Radeon HD 8790M and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon HD 8790M vs Radeon RX 6400
Radeon HD 8790M
1344
Radeon RX 6400
7776
Radeon HD 8790M
Radeon RX 6400
Architecture
GCN (2011−2017)
RDNA 2.0 (2020−2022)
GPU code name
Mars XTX
Navi 24
Market segment
Laptop
Desktop
Release date
November 2012
January 2022
Interface
MXM-A (3.0)
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
900 MHz
2321 MHz
Core clock speed
850 MHz
-
Floating-point performance
691.2 gflops
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
950 million
5,400 million
Pipelines / CUDA cores
384
768
Power consumption (TDP)
unknown
53 Watt
Texture fill rate
21.60
111.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
4500 MHz
16 GB/s
Memory bandwidth
64 GB/s
128.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
-
+
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenCL
1.2
2.2
OpenGL
4.6
4.6
Shader Model
5.1
6.6
Vulkan
1.2.131
1.3