ASRock Radeon RX 6800 XT Phantom Gaming D OC vs Nvidia GeForce GTX 660 OEM

VS
ASRock Radeon RX 6800 XT Phantom Gaming D OC
ASRock Radeon RX 6800 XT Phantom Gaming D OC Image
Nvidia GeForce GTX 660 OEM
Nvidia GeForce GTX 660 OEM Image
ASRock Radeon RX 6800 XT Phantom Gaming D OC
Nvidia GeForce GTX 660 OEM
Key Differences Key Differences ASRock Radeon RX 6800 XT Phantom Gaming D OC Nvidia GeForce GTX 660 OEM
GPU Base Clock Speed 1875MHz 823MHz
GPU Boost Clock Speed 2310MHz 888MHz
Pixel Rate 295.7 GPixel/s 19.8 GPixel/s
GPU Memory Speed 2000MHz Not Known
GPU Render Output Units (ROPs) 128 32
No. of Supported Displays 4 4
Performance Performance ASRock Radeon RX 6800 XT Phantom Gaming D OC Nvidia GeForce GTX 660 OEM
GPU Base Clock Speed 1875MHz 823MHz
Pixel Rate 295.7 GPixel/s 19.8 GPixel/s
FLOPS (Floating-point Performance) 21.29 TFLOPS 1.9 TFLOPS
GPU Memory Speed 2000MHz Not Known
Texture Filter Rate 665.3 GTexels/s 79 GTexels/s
Total GPU Shading Units 4608 1152
Total GPU TMUs 288 98
GPU Boost Clock Speed 2310MHz 888MHz
GPU Render Output Units (ROPs) 128 32
DPFP (Double Precision Floating Point) Support No No
Features Features ASRock Radeon RX 6800 XT Phantom Gaming D OC 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 ASRock Radeon RX 6800 XT Phantom Gaming D OC 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 ASRock Radeon RX 6800 XT Phantom Gaming D OC 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 330mm 241mm
Height 140mm 111mm
Memory Memory ASRock Radeon RX 6800 XT Phantom Gaming D OC 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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