Product Compare

AMD Radeon RX 6600 vs AMD Radeon 660M

GPU GPU
Graphics Card
Release Date Oct 2021 Jan 2022
Generation Navi II Rembrandt
Type Desktop Integrated
Bus Interface PCIe 4.0 x8 PCIe 4.0 x8
Clock Speeds
Base Clock 1626 MHz 1500 MHz
Boost Clock 2491 MHz 1900 MHz
Memory Clock 1750 MHz System Shared
Memory
Memory Size 8GB System Shared
Memory Type GDDR6 System Shared
Memory Bus 128bit System Shared
Bandwidth 224.0GB/s System Dependent
Render Config
Compute Units 28 6
Shading Units 1792 384
TMUs 112 24
ROPs 64 16
RT Cores 28 6
L1 Cache 128 KB per Array 128 KB per Array
L2 Cache 2 MB 2 MB
L3 Cache 32 MB
Theoretical Performance
Pixel Rate 159.4 GPixel/s 30.40 GPixel/s
Texture Rate 279.0 GTexel/s 45.60 GTexel/s
FP16 (half) 17.86 TFLOPS 2.918 TFLOPS
FP32 (float) 8.928 TFLOPS 1459 GFLOPS
FP64 (double) 558.0 GFLOPS 91.20 GFLOPS
Graphics Processor
GPU Name Navi 23 Rembrandt
GPU Variant Navi 23 XL(215-130000016)
Architecture RDNA 2.0 RDNA 2.0
Foundry TSMC TSMC
Process Size 7 nm 6 nm
Transistors 11.06 billion 13.1 billion
Die Size 237 mm² 210 mm²
Board Design
TDP 132W 15W
Suggested PSU 300 W
Outputs 1x HDMI 2.13x DisplayPort 1.4a No outputs
Power Connectors 1x 8-pin None
Graphics Features
DirectX 12 Ultimate (12_2) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 2.1 2.0
Vulkan 1.3 1.2
Shader Model 6.5 6.5