Radeon RX 6600M and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon RX 6600M vs Radeon RX 6400
Radeon RX 6600M
14089
Radeon RX 6400
7778
Radeon RX 6600M
Radeon RX 6400
Architecture
RDNA 2 (2020−2022)
RDNA 2.0 (2020−2022)
GPU code name
R21M-E65-70
Navi 24
Market segment
Laptop
Desktop
Release date
September 2020
January 2022
Interface
PCIe 4.0 x8
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
2177 MHz
2321 MHz
Core clock speed
2068 MHz
-
Manufacturing process technology
7 nm
6 nm
Number of transistors
11,060 million
5,400 million
Pipelines / CUDA cores
1792
768
Power consumption (TDP)
100 Watt (50 - 100 Watt TGP)
53 Watt
Texture fill rate
235.8
111.4
Memory type
GDDR6
GDDR6
Maximum RAM amount
8 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
14000 MHz
16 GB/s
Memory bandwidth
256.0 GB/s
128.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
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
6.5
6.6
Vulkan
1.2
1.3