Intel Pentium Gold G6605 vs AMD Ryzen 9 5900

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CPU comparison with benchmarks


Intel Pentium Gold G6605 CPU1 vs CPU2 AMD Ryzen 9 5900
Intel Pentium Gold G6605 AMD Ryzen 9 5900

CPU comparison

Intel Pentium Gold G6605 or AMD Ryzen 9 5900 - 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 G6605 has 2 cores with 4 threads and clocks with a maximum frequency of 4.30 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Pentium Gold G6605 was released in Q1/2021.

The AMD Ryzen 9 5900 has 12 cores with 24 threads and clocks with a maximum frequency of 4.70 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 5900 was released in Q2/2021.
Intel Pentium (150) Family AMD Ryzen 9 (35)
Intel Pentium G6000 (12) CPU group AMD Ryzen 5000 (12)
10 Generation 4
Comet Lake S Architecture Vermeer (Zen 3)
Desktop / Server Segment Desktop / Server
-- Predecessor AMD Ryzen 9 3900
-- Successor AMD Ryzen 9 7900

CPU Cores and Base Frequency

The Intel Pentium Gold G6605 has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Pentium Gold G6605 is 4.30 GHz while the AMD Ryzen 9 5900 has 12 CPU cores and 24 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 9 5900 is at 3.00 GHz (4.70 GHz).

Intel Pentium Gold G6605 Characteristic AMD Ryzen 9 5900
2 Cores 12
4 Threads 24
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
4.30 GHz Frequency 3.00 GHz
-- Turbo Frequency (1 Core) 4.70 GHz
-- Turbo Frequency (All Cores) 4.10 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 G6605 Characteristic AMD Ryzen 9 5900
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Pentium Gold G6605 or AMD Ryzen 9 5900 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.

Intel HD Graphics 630 GPU no iGPU
0.35 GHz GPU frequency --
1.10 GHz GPU (Turbo) --
9.5 GPU Generation --
14 nm Technology
3 Max. displays
24 Compute units --
192 Shader --
No Hardware Raytracing No
No Frame Generation No
64 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 630 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 G6605 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 42.7 GB/s. The AMD Ryzen 9 5900 supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 51.2 GB/s.

Intel Pentium Gold G6605 Characteristic AMD Ryzen 9 5900
DDR4-2666 Memory DDR4-3200
128 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual 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 20
15.8 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Pentium Gold G6605 is 58 W, while the AMD Ryzen 9 5900 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Pentium Gold G6605 Characteristic AMD Ryzen 9 5900
58 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
100 °C Tjunction max. 95 °C

Technical details

The Intel Pentium Gold G6605 is manufactured in 14 nm and has 4.00 MB cache. The AMD Ryzen 9 5900 is manufactured in 7 nm and has a 70.00 MB cache.

Intel Pentium Gold G6605 Characteristic AMD Ryzen 9 5900
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 AM4 (PGA 1331)
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 Q2/2021
103 $ Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
Intel Pentium Gold G6605 (55%)
AMD Ryzen 9 5900 (100%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Pentium Gold G6605 (17%)
AMD Ryzen 9 5900 (100%)

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 G6605 Intel Pentium Gold G6605
2C 4T @ 4.30 GHz
1103 (65%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
1688 (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 G6605 Intel Pentium Gold G6605
2C 4T @ 4.30 GHz
2462 (18%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
13874 (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 G6605 Intel Pentium Gold G6605
2C 4T @ 4.30 GHz
940 (44%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
2130 (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 G6605 Intel Pentium Gold G6605
2C 4T @ 4.30 GHz
2085 (21%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
9740 (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 G6605 Intel Pentium Gold G6605
2C 4T @ 4.30 GHz
4445 (13%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
34570 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Pentium Gold G6605 Intel Pentium Gold G6605
2C 4T @ 4.30 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
1622 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Pentium Gold G6605 Intel Pentium Gold G6605
2C 4T @ 4.30 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
20955 (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 G6605 Intel Pentium Gold G6605
Intel HD Graphics 630 @ 1.10 GHz
422 (100%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
@ 0.00 GHz
0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Pentium Gold G6605 Intel Pentium Gold G6605
2C 4T @ 4.30 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 3.00 GHz
7746 (100%)

Devices using this processor

Intel Pentium Gold G6605 AMD Ryzen 9 5900
Unknown Unknown

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