AMD Radeon RX 7800M vs AMD Radeon RX 7400
GPU Specs Compare
Graphics Card
Release Date
Sep 2024
Aug 2025
Generation
Navi Mobile
Navi III
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1295 MHz
1452 MHz
Boost Clock
2335 MHz
2300 MHz
Memory Clock
2250 MHz
2250 MHz
Memory
Memory Size
12GB
8GB
Memory Type
GDDR6
GDDR6
Memory Bus
192bit
128bit
Bandwidth
432.0GB/s
288.0GB/s
Render Config
Compute Units
60
28
Shading Units
3840
1792
TMUs
240
112
ROPs
96
64
RT Cores
60
28
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
4 MB
2 MB
L3 Cache
48 MB
64 MB
Theoretical Performance
Pixel Rate
224.2 GPixel/s
147.2 GPixel/s
Texture Rate
560.4 GTexel/s
257.6 GTexel/s
FP16 (half)
71.73 TFLOPS
32.97 TFLOPS
FP32 (float)
35.87 TFLOPS
16.49 TFLOPS
FP64 (double)
1121 GFLOPS
515.2 GFLOPS
Graphics Processor
GPU Name
Navi 32
Navi 33
GPU Variant
Navi 32 XT(215-180000006)
Navi 33
Architecture
RDNA 3.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
5 nm
6 nm
Transistors
28.1 billion
13.3 billion
Die Size
346 mm²
204 mm²
Board Design
TDP
180W
43W
Outputs
Portable Device Dependent
1x HDMI 2.1a3x DisplayPort 2.1
Power Connectors
None
1x 6-pin
Suggested PSU
-
200 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.2
2.2
Vulkan
1.3
1.3
Shader Model
6.8
6.8