Radeon RX 6400 vs RX 590 GME

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot rated276
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data53.17
Power efficiencyno data26.48
ArchitectureGCN 4.0 (2016−2020)RDNA 2.0 (2020−2024)
GPU code namePolaris 20Navi 24
Market segmentDesktopDesktop
Release date9 March 2020 (4 years ago)19 January 2022 (2 years ago)
Launch price (MSRP)no data$159

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores2304768
Core clock speed1257 MHz1923 MHz
Boost clock speed1420 MHz2321 MHz
Number of transistors5,700 million5,400 million
Manufacturing process technology14 nm6 nm
Power consumption (TDP)175 Watt53 Watt
Texture fill rate204.5111.4
Floating-point processing power6.543 TFLOPS3.565 TFLOPS
ROPs3232
TMUs14448
Ray Tracing Coresno data12

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 3.0 x16PCIe 4.0 x4
Length241 mmno data
Width2-slot1-slot
Supplementary power connectors1x 8-pinNone

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5GDDR6
Maximum RAM amount8 GB4 GB
Memory bus width256 Bit64 Bit
Memory clock speed2000 MHz2000 MHz
Memory bandwidth256.0 GB/s128.0 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x HDMI 2.0b, 3x DisplayPort 1.4a1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI++

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_0)12 Ultimate (12_2)
Shader Model6.76.7
OpenGL4.64.6
OpenCL2.12.2
Vulkan1.31.3

Pros & cons summary


Recency 9 March 2020 19 January 2022
Maximum RAM amount 8 GB 4 GB
Chip lithography 14 nm 6 nm
Power consumption (TDP) 175 Watt 53 Watt

RX 590 GME has a 100% higher maximum VRAM amount.

RX 6400, on the other hand, has an age advantage of 1 year, a 133.3% more advanced lithography process, and 230.2% lower power consumption.

We couldn't decide between Radeon RX 590 GME and Radeon RX 6400. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon RX 590 GME
Radeon RX 590 GME
AMD Radeon RX 6400
Radeon RX 6400

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Community ratings

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4.3 528 votes

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4.1 1844 votes

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Questions & comments

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