AMD Radeon RX 6400 vs AMD Radeon HD 7950M
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Apr 2012
Generation
Navi II
London
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x4
MXM-B (3.0)
Clock Speeds
Base Clock
1923 MHz
-
Boost Clock
2321 MHz
-
Memory Clock
2000 MHz
1000 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
64bit
256bit
Bandwidth
128.0GB/s
128.0GB/s
Render Config
Compute Units
12
20
Shading Units
768
1280
TMUs
48
80
ROPs
32
32
RT Cores
12
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
1024 KB
512 KB
L3 Cache
16 MB
-
Theoretical Performance
Pixel Rate
74.27 GPixel/s
22.40 GPixel/s
Texture Rate
111.4 GTexel/s
56.00 GTexel/s
FP16 (half)
7.130 TFLOPS
-
FP32 (float)
3.565 TFLOPS
1.792 TFLOPS
FP64 (double)
222.8 GFLOPS
-
Graphics Processor
GPU Name
Navi 24
Wimbledon
GPU Variant
Navi 24 XL(215-135000046)
Wimbledon PRO
Architecture
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
6 nm
28 nm
Transistors
5.4 billion
2.8 billion
Die Size
107 mm²
212 mm²
Board Design
TDP
53W
75W
Suggested PSU
250 W
-
Outputs
1x HDMI 2.11x DisplayPort 1.4a
No outputs
Power Connectors
None
-
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