AMD Radeon RX 6400 vs AMD Radeon HD 7970 X2
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Aug 2012
Generation
Navi II
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x4
PCIe 3.0 x16
Clock Speeds
Base Clock
1923 MHz
-
Boost Clock
2321 MHz
-
Memory Clock
2000 MHz
1375 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
64bit
384bit
Bandwidth
128.0GB/s
264.0GB/s
Render Config
Compute Units
12
32
Shading Units
768
2048
TMUs
48
128
ROPs
32
32
RT Cores
12
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
1024 KB
768 KB
L3 Cache
16 MB
-
Theoretical Performance
Pixel Rate
74.27 GPixel/s
29.60 GPixel/s
Texture Rate
111.4 GTexel/s
118.4 GTexel/s
FP16 (half)
7.130 TFLOPS
-
FP32 (float)
3.565 TFLOPS
3.789 TFLOPS
FP64 (double)
222.8 GFLOPS
947.2 GFLOPS
Graphics Processor
GPU Name
Navi 24
New Zealand
GPU Variant
Navi 24 XL(215-135000046)
-
Architecture
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
6 nm
28 nm
Transistors
5.4 billion
4.313 billion
Die Size
107 mm²
352 mm²
Board Design
TDP
53W
500W
Suggested PSU
250 W
900 W
Outputs
1x HDMI 2.11x DisplayPort 1.4a
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
3x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.2
1.2
Vulkan
1.3
1.2
Shader Model
6.7
5.1