Radeon RX 6400 and Radeon 660M - video card comparison
Passmark - benchmark score Radeon RX 6400 vs Radeon 660M
Radeon RX 6400
7776
Radeon 660M
6474
Radeon RX 6400
Radeon 660M
Architecture
RDNA 2.0 (2020−2022)
RDNA 2 (2020−2022)
GPU code name
Navi 24
RDNA 2 Rembrandt
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
1900 MHz
Manufacturing process technology
6 nm
6 nm
Number of transistors
5,400 million
13,100 million
Pipelines / CUDA cores
768
384
Power consumption (TDP)
53 Watt
45 Watt
Texture fill rate
111.4
45.60
Memory type
GDDR6
System Shared
Maximum RAM amount
4 GB
System Shared
Memory bus width
64 Bit
System Shared
Memory clock speed
16 GB/s
System Shared
Memory bandwidth
128.0 GB/s
-
Shared memory
-
-
Display Connectors
1x HDMI 2.1, 1x DisplayPort 1.4a
No outputs
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenCL
2.2
2.0
OpenGL
4.6
4.6
Shader Model
6.6
6.5
Vulkan
1.3
1.2