AMD Ryzen 9 8945HS | AMD EPYC 9454 | |
CPU comparisonAMD Ryzen 9 8945HS or AMD EPYC 9454 - 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 8945HS has 8 cores with 16 threads and clocks with a maximum frequency of 5.20 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 8945HS was released in Q1/2024. The AMD EPYC 9454 has 48 cores with 96 threads and clocks with a maximum frequency of 3.80 GHz. The CPU supports up to 6144 GB of memory in 12 memory channels. The AMD EPYC 9454 was released in Q4/2022. |
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AMD Ryzen 9 (40) | Family | AMD EPYC (129) |
AMD Ryzen 8040 (20) | CPU group | AMD EPYC 9004 (21) |
7 | Generation | 4 |
Hawk Point (Zen 4) | Architecture | Genoa / Genoa-X (Zen 4) |
Mobile | Segment | Desktop / Server |
AMD Ryzen 9 7940HS | Predecessor | -- |
AMD Ryzen AI 9 365 | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 8945HS has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 9 8945HS is 4.00 GHz (5.20 GHz) while the AMD EPYC 9454 has 48 CPU cores and 96 threads can calculate simultaneously. The clock frequency of the AMD EPYC 9454 is at 2.75 GHz (3.80 GHz). |
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AMD Ryzen 9 8945HS | Characteristic | AMD EPYC 9454 |
8 | Cores | 48 |
16 | Threads | 96 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
4.00 GHz | Frequency | 2.75 GHz |
5.20 GHz | Turbo Frequency (1 Core) | 3.80 GHz |
-- | Turbo Frequency (All Cores) | 3.65 GHz |
NPU AI performanceThe performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. |
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AMD Ryzen 9 8945HS | Characteristic | AMD EPYC 9454 |
AMD Ryzen™ AI | AI hardware | -- |
AMD Ryzen™ AI (XDNA) @ 16 TOPS | AI specifications | -- |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The AMD Ryzen 9 8945HS or AMD EPYC 9454 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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AMD Radeon 780M | GPU | no iGPU |
0.80 GHz | GPU frequency | -- |
2.80 GHz | GPU (Turbo) | -- |
3 | GPU Generation | -- |
4 nm | Technology | |
4 | Max. displays | |
12 | Compute units | -- |
768 | Shader | -- |
Yes | Hardware Raytracing | No |
AMD FSR | Frame Generation | No |
32 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 780M | 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 | Codec VP9 | No |
Decode | Codec VP8 | No |
Decode / Encode | Codec AV1 | No |
Decode | Codec AVC | No |
Decode | Codec VC-1 | No |
Decode / Encode | Codec JPEG | No |
Memory & PCIeThe AMD Ryzen 9 8945HS can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The AMD EPYC 9454 supports up to 6144 GB of memory in 12 memory channels and achieves a memory bandwidth of up to 460.8 GB/s. |
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AMD Ryzen 9 8945HS | Characteristic | AMD EPYC 9454 |
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | DDR5-4800 |
256 GB | Max. Memory | 6144 GB |
2 (Dual Channel) | Memory channels | 12 |
120.0 GB/s | Max. Bandwidth | 460.8 GB/s |
Yes | ECC | Yes |
8.00 MB | L2 Cache | 48.00 MB |
16.00 MB | L3 Cache | 256.00 MB |
4.0 | PCIe version | 5.0 |
20 | PCIe lanes | 128 |
39.4 GB/s | PCIe Bandwidth | 504.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 9 8945HS is 45 W, while the AMD EPYC 9454 has a TDP of 290 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 9 8945HS | Characteristic | AMD EPYC 9454 |
45 W | TDP (PL1 / PBP) | 290 W |
-- | TDP (PL2) | -- |
54 W | TDP up | 300 W |
35 W | TDP down | 240 W |
100 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen 9 8945HS is manufactured in 4 nm and has 24.00 MB cache. The AMD EPYC 9454 is manufactured in 5 nm and has a 304.00 MB cache. |
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AMD Ryzen 9 8945HS | Characteristic | AMD EPYC 9454 |
4 nm | Technology | 5 nm |
Monolithic | 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 |
FP8 | 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 |
Q1/2024 | Release date | Q4/2022 |
-- | Release price | 5225 $ |
show more data | show more data | |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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AMD EPYC 9454
48C 96T @ 3.80 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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AMD EPYC 9454
48C 96T @ 3.80 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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AMD EPYC 9454
48C 96T @ 3.80 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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AMD EPYC 9454
48C 96T @ 3.65 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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AMD EPYC 9454
48C 96T @ 3.80 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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AMD EPYC 9454
48C 96T @ 3.65 GHz |
AMD Ryzen 9 8945HS
AMD Radeon 780M @ 2.80 GHz |
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AMD EPYC 9454
@ 0.00 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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AMD EPYC 9454
48C 96T @ 3.65 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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AMD EPYC 9454
48C 96T @ 2.75 GHz |
Devices using this processor |
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AMD Ryzen 9 8945HS | AMD EPYC 9454 |
Unknown | Unknown |