AMD EPYC 7643 Benchmark, Test and specs

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The AMD EPYC 7643 has 48 cores with 96 threads and is based on the 3. gen of the AMD EPYC series. The processor uses a mainboard with the SP3 socket and was released in Q1/2021. The AMD EPYC 7643 scores 1,319 points in the Geekbench 5 single-core benchmark. In the Geekbench 5 multi-core benchmark, the result is 36,850 points.
AMD EPYC 7643

CPU lineage

The segment in which we have classified the AMD EPYC 7643. Here you can see if it is a desktop processor or a mobile processor or which processor may be the successor of the AMD EPYC 7643.

Name: AMD EPYC 7643
Family: AMD EPYC (90)
CPU group: AMD EPYC 7003 (23)
Architecture: Milan (Zen 3)
Segment: Desktop / Server
Generation: 3
Predecessor: AMD EPYC 7642
Successor: --

CPU Cores and Base Frequency

The AMD EPYC 7643 has 48 CPU cores and can calculate 96 threads in parallel. The clock frequency of the AMD EPYC 7643 is 2.30 GHz (3.60 GHz). The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.

CPU Cores / Threads: 48 / 96
Core architecture: normal
Cores: 48x Zen 3
Hyperthreading / SMT: Yes
Overclocking: No
Frequency: 2.30 GHz
Turbo Frequency (1 Core): 3.60 GHz
Turbo Frequency (48 Cores): 3.40 GHz

Memory & PCIe

The processor can use up to 4096 GB memory in 8 (Octa Channel) memory channels. The maximum memory bandwidth is 51.2 GB/s. The memory type as well as the amount of memory can greatly affect the speed of the system.

Memory type: Memory bandwidth:
DDR4-3200
51.2 GB/s
Max. Memory: 4096 GB
Memory channels: 8 (Octa Channel)
ECC: Yes
PCIe: 4.0 x 128
PCIe Bandwidth: 252.0 GB/s

Thermal Management

The thermal design power (TDP for short) of the processor is 240 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. The TDP usually gives a rough idea of the actual power consumption of the CPU.

TDP (PL1 / PBP): 240 W
TDP (PL2): --
TDP up: --
TDP down: 225 W
Tjunction max.: --

Technical details

The AMD EPYC 7643 is made in 7 nm. The smaller the manufacturing process of a CPU, the more modern and energy-efficient it is. Overall, the processor has 256.00 MB cache. A large cache can greatly speed up the processor's speed in some cases such as games.

Technology: 7 nm
Chip design: Chiplet
Socket: SP3
L2-Cache: --
L3-Cache: 256.00 MB
AES-NI: Yes
Operating systems: Windows 10, Linux
Virtualization: AMD-V, SVM
Instruction set (ISA): x86-64 (64 bit)
ISA extensions: SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
Release date: Q1/2021
Release price: 4995 $
Part Number: --
Documents: Technical data sheet

Benchmark results

Verified Benchmark results
The benchmark results for the AMD EPYC 7643 have been carefully checked by us. We only publish benchmark results that have been created by us or that have been submitted by a visitor and then checked by a team member. All results are based on and fullfill our benchmark guidelines.


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.
Intel Core i5-11600T Intel Core i5-11600T
6C 12T @ 4.10 GHz
1326
Intel Xeon W-3375 Intel Xeon W-3375
38C 72T @ 4.00 GHz
1324
Intel Xeon E-2224 Intel Xeon E-2224
4C 4T @ 4.60 GHz
1322
AMD EPYC 7643 AMD EPYC 7643
48C 96T @ 3.60 GHz
1319
Intel Core i9-10880H Intel Core i9-10880H
8C 16T @ 5.10 GHz
1318
AMD Ryzen 5 5600U AMD Ryzen 5 5600U
6C 12T @ 4.20 GHz
1317
Intel Xeon E-2278G Intel Xeon E-2278G
8C 16T @ 5.00 GHz
1314

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 7702P AMD EPYC 7702P
64C 128T @ 2.50 GHz
38494
AMD EPYC 7742 AMD EPYC 7742
64C 128T @ 2.80 GHz
37515
AMD EPYC 7702 AMD EPYC 7702
64C 128T @ 2.50 GHz
37461
AMD EPYC 7643 AMD EPYC 7643
48C 96T @ 3.40 GHz
36850
AMD Ryzen Threadripper PRO 3995WX AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 3.00 GHz
36215
AMD Ryzen Threadripper 3990X AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz
34670
AMD EPYC 7662 AMD EPYC 7662
64C 128T @ 2.40 GHz
33944

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD Ryzen Threadripper 3960X AMD Ryzen Threadripper 3960X
24C 48T @ 4.50 GHz
1684
Intel Core i9-10980HK Intel Core i9-10980HK
8C 16T @ 5.30 GHz
1676
AMD Ryzen 7 PRO 6850H AMD Ryzen 7 PRO 6850H
8C 16T @ 4.70 GHz
1672
AMD EPYC 7643 AMD EPYC 7643
48C 96T @ 3.60 GHz
1671
Intel Xeon E-2286M Intel Xeon E-2286M
8C 16T @ 5.00 GHz
1668
AMD Ryzen 3 5425U AMD Ryzen 3 5425U
4C 8T @ 3.80 GHz
1663
Intel Xeon Gold 6348 Intel Xeon Gold 6348
28C 56T @ 3.50 GHz
1663

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Qualcomm Snapdragon X Elite Qualcomm Snapdragon X Elite
12C 12T @ 3.80 GHzNot verified
15211
AMD Ryzen 7 7700X AMD Ryzen 7 7700X
8C 16T @ 5.20 GHz
15137
Intel Core i7-13700T Intel Core i7-13700T
16C 24T @ 4.20 GHz
15020
AMD EPYC 7643 AMD EPYC 7643
48C 96T @ 3.40 GHz
14987
Intel Core i5-14500 Intel Core i5-14500
14C 20T @ 4.80 GHz
14965
Intel Core i5-13600 Intel Core i5-13600
14C 20T @ 4.40 GHz
14937
AMD EPYC 7413 AMD EPYC 7413
24C 48T @ 3.40 GHz
14922

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 Ryzen Threadripper PRO 3995WX AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 3.00 GHz
83324
AMD Ryzen Threadripper 3990X AMD Ryzen Threadripper 3990X
64C 128T @ 3.20 GHz
81100
AMD EPYC 9354P AMD EPYC 9354P
32C 64T @ 3.75 GHz
79364
AMD EPYC 7643 AMD EPYC 7643
48C 96T @ 3.40 GHz
76440
AMD Ryzen Threadripper PRO 5975WX AMD Ryzen Threadripper PRO 5975WX
32C 64T @ 4.00 GHz
76060
AMD EPYC 7662 AMD EPYC 7662
64C 128T @ 2.40 GHz
73144
Intel Xeon w9-3475X Intel Xeon w9-3475X
36C 72T @ 3.00 GHz
70859

Benchmarks





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