Intel Pentium Gold G6405 vs AMD Ryzen Threadripper PRO 3945WX

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CPU comparison with benchmarks


Intel Pentium Gold G6405 CPU1 vs CPU2 AMD Ryzen Threadripper PRO 3945WX
Intel Pentium Gold G6405 AMD Ryzen Threadripper PRO 3945WX

CPU comparison

Intel Pentium Gold G6405 or AMD Ryzen Threadripper PRO 3945WX - 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 Intel Pentium Gold G6405 has 2 cores with 4 threads and clocks with a maximum frequency of 4.10 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Pentium Gold G6405 was released in Q1/2021.

The AMD Ryzen Threadripper PRO 3945WX has 12 cores with 24 threads and clocks with a maximum frequency of 4.30 GHz. The CPU supports up to 2048 GB of memory in 8 memory channels. The AMD Ryzen Threadripper PRO 3945WX was released in Q1/2021.
Intel Pentium (150) Family AMD Ryzen Threadripper PRO (15)
Intel Pentium G6000 (12) CPU group AMD Ryzen Threadripper PRO 3000 (4)
10 Generation 3
Comet Lake S Architecture Castle Peak (Zen 2)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor AMD Ryzen Threadripper PRO 5945WX

CPU Cores and Base Frequency

The Intel Pentium Gold G6405 is a 2 core processor with a clock frequency of 4.10 GHz. The AMD Ryzen Threadripper PRO 3945WX has 12 CPU cores with a clock frequency of 4.00 GHz (4.30 GHz).

Intel Pentium Gold G6405 Characteristic AMD Ryzen Threadripper PRO 3945WX
2 Cores 12
4 Threads 24
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
4.10 GHz Frequency 4.00 GHz
-- Turbo Frequency (1 Core) 4.30 GHz
-- Turbo Frequency (All Cores) 4.20 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Pentium Gold G6405 Characteristic AMD Ryzen Threadripper PRO 3945WX
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

Intel HD Graphics 610 GPU no iGPU
0.35 GHz GPU frequency --
1.05 GHz GPU (Turbo) --
9.5 GPU Generation --
14 nm Technology
3 Max. displays
12 Compute units --
96 Shader --
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory --
12 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.

Intel HD Graphics 610 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
Decode / Encode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The Intel Pentium Gold G6405 supports a maximum of 128 GB of memory in 2 memory channels. The AMD Ryzen Threadripper PRO 3945WX can connect up to 2048 GB of memory in 8 memory channels.

Intel Pentium Gold G6405 Characteristic AMD Ryzen Threadripper PRO 3945WX
DDR4-2666 Memory DDR4-3200
128 GB Max. Memory 2048 GB
2 (Dual Channel) Memory channels 8 (Octa Channel)
42.7 GB/s Max. Bandwidth 51.2 GB/s
Yes ECC Yes
-- L2 Cache 6.00 MB
4.00 MB L3 Cache 64.00 MB
3.0 PCIe version 4.0
16 PCIe lanes 128
15.8 GB/s PCIe Bandwidth 252.0 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Pentium Gold G6405 has a TDP of 58 W, that of the AMD Ryzen Threadripper PRO 3945WX is 280 W.

Intel Pentium Gold G6405 Characteristic AMD Ryzen Threadripper PRO 3945WX
58 W TDP (PL1 / PBP) 280 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
100 °C Tjunction max. 95 °C

Technical details

The Intel Pentium Gold G6405 has a 4.00 MB cache, while the AMD Ryzen Threadripper PRO 3945WX cache has a total of 70.00 MB.

Intel Pentium Gold G6405 Characteristic AMD Ryzen Threadripper PRO 3945WX
14 nm Technology 7 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
LGA 1200 Socket WRX8 (sWRX8)
VT-x, VT-x EPT, VT-d Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2021 Release date Q1/2021
77 $ Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Pentium Gold G6405 to help other visitors make their purchasing decisions. The average rating is 2.0 stars (2 ratings). Rate now:
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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks

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 Pentium Gold G6405 Intel Pentium Gold G6405
2C 4T @ 4.10 GHz
1060 (81%)
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.30 GHz
1307 (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.
Intel Pentium Gold G6405 Intel Pentium Gold G6405
2C 4T @ 4.10 GHz
2286 (18%)
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
12828 (100%)

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.
Intel Pentium Gold G6405 Intel Pentium Gold G6405
2C 4T @ 4.10 GHz
890 (54%)
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.30 GHz
1652 (100%)

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.
Intel Pentium Gold G6405 Intel Pentium Gold G6405
2C 4T @ 4.10 GHz
1890 (16%)
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
11500 (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.
Intel Pentium Gold G6405 Intel Pentium Gold G6405
2C 4T @ 4.10 GHz
4270 (13%)
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
33450 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Pentium Gold G6405 Intel Pentium Gold G6405
Intel HD Graphics 610 @ 1.05 GHz
202 (100%)
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
@ 0.00 GHz
0 (0%)

Devices using this processor

Intel Pentium Gold G6405 AMD Ryzen Threadripper PRO 3945WX
Unknown Unknown

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