Product Compare

AMD Radeon 660M vs NVIDIA RTX A4000H

GPU GPU
Graphics Card
Release Date Jan 2022 Apr 2021
Generation Rembrandt Quadro Ampere
Type Integrated Desktop
Bus Interface PCIe 4.0 x8 PCIe 4.0 x16
Clock Speeds
Base Clock 1500 MHz 735 MHz
Boost Clock 1900 MHz 1560 MHz
Memory Clock System Shared 1750 MHz
Memory
Memory Size System Shared 16GB
Memory Type System Shared GDDR6
Memory Bus System Shared 256bit
Bandwidth System Dependent 448.0GB/s
Render Config
Compute Units 6
Shading Units 384 6144
TMUs 24 192
ROPs 16 96
RT Cores 6 48
L1 Cache 128 KB per Array 128 KB (per SM)
L2 Cache 2 MB 4 MB
SM Count 48
Tensor Cores 192
Theoretical Performance
Pixel Rate 30.40 GPixel/s 149.8 GPixel/s
Texture Rate 45.60 GTexel/s 299.5 GTexel/s
FP16 (half) 2.918 TFLOPS 19.17 TFLOPS
FP32 (float) 1459 GFLOPS 19.17 TFLOPS
FP64 (double) 91.20 GFLOPS 299.5 GFLOPS
Graphics Processor
GPU Name Rembrandt GA104
Architecture RDNA 2.0 Ampere
Foundry TSMC Samsung
Process Size 6 nm 8 nm
Transistors 13.1 billion 17.4 billion
Die Size 210 mm² 392 mm²
GPU Variant GA104-???-A1
Board Design
TDP 15W 140W
Outputs No outputs 4x DisplayPort 1.4a
Power Connectors None 1x 6-pin
Suggested PSU 300 W
Graphics Features
DirectX 12 Ultimate (12_2) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 2.0 3.0
Vulkan 1.2 1.3
Shader Model 6.5 6.7
CUDA 8.6