen 9 7945HX is 55 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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AMD EPYC 9355 | Characteristic | AMD Ryzen 9 7945HX |
280 W | TDP (PL1 / PBP) | 55 W |
-- | TDP (PL2) | -- |
-- | TDP up | 75 W |
-- | TDP down | -- |
100 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD EPYC 9355 has 128.00 MB cache and is manufactured in 4 nm. The cache of AMD Ryzen 9 7945HX is at 80.00 MB. The processor is manufactured in 5 nm. |
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AMD EPYC 9355 | Characteristic | AMD Ryzen 9 7945HX |
4 nm | Technology | 5 nm |
Chiplet | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI | ISA extensions | SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 |
SP5 | Socket | FL1 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows Server 2022, Linux, Windows 11 | Operating systems | Windows 10, Windows 11, Linux |
Q4/2024 | Release date | Q1/2023 |
-- | Release price | -- |
show more data | show more data | |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 5.40 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 5.40 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 5.40 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 2.50 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 5.40 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 2.50 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 5.40 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 2.50 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 5.40 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 2.50 GHz |
AMD EPYC 9355
@ 0.00 GHzNot verified |
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AMD Ryzen 9 7945HX
AMD Radeon 610M @ 2.20 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 2.50 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 2.50 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 5.40 GHz |
AMD EPYC 9355
32C 64T @ 3.50 GHzNot verified |
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AMD Ryzen 9 7945HX
16C 32T @ 2.50 GHz |
AMD EPYC 9355
3.50 GHz Not verified |
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AMD Ryzen 9 7945HX
32,788 CB R23 MC @ 134 W |
Devices using this processor |
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AMD EPYC 9355 | AMD Ryzen 9 7945HX |
Unknown | Unknown |