Ryzen 9 5900X vs Pentium Gold 6405U

VS

Aggregate performance score

Pentium Gold 6405U
2019
2 cores / 4 threads, 15 Watt
1.72
Ryzen 9 5900X
2020
12 cores / 24 threads, 105 Watt
24.61
+1331%

Ryzen 9 5900X outperforms Pentium Gold 6405U by a whopping 1331% based on our aggregate benchmark results.

Primary details

Comparing Pentium Gold 6405U and Ryzen 9 5900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2047206
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data32.24
Market segmentLaptopDesktop processor
SeriesIntel Comet LakeAMD Ryzen 9
Power efficiency10.8422.17
Architecture codenameComet Lake-U (2019−2020)Vermeer (Zen3) (2020−2022)
Release date31 October 2019 (5 years ago)5 November 2020 (4 years ago)
Launch price (MSRP)$161$549

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Pentium Gold 6405U and Ryzen 9 5900X basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores2 (Dual-core)12 (Dodeca-Core)
Threads424
Base clock speed2.4 GHz3.7 GHz
Boost clock speed2.4 GHz4.8 GHz
Bus rate4 GT/sno data
Multiplierno data37
L1 cache256 KB64K (per core)
L2 cache1 MB512K (per core)
L3 cache2 MB64 MB
Chip lithography14 nm7 nm, 12 nm
Die sizeno data2x 74 mm2(CCD) + 125 mm2 (IOD)
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)no data95 °C
Number of transistorsno data0 Million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier-+

Compatibility

Information on Pentium Gold 6405U and Ryzen 9 5900X compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11
SocketFCBGA1528AM4
Power consumption (TDP)15 Watt105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium Gold 6405U and Ryzen 9 5900X. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.286x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2
AES-NI++
AVX-+
Enhanced SpeedStep (EIST)+no data
Speed Shift+no data
Turbo Boost Technology-no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
Flex Memory Access+no data
Precision Boost 2no data+

Security technologies

Pentium Gold 6405U and Ryzen 9 5900X technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB+no data
Secure Key+no data
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium Gold 6405U and Ryzen 9 5900X are enumerated here.

AMD-V++
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium Gold 6405U and Ryzen 9 5900X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4-3200
Maximum memory size64 GB128 GB
Max memory channels22
Maximum memory bandwidth37.5 GB/s51.196 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics for 10th Gen Intel Processors-
Max video memory32 GB-
Quick Sync Video+-
Clear Video+-
Clear Video HD+-
Graphics max frequency950 MHz-

Graphics interfaces

Available interfaces and connections of Pentium Gold 6405U and Ryzen 9 5900X integrated GPUs.

Number of displays supported3-
eDP+-
DisplayPort+-
HDMI+-
DVI+-

Graphics image quality

Maximum display resolutions supported by Pentium Gold 6405U and Ryzen 9 5900X integrated GPUs, including resolutions over different interfaces.

4K resolution support+-
Max resolution over HDMI 1.44096x2304@24Hz-
Max resolution over eDP4096x2304@60Hz-
Max resolution over DisplayPort4096x2304@60Hz-

Graphics API support

APIs supported by Pentium Gold 6405U and Ryzen 9 5900X integrated GPUs, sometimes API versions are included.

DirectX12-
OpenGL4.5-

Peripherals

Specifications and connection of peripherals supported by Pentium Gold 6405U and Ryzen 9 5900X.

PCIe version2.04.0
PCI Express lanes12no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Pentium Gold 6405U 1.72
Ryzen 9 5900X 24.61
+1331%

Geekbench 5.5 Multi-Core

Pentium Gold 6405U 1320
Ryzen 9 5900X 11765
+791%

Gaming performance

Pros & cons summary


Performance score 1.72 24.61
Recency 31 October 2019 5 November 2020
Physical cores 2 12
Threads 4 24
Chip lithography 14 nm 7 nm
Power consumption (TDP) 15 Watt 105 Watt

Pentium Gold 6405U has 600% lower power consumption.

Ryzen 9 5900X, on the other hand, has a 1330.8% higher aggregate performance score, an age advantage of 1 year, 500% more physical cores and 500% more threads, and a 100% more advanced lithography process.

The Ryzen 9 5900X is our recommended choice as it beats the Pentium Gold 6405U in performance tests.

Be aware that Pentium Gold 6405U is a notebook processor while Ryzen 9 5900X is a desktop one.


Should you still have questions on choice between Pentium Gold 6405U and Ryzen 9 5900X, ask them in Comments section, and we shall answer.

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Intel Pentium Gold 6405U
Pentium Gold 6405U
AMD Ryzen 9 5900X
Ryzen 9 5900X

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Community ratings

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