Radeon HD 7790 and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon HD 7790 vs Radeon RX 6400
Radeon HD 7790
3183
Radeon RX 6400
7778
Radeon HD 7790
Radeon RX 6400
Architecture
GCN 2.0 (2013−2017)
RDNA 2.0 (2020−2022)
GPU code name
Bonaire
Navi 24
Market segment
Desktop
Desktop
Release date
March 2013
January 2022
Interface
PCIe 3.0 x16
PCIe 4.0 x4
Supplementary power connectors
1x 6-pin
None
Boost clock speed
-
2321 MHz
Core clock speed
1000 MHz
-
Floating-point performance
1,792 gflops
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
2,080 million
5,400 million
Pipelines / CUDA cores
896
768
Power consumption (TDP)
85 Watt
53 Watt
Texture fill rate
56.00
111.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
1 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
6000 MHz
16 GB/s
Memory bandwidth
96 GB/s
128.0 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
+
+
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenCL
2.0
2.2
OpenGL
4.6
4.6
Shader Model
6.3
6.6
Vulkan
1.2.131
1.3