Qualcomm Snapdragon 855 Plus | AMD EPYC 9454P | |
CPU comparisonQualcomm Snapdragon 855 Plus or AMD EPYC 9454P - 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 Qualcomm Snapdragon 855 Plus has 8 cores with 8 threads and clocks with a maximum frequency of 2.96 GHz. Up to 12 GB of memory is supported in 4 memory channels. The Qualcomm Snapdragon 855 Plus was released in Q4/2018. The AMD EPYC 9454P 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 9454P was released in Q4/2022. |
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Qualcomm Snapdragon (104) | Family | AMD EPYC (129) |
Qualcomm Snapdragon 855/860 (3) | CPU group | AMD EPYC 9004 (21) |
6 | Generation | 4 |
Kryo 485 | Architecture | Genoa / Genoa-X (Zen 4) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
Qualcomm Snapdragon 860 | Successor | -- |
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CPU Cores and Base FrequencyThe Qualcomm Snapdragon 855 Plus has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Qualcomm Snapdragon 855 Plus is 2.96 GHz while the AMD EPYC 9454P has 48 CPU cores and 96 threads can calculate simultaneously. The clock frequency of the AMD EPYC 9454P is at 2.75 GHz (3.80 GHz). |
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Qualcomm Snapdragon 855 Plus | Characteristic | AMD EPYC 9454P |
8 | Cores | 48 |
8 | Threads | 96 |
hybrid (Prime / big.LITTLE) | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
2.96 GHz 1x Kryo 485 Prime |
A-Core | 2.75 GHz (3.80 GHz) 48x Zen 4 |
2.42 GHz 3x Kryo 485 Gold |
B-Core | -- |
1.80 GHz 4x Kryo 485 Silver |
C-Core | -- |
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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Qualcomm Snapdragon 855 Plus | Characteristic | AMD EPYC 9454P |
Qualcomm AI engine | AI hardware | -- |
Hexagon 690 @ 7 TOPS | AI specifications | -- |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The Qualcomm Snapdragon 855 Plus or AMD EPYC 9454P 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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Qualcomm Adreno 640 | GPU | no iGPU |
0.25 GHz | GPU frequency | -- |
0.68 GHz | GPU (Turbo) | -- |
5 | GPU Generation | -- |
7 nm | Technology | |
1 | Max. displays | |
4 | Compute units | -- |
384 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
4 GB | Max. GPU Memory | -- |
12.0 | 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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Qualcomm Adreno 640 | 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 |
No | Codec AV1 | No |
No | Codec AVC | No |
No | Codec VC-1 | No |
No | Codec JPEG | No |
Memory & PCIeThe Qualcomm Snapdragon 855 Plus can use up to 12 GB of memory in 4 memory channels. The maximum memory bandwidth is 34.1 GB/s. The AMD EPYC 9454P 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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Qualcomm Snapdragon 855 Plus | Characteristic | AMD EPYC 9454P |
LPDDR4X-4266 | Memory | DDR5-4800 |
12 GB | Max. Memory | 6144 GB |
4 (Quad Channel) | Memory channels | 12 |
34.1 GB/s | Max. Bandwidth | 460.8 GB/s |
No | ECC | Yes |
2.00 MB | L2 Cache | 48.00 MB |
3.00 MB | L3 Cache | 256.00 MB |
-- | PCIe version | 5.0 |
-- | PCIe lanes | 128 |
-- | PCIe Bandwidth | 504.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Qualcomm Snapdragon 855 Plus is --, while the AMD EPYC 9454P 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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Qualcomm Snapdragon 855 Plus | Characteristic | AMD EPYC 9454P |
-- | TDP (PL1 / PBP) | 290 W |
-- | TDP (PL2) | -- |
-- | TDP up | 300 W |
-- | TDP down | 240 W |
-- | Tjunction max. | 100 °C |
Technical detailsThe Qualcomm Snapdragon 855 Plus is manufactured in 7 nm and has 5.00 MB cache. The AMD EPYC 9454P is manufactured in 5 nm and has a 304.00 MB cache. |
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Qualcomm Snapdragon 855 Plus | Characteristic | AMD EPYC 9454P |
7 nm | Technology | 5 nm |
Chiplet | Chip design | Chiplet |
Armv8-A (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
-- | ISA extensions | SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI |
-- | Socket | SP5 |
None | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Android | Operating systems | Windows Server 2022, Linux, Windows 11 |
Q4/2018 | Release date | Q4/2022 |
-- | Release price | 4598 $ |
show more data | show more data | |
Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
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AMD EPYC 9454P
48C 96T @ 3.80 GHz |
Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
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AMD EPYC 9454P
48C 96T @ 3.65 GHz |
Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
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AMD EPYC 9454P
48C 96T @ 3.80 GHz |
Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
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AMD EPYC 9454P
48C 96T @ 3.65 GHz |
Qualcomm Snapdragon 855 Plus
Qualcomm Adreno 640 @ 0.68 GHz |
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AMD EPYC 9454P
@ 0.00 GHz |
Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
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AMD EPYC 9454P
48C 96T @ 2.75 GHz |
Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
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AMD EPYC 9454P
48C 96T @ 2.75 GHz |
Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
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AMD EPYC 9454P
48C 96T @ 3.65 GHz |
Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
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AMD EPYC 9454P
48C 96T @ 2.75 GHz |
Devices using this processor |
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Qualcomm Snapdragon 855 Plus | AMD EPYC 9454P |
OnePlus 7T OnePlus 7T Pro 5G OnePlus 7 Pro OnePlus 7T Pro Xiaomi Redmi K20 Pro Premium Edition Realme X2 Pro |
Unknown |