Product Compare

AMD Radeon R9 285X vs AMD Radeon 660M

GPU GPU
Graphics Card
Release Date Unknown Jan 2022
Generation Volcanic Islands Rembrandt
Type Desktop Integrated
Bus Interface PCIe 3.0 x16 PCIe 4.0 x8
Clock Speeds
Memory Clock 1375 MHz System Shared
Base Clock 1500 MHz
Boost Clock 1900 MHz
Memory
Memory Size 3GB System Shared
Memory Type GDDR5 System Shared
Memory Bus 384bit System Shared
Bandwidth 264.0GB/s System Dependent
Render Config
Compute Units 32 6
Shading Units 2048 384
TMUs 128 24
ROPs 32 16
L1 Cache 16 KB (per CU) 128 KB per Array
L2 Cache 768 KB 2 MB
RT Cores 6
Theoretical Performance
Pixel Rate 32.06 GPixel/s 30.40 GPixel/s
Texture Rate 128.3 GTexel/s 45.60 GTexel/s
FP32 (float) 4.104 TFLOPS 1459 GFLOPS
FP16 (half) 2.918 TFLOPS
FP64 (double) 91.20 GFLOPS
Graphics Processor
GPU Name Tonga Rembrandt
GPU Variant Tonga XT(215-0851313)
Architecture GCN 3.0 RDNA 2.0
Foundry TSMC TSMC
Process Size 28 nm 6 nm
Transistors 5 billion 13.1 billion
Die Size 366 mm² 210 mm²
Board Design
TDP 200W 15W
Suggested PSU 550 W
Outputs 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 No outputs
Power Connectors 1x 6-pin + 1x 8-pin None
Graphics Features
DirectX 12 (12_0) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.2 1.2
Shader Model 6.3 6.5