Radeon RX 7900 XT and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon RX 7900 XT vs Radeon RX 6400
Radeon RX 7900 XT
29720
Radeon RX 6400
7778
Radeon RX 7900 XT
Radeon RX 6400
Architecture
RDNA 3
RDNA 2.0 (2020−2022)
GPU code name
Navi 31 XT
Navi 24
Market segment
Desktop
Desktop
Release date
November 2022
January 2022
Interface
PCIe 4.0 x16
PCIe 4.0 x4
Supplementary power connectors
2x 8-pin
None
Boost clock speed
2000 MHz
2321 MHz
Manufacturing process technology
5 nm
6 nm
Number of transistors
57,700 million
5,400 million
Pipelines / CUDA cores
5376
768
Power consumption (TDP)
315 Watt
53 Watt
Texture fill rate
804.4
111.4
Memory type
GDDR6
GDDR6
Maximum RAM amount
20 GB
4 GB
Memory bus width
320 Bit
64 Bit
Memory clock speed
20000 MHz
16 GB/s
Memory bandwidth
800.0 GB/s
128.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
+
+
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenCL
2.1
2.2
OpenGL
4.6
4.6
Shader Model
6.7
6.6
Vulkan
1.3
1.3