Radeon RX 6400 and Radeon RX 6600S - video card comparison
Passmark - benchmark score Radeon RX 6400 vs Radeon RX 6600S
Radeon RX 6400
7778
Radeon RX 6600S
14088
Radeon RX 6400
Radeon RX 6600S
Architecture
RDNA 2.0 (2020−2022)
RDNA 2 (2020−2022)
GPU code name
Navi 24
Navi 23
Market segment
Desktop
Laptop
Release date
January 2022
January 2022
Interface
PCIe 4.0 x4
PCIe 4.0 x8
Supplementary power connectors
None
None
Boost clock speed
2321 MHz
1881 MHz
Manufacturing process technology
6 nm
7 nm
Number of transistors
5,400 million
11,060 million
Pipelines / CUDA cores
768
1792
Power consumption (TDP)
53 Watt
80 Watt
Texture fill rate
111.4
224.0
Memory type
GDDR6
GDDR6
Maximum RAM amount
4 GB
4 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
16 GB/s
16000 MHz
Memory bandwidth
128.0 GB/s
224.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.1, 1x DisplayPort 1.4a
No outputs
HDMI
+
-
DirectX
12 Ultimate (12_2)
12.0 Ultimate (12_2)
OpenCL
2.2
2.1
OpenGL
4.6
4.6
Shader Model
6.6
6.5
Vulkan
1.3
1.2