Radeon RX 7950 XT vs RX 6400

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Primary details

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

Place in the ranking279not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation53.99no data
Power efficiency25.60no data
ArchitectureRDNA 2.0 (2020−2024)RDNA 3.0 (2022−2024)
GPU code nameNavi 24Navi 31
Market segmentDesktopDesktop
Release date19 January 2022 (2 years ago)no data
Launch price (MSRP)$159 no data

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 cores7685376
Core clock speed1923 MHz2000 MHz
Boost clock speed2321 MHz3000 MHz
Number of transistors5,400 million57,700 million
Manufacturing process technology6 nm5 nm
Power consumption (TDP)53 Watt300 Watt
Texture fill rate111.41,008
Floating-point processing power3.565 TFLOPS64.51 TFLOPS
ROPs32192
TMUs48336
Ray Tracing Cores1284

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 4.0 x4PCIe 4.0 x16
Lengthno data276 mm
Width1-slot2-slot
Supplementary power connectorsNone2x 8-pin

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 typeGDDR6GDDR6
Maximum RAM amount4 GB20 GB
Memory bus width64 Bit320 Bit
Memory clock speed2000 MHz2500 MHz
Memory bandwidth128.0 GB/s800.0 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 2.1, 1x DisplayPort 1.4a1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI++

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.76.7
OpenGL4.64.6
OpenCL2.22.2
Vulkan1.31.3

Pros & cons summary


Maximum RAM amount 4 GB 20 GB
Chip lithography 6 nm 5 nm
Power consumption (TDP) 53 Watt 300 Watt

RX 6400 has 466% lower power consumption.

RX 7950 XT, on the other hand, has a 400% higher maximum VRAM amount, and a 20% more advanced lithography process.

We couldn't decide between Radeon RX 6400 and Radeon RX 7950 XT. 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 6400
Radeon RX 6400
AMD Radeon RX 7950 XT
Radeon RX 7950 XT

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Community ratings

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Questions & comments

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