Note: The information shown below is based on rumors and unoffical information. Technical details or benchmark results may be different in the final version of this processor. |
AMD Ryzen 9 7845HX | AMD EPYC 9555 | |
CPU comparisonAMD Ryzen 9 7845HX or AMD EPYC 9555 - 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 AMD Ryzen 9 7845HX has 12 cores with 24 threads and clocks with a maximum frequency of 5.20 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 7845HX was released in Q1/2023. The AMD EPYC 9555 has 64 cores with 128 threads and clocks with a maximum frequency of 3.30 GHz. The CPU supports up to 6144 GB of memory in 12 memory channels. The AMD EPYC 9555 was released in Q4/2024. |
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AMD Ryzen 9 (40) | Family | AMD EPYC (129) |
AMD Ryzen 7045 (6) | CPU group | AMD EPYC 9005 (21) |
6 | Generation | 5 |
Dragon Range (Zen 4) | Architecture | Turin (Zen 5 / Zen 5c) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | AMD EPYC 9554 |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 7845HX is a 12 core processor with a clock frequency of 3.00 GHz (5.20 GHz). The AMD EPYC 9555 has 64 CPU cores with a clock frequency of 3.30 GHz. |
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AMD Ryzen 9 7845HX | Characteristic | AMD EPYC 9555 |
12 | Cores | 64 |
24 | Threads | 128 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | No |
3.00 GHz | Frequency | 3.30 GHz |
5.20 GHz | Turbo Frequency (1 Core) | -- |
-- | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)The 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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AMD Radeon 610M | GPU | no iGPU |
0.40 GHz | GPU frequency | -- |
2.20 GHz | GPU (Turbo) | -- |
9 | GPU Generation | -- |
6 nm | Technology | |
3 | Max. displays | |
2 | Compute units | -- |
128 | Shader | -- |
Yes | Hardware Raytracing | No |
No | Frame Generation | No |
8 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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AMD Radeon 610M | 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 |
Decode | Codec AV1 | No |
Decode / Encode | Codec AVC | No |
Decode | Codec VC-1 | No |
Decode / Encode | Codec JPEG | No |
Memory & PCIeThe AMD Ryzen 9 7845HX supports a maximum of 128 GB of memory in 2 memory channels. The AMD EPYC 9555 can connect up to 6144 GB of memory in 12 memory channels. |
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AMD Ryzen 9 7845HX | Characteristic | AMD EPYC 9555 |
DDR5-5200 | Memory | DDR5-6000 |
128 GB | Max. Memory | 6144 GB |
2 (Dual Channel) | Memory channels | 12 |
83.2 GB/s | Max. Bandwidth | 480.0 GB/s |
Yes | ECC | Yes |
12.00 MB | L2 Cache | -- |
64.00 MB | L3 Cache | 256.00 MB |
5.0 | PCIe version | 5.0 |
28 | PCIe lanes | 128 |
110.3 GB/s | PCIe Bandwidth | 504.1 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 9 7845HX has a TDP of 55 W, that of the AMD EPYC 9555 is 360 W. |
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AMD Ryzen 9 7845HX | Characteristic | AMD EPYC 9555 |
55 W | TDP (PL1 / PBP) | 360 W |
-- | TDP (PL2) | -- |
75 W | TDP up | -- |
45 W | TDP down | -- |
100 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen 9 7845HX has a 76.00 MB cache, while the AMD EPYC 9555 cache has a total of 256.00 MB. |
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AMD Ryzen 9 7845HX | Characteristic | AMD EPYC 9555 |
5 nm | Technology | 4 nm |
Chiplet | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI |
FL1 | Socket | SP5 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | Windows Server 2022, Linux, Windows 11 |
Q1/2023 | Release date | Q4/2024 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz |
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AMD EPYC 9555
64C 128T @ 3.30 GHzNot verified |
AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
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AMD EPYC 9555
64C 128T @ 3.30 GHzNot verified |
AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz |
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AMD EPYC 9555
64C 128T @ 3.30 GHzNot verified |
AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
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AMD EPYC 9555
64C 128T @ 3.30 GHzNot verified |
AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz |
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AMD EPYC 9555
64C 128T @ 3.30 GHzNot verified |
AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
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AMD EPYC 9555
64C 128T @ 3.30 GHzNot verified |
AMD Ryzen 9 7845HX
AMD Radeon 610M @ 2.20 GHz |
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AMD EPYC 9555
@ 0.00 GHzNot verified |
AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
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AMD EPYC 9555
64C 128T @ 3.30 GHzNot verified |
AMD Ryzen 9 7845HX
26,654 CB R23 MC @ 102 W |
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AMD EPYC 9555
3.30 GHz Not verified |
Devices using this processor |
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AMD Ryzen 9 7845HX | AMD EPYC 9555 |
Unknown | Unknown |