AMD Radeon 660M vs AMD Radeon PRO W7900D
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Nov 2025
Generation
Rembrandt
Radeon Pro Navi
Type
Integrated
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Clock Speeds
Base Clock
1500 MHz
1327 MHz
Boost Clock
1900 MHz
2156 MHz
Memory Clock
System Shared
2250 MHz
Memory
Memory Size
System Shared
48GB
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
384bit
Bandwidth
System Dependent
864.0GB/s
Render Config
Compute Units
6
96
Shading Units
384
6144
TMUs
24
384
ROPs
16
192
RT Cores
6
96
L1 Cache
128 KB per Array
256 KB per Array
L2 Cache
2 MB
6 MB
L3 Cache
—
96 MB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
414.0 GPixel/s
Texture Rate
45.60 GTexel/s
827.9 GTexel/s
FP16 (half)
2.918 TFLOPS
106.0 TFLOPS
FP32 (float)
1459 GFLOPS
52.99 TFLOPS
FP64 (double)
91.20 GFLOPS
1.656 TFLOPS
Graphics Processor
GPU Name
Rembrandt
Navi 31
Architecture
RDNA 2.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
6 nm
5 nm
Transistors
13.1 billion
57.7 billion
Die Size
210 mm²
529 mm²
GPU Variant
—
Navi 31
Board Design
TDP
15W
295W
Outputs
No outputs
3x DisplayPort 2.11x mini-DisplayPort 2.1
Power Connectors
None
2x 8-pin
Suggested PSU
—
600 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.2
Vulkan
1.2
1.4
Shader Model
6.5
6.9
Benchmark
3DMark Time Spy
1,537
—
3DMark Time Spy Extreme
701
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.