AMD Radeon RX 7900M vs AMD Radeon RX 6900 XTX
GPU Specs Compare
Graphics Card
Release Date
Oct 2023
Unknown
Generation
Navi Mobile
Navi II
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1825 MHz
2075 MHz
Boost Clock
2090 MHz
2435 MHz
Memory Clock
2250 MHz
2250 MHz
Memory
Memory Size
16GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
256bit
Bandwidth
576.0GB/s
576.0GB/s
Render Config
Compute Units
72
80
Shading Units
4608
5120
TMUs
288
320
ROPs
192
128
RT Cores
72
80
L1 Cache
256 KB per Array
128 KB per Array
L2 Cache
6 MB
4 MB
L3 Cache
64 MB
128 MB
Theoretical Performance
Pixel Rate
401.3 GPixel/s
311.7 GPixel/s
Texture Rate
601.9 GTexel/s
779.2 GTexel/s
FP16 (half)
77.05 TFLOPS
49.87 TFLOPS
FP32 (float)
38.52 TFLOPS
24.93 TFLOPS
FP64 (double)
1204 GFLOPS
1.558 TFLOPS
Graphics Processor
GPU Name
Navi 31
Navi 21
GPU Variant
Navi 31
Navi 21 XTXH(215-121000247)
Architecture
RDNA 3.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
7 nm
Transistors
57.7 billion
26.8 billion
Die Size
529 mm²
520 mm²
Board Design
TDP
180W
330W
Outputs
Portable Device Dependent
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
None
2x 8-pin
Suggested PSU
-
700 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.2
2.1
Vulkan
1.3
1.3
Shader Model
6.8
6.5
📊 Benchmark
3DMark Time Spy
18,218
-
3DMark Time Spy Extreme
8,440
-
3DMark Speed Way
3,943
-
Blender
2,583
-