AMD EPYC 9745 vs AMD FX-4320

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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.

CPU comparison with benchmarks


AMD EPYC 9745 CPU1 vs CPU2 AMD FX-4320
AMD EPYC 9745 AMD FX-4320

CPU comparison

In this CPU comparison, we compare the AMD EPYC 9745 and the AMD FX-4320 and use benchmarks to check which processor is faster.

We compare the AMD EPYC 9745 128 core processor released in Q4/2024 with the AMD FX-4320 which has 4 CPU cores and was introduced in Q4/2012.
AMD EPYC (129) Family AMD FX (30)
AMD EPYC 9005 (21) CPU group AMD FX-4300 (3)
5 Generation 2
Turin (Zen 5 / Zen 5c) Architecture Vishera (Bulldozer)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD EPYC 9745 is a 128 core processor with a clock frequency of 2.30 GHz. The processor can compute 256 threads at the same time. The AMD FX-4320 clocks with 4.00 GHz (4.20 GHz), has 4 CPU cores and can calculate 4 threads in parallel.

AMD EPYC 9745 Characteristic AMD FX-4320
128 Cores 4
256 Threads 4
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? Yes
2.30 GHz Frequency 4.00 GHz
-- Turbo Frequency (1 Core) 4.20 GHz
-- Turbo Frequency (All Cores) 4.20 GHz

NPU AI performance

The 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.

AMD EPYC 9745 Characteristic AMD FX-4320
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

Hardware codec support

A 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.

no iGPU GPU no iGPU
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 & PCIe

Up to 6144 GB of memory in a maximum of 12 memory channels is supported by the AMD EPYC 9745, while the AMD FX-4320 supports a maximum of GB of memory with a maximum memory bandwidth of 29.9 GB/s enabled.

AMD EPYC 9745 Characteristic AMD FX-4320
DDR5-6000 Memory DDR3-1866
6144 GB Max. Memory
12 Memory channels 2 (Dual Channel)
480.0 GB/s Max. Bandwidth 29.9 GB/s
Yes ECC Yes
-- L2 Cache --
512.00 MB L3 Cache 4.00 MB
5.0 PCIe version --
128 PCIe lanes --
504.1 GB/s PCIe Bandwidth --

Thermal Management

The AMD EPYC 9745 has a TDP of 400 W. The TDP of the AMD FX-4320 is 95 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD EPYC 9745 Characteristic AMD FX-4320
400 W TDP (PL1 / PBP) 95 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
100 °C Tjunction max. --

Technical details

The AMD EPYC 9745 has 512.00 MB cache and is manufactured in 4 nm. The cache of AMD FX-4320 is at 4.00 MB. The processor is manufactured in 32 nm.

AMD EPYC 9745 Characteristic AMD FX-4320
4 nm Technology 32 nm
Chiplet Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI ISA extensions SSE4.1, SSE4.2, AVX, FMA3, FMA4
SP5 Socket AM3+
AMD-V, SVM Virtualization AMD-V
Yes AES-NI Yes
Windows Server 2022, Linux, Windows 11 Operating systems Windows 10, Linux
Q4/2024 Release date Q4/2012
-- Release price --
show more data show more data


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Here you can rate the AMD FX-4320 to help other visitors make their purchasing decisions. The average rating is 4.0 stars (1 ratings). Rate now:


Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD EPYC 9745 AMD EPYC 9745
128C 256T @ 2.30 GHzNot verified
0 (0%)
AMD FX-4320 AMD FX-4320
4C 4T @ 4.20 GHz
553 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD EPYC 9745 AMD EPYC 9745
128C 256T @ 2.30 GHzNot verified
0 (0%)
AMD FX-4320 AMD FX-4320
4C 4T @ 4.20 GHz
1481 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD EPYC 9745 AMD EPYC 9745
128C 256T @ 2.30 GHzNot verified
0 (0%)
AMD FX-4320 AMD FX-4320
4C 4T @ 4.20 GHz
5011 (100%)

Devices using this processor

AMD EPYC 9745 AMD FX-4320
Unknown Unknown

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