AMD Ryzen 9 7900 | AMD EPYC 9734 | |
CPU comparisonAMD Ryzen 9 7900 or AMD EPYC 9734 - 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 7900 has 12 cores with 24 threads and clocks with a maximum frequency of 5.40 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 7900 was released in Q1/2023. The AMD EPYC 9734 has 112 cores with 224 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to 6144 GB of memory in 12 memory channels. The AMD EPYC 9734 was released in Q2/2023. |
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AMD Ryzen 9 (40) | Family | AMD EPYC (129) |
AMD Ryzen 7000 (14) | CPU group | AMD EPYC 8004/9004 (15) |
6 | Generation | 4 |
Raphael (Zen 4) | Architecture | Bergamo/Siena (Zen 4c) |
Desktop / Server | Segment | Desktop / Server |
AMD Ryzen 9 5900 | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 7900 has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the AMD Ryzen 9 7900 is 3.70 GHz (5.40 GHz) while the AMD EPYC 9734 has 112 CPU cores and 224 threads can calculate simultaneously. The clock frequency of the AMD EPYC 9734 is at 2.20 GHz (3.00 GHz). |
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AMD Ryzen 9 7900 | Characteristic | AMD EPYC 9734 |
12 | Cores | 112 |
24 | Threads | 224 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | No |
3.70 GHz | Frequency | 2.20 GHz |
5.40 GHz | Turbo Frequency (1 Core) | 3.00 GHz |
4.70 GHz | Turbo Frequency (All Cores) | 3.00 GHz |
Integrated graphics (iGPU)The AMD Ryzen 9 7900 or AMD EPYC 9734 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 Graphics (Raphael) | GPU | no iGPU |
0.40 GHz | GPU frequency | -- |
2.20 GHz | GPU (Turbo) | -- |
9 | GPU Generation | -- |
5 nm | Technology | |
3 | Max. displays | |
2 | Compute units | -- |
128 | Shader | -- |
No | 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 Graphics (Raphael) | 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 7900 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 83.2 GB/s. The AMD EPYC 9734 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 7900 | Characteristic | AMD EPYC 9734 |
DDR5-5200 | Memory | DDR5-4800 |
128 GB | Max. Memory | 6144 GB |
2 (Dual Channel) | Memory channels | 12 |
83.2 GB/s | Max. Bandwidth | 460.8 GB/s |
Yes | ECC | Yes |
12.00 MB | L2 Cache | -- |
64.00 MB | L3 Cache | 256.00 MB |
5.0 | PCIe version | 5.0 |
24 | PCIe lanes | 128 |
94.5 GB/s | PCIe Bandwidth | 504.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 9 7900 is 65 W, while the AMD EPYC 9734 has a TDP of 340 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 9 7900 | Characteristic | AMD EPYC 9734 |
65 W | TDP (PL1 / PBP) | 340 W |
88 W | TDP (PL2) | -- |
170 W | TDP up | 400 W |
-- | TDP down | 320 W |
95 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen 9 7900 is manufactured in 5 nm and has 76.00 MB cache. The AMD EPYC 9734 is manufactured in 5 nm and has a 256.00 MB cache. |
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AMD Ryzen 9 7900 | Characteristic | AMD EPYC 9734 |
5 nm | Technology | 5 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 |
AM5 (LGA 1718) | 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 | Q2/2023 |
-- | Release price | 11900 $ |
show more data | show more data | |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
AMD Radeon Graphics (Raphael) @ 2.20 GHz |
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AMD EPYC 9734
@ 0.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD EPYC 9734
112C 224T @ 3.00 GHz |
AMD Ryzen 9 7900
28,905 CB R23 MC @ 90 W |
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AMD EPYC 9734
2.20 GHz |
Devices using this processor |
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AMD Ryzen 9 7900 | AMD EPYC 9734 |
Unknown | Unknown |