PowerColor Red Dragon Radeon RX 6800 vs Nvidia GeForce GTX 660 OEM

VS
PowerColor Red Dragon Radeon RX 6800
PowerColor Red Dragon Radeon RX 6800 Image
Nvidia GeForce GTX 660 OEM
Nvidia GeForce GTX 660 OEM Image
PowerColor Red Dragon Radeon RX 6800
Nvidia GeForce GTX 660 OEM
Key Differences Key Differences PowerColor Red Dragon Radeon RX 6800 Nvidia GeForce GTX 660 OEM
GPU Base Clock Speed 1800MHz 823MHz
GPU Boost Clock Speed 2170MHz 888MHz
Pixel Rate 208.3 GPixel/s 19.8 GPixel/s
GPU Memory Speed 2000MHz Not Known
GPU Render Output Units (ROPs) 96 32
No. of Supported Displays 4 4
Performance Performance PowerColor Red Dragon Radeon RX 6800 Nvidia GeForce GTX 660 OEM
GPU Base Clock Speed 1800MHz 823MHz
Pixel Rate 208.3 GPixel/s 19.8 GPixel/s
FLOPS (Floating-point Performance) 16.67 TFLOPS 1.9 TFLOPS
GPU Memory Speed 2000MHz Not Known
Texture Filter Rate 520.8 GTexels/s 79 GTexels/s
Total GPU Shading Units 3840 1152
Total GPU TMUs 240 98
GPU Boost Clock Speed 2170MHz 888MHz
GPU Render Output Units (ROPs) 96 32
DPFP (Double Precision Floating Point) Support No No
Features Features PowerColor Red Dragon Radeon RX 6800 Nvidia GeForce GTX 660 OEM
DirectX Version Info 12 11
OpenGL Driver Version 4.6 4.3
OpenCL Driver Version 2.1 1.1
Multi-display Tech Support Yes No
3D Support Yes Yes
Ray Tracing Support Yes No
No. of Supported Displays 4 4
Ports Ports PowerColor Red Dragon Radeon RX 6800 Nvidia GeForce GTX 660 OEM
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 3 1
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 2
Mini DisplayPort Output 0 Not Known
General info General info PowerColor Red Dragon Radeon RX 6800 Nvidia GeForce GTX 660 OEM
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 26800 million 3540 million
Semiconductor Size 7nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 310mm 241mm
Height 135mm 111mm
Memory Memory PowerColor Red Dragon Radeon RX 6800 Nvidia GeForce GTX 660 OEM
Effective Memory Clock 16000MHz 5600MHz
Max Memory Bandwidth 512GB/s 179GB/s
RAM 16GB 2GB
Memory Bus Interface Width 256bit 256bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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