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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. |
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AMD EPYC 9655 | UNISOC SC9863A | |
CPU comparisonAMD EPYC 9655 or UNISOC SC9863A - 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 EPYC 9655 has 96 cores with 192 threads and clocks with a maximum frequency of 2.70 GHz. Up to 6144 GB of memory is supported in 12 memory channels. The AMD EPYC 9655 was released in Q4/2024. The UNISOC SC9863A has 8 cores with 8 threads and clocks with a maximum frequency of 1.20 GHz. The CPU supports up to GB of memory in 0 memory channels. The UNISOC SC9863A was released in Q2/2019. |
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AMD EPYC (129) | Family | UNISOC 4G (10) |
AMD EPYC 9005 (21) | CPU group | UNISOC 4G 28nm (2) |
5 | Generation | 0 |
Turin (Zen 5 / Zen 5c) | Architecture | -- |
Desktop / Server | Segment | Mobile |
AMD EPYC 9654 | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 9655 has 96 CPU cores and can calculate 192 threads in parallel. The clock frequency of the AMD EPYC 9655 is 2.70 GHz while the UNISOC SC9863A has 8 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the UNISOC SC9863A is at 1.20 GHz. |
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AMD EPYC 9655 | Characteristic | UNISOC SC9863A |
96 | Cores | 8 |
192 | Threads | 8 |
normal | Core architecture | hybrid (big.LITTLE) |
Yes | Hyperthreading | No |
No | Overclocking ? | No |
2.70 GHz 96x Zen 5 |
A-Core | 1.20 GHz 4x Cortex-A55 |
-- | B-Core | 1.60 GHz 4x Cortex-A55 |
Integrated graphics (iGPU)The AMD EPYC 9655 or UNISOC SC9863A 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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no iGPU | GPU | PowerVR GE8322 |
GPU frequency | 0.55 GHz | |
-- | GPU (Turbo) | -- |
-- | GPU Generation | -- |
Technology | 20 nm | |
Max. displays | 1 | |
-- | Compute units | 1 |
-- | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | -- |
-- | DirectX Version | 10 |
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 | PowerVR GE8322 |
No | Codec h265 / HEVC (8 bit) | No |
No | Codec h265 / HEVC (10 bit) | No |
No | Codec h264 | No |
No | Codec VP9 | No |
No | Codec VP8 | No |
No | Codec AV1 | No |
No | Codec AVC | No |
No | Codec VC-1 | No |
No | Codec JPEG | No |
Memory & PCIeThe AMD EPYC 9655 can use up to 6144 GB of memory in 12 memory channels. The maximum memory bandwidth is 480.0 GB/s. The UNISOC SC9863A supports up to GB of memory in 0 memory channels and achieves a memory bandwidth of up to --. |
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AMD EPYC 9655 | Characteristic | UNISOC SC9863A |
DDR5-6000 | Memory | LPDDR4X, LPDDR4, LPDDR3 |
6144 GB | Max. Memory | |
12 | Memory channels | 0 |
480.0 GB/s | Max. Bandwidth | -- |
Yes | ECC | No |
-- | L2 Cache | -- |
384.00 MB | L3 Cache | -- |
5.0 | PCIe version | -- |
128 | PCIe lanes | -- |
504.1 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD EPYC 9655 is 400 W, while the UNISOC SC9863A has a TDP of --. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD EPYC 9655 | Characteristic | UNISOC SC9863A |
400 W | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
100 °C | Tjunction max. | -- |
Technical detailsThe AMD EPYC 9655 is manufactured in 4 nm and has 384.00 MB cache. The UNISOC SC9863A is manufactured in 28 nm and has a 0.00 MB cache. |
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AMD EPYC 9655 | Characteristic | UNISOC SC9863A |
4 nm | Technology | 28 nm |
Chiplet | Chip design | Unknown |
x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI | ISA extensions | -- |
SP5 | Socket | -- |
AMD-V, SVM | Virtualization | None |
Yes | AES-NI | No |
Windows Server 2022, Linux, Windows 11 | Operating systems | Android |
Q4/2024 | Release date | Q2/2019 |
-- | Release price | -- |
show more data | show more data | |
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AMD EPYC 9655
96C 192T @ 2.70 GHzNot verified |
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UNISOC SC9863A
8C 8T @ 1.20 GHz |
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AMD EPYC 9655
96C 192T @ 2.70 GHzNot verified |
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UNISOC SC9863A
8C 8T @ 1.20 GHz |
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AMD EPYC 9655
@ 0.00 GHzNot verified |
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UNISOC SC9863A
PowerVR GE8322 @ 0.55 GHz |
Devices using this processor |
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AMD EPYC 9655 | UNISOC SC9863A |
Unknown | Unknown |