PowerColor Radeon RX 6800 vs Gigabyte GeForce GTX 660 WindForce 2X

VS
PowerColor Radeon RX 6800
PowerColor Radeon RX 6800 Image
Gigabyte GeForce GTX 660 WindForce 2X
Gigabyte GeForce GTX 660 WindForce 2X Image
PowerColor Radeon RX 6800
Gigabyte GeForce GTX 660 WindForce 2X
Key Differences Key Differences PowerColor Radeon RX 6800 Gigabyte GeForce GTX 660 WindForce 2X
GPU Base Clock Speed 1700MHz 980MHz
GPU Boost Clock Speed 2105MHz 1046MHz
Pixel Rate 202.1 GPixel/s 19.6 GPixel/s
GPU Memory Speed 2000MHz 1502MHz
GPU Render Output Units (ROPs) 96 24
No. of Supported Displays 4 4
Performance Performance PowerColor Radeon RX 6800 Gigabyte GeForce GTX 660 WindForce 2X
GPU Base Clock Speed 1700MHz 980MHz
Pixel Rate 202.1 GPixel/s 19.6 GPixel/s
FLOPS (Floating-point Performance) 16.17 TFLOPS 1.88 TFLOPS
GPU Memory Speed 2000MHz 1502MHz
Texture Filter Rate 505.2 GTexels/s 78.4 GTexels/s
Total GPU Shading Units 3840 960
Total GPU TMUs 240 80
GPU Boost Clock Speed 2105MHz 1046MHz
GPU Render Output Units (ROPs) 96 24
DPFP (Double Precision Floating Point) Support No No
Features Features PowerColor Radeon RX 6800 Gigabyte GeForce GTX 660 WindForce 2X
DirectX Version Info 12 11
OpenGL Driver Version 4.6 4.3
OpenCL Driver Version 2 1.1
Multi-display Tech Support Yes Yes
3D Support Yes Yes
Ray Tracing Support Yes No
No. of Supported Displays 4 4
PassMark (G3D) Score Not Known 4104
3DMark Vantage Texture Fill Result Not Known 65.3GTexels/s
GPU Temperature Under Load Not Known 72°C
3DMark Vantage Pixel Fill Result Not Known 9.9GPixel/s
PassMark (DirectCompute) Benchmark Result Not Known 1933
Idle GPU Temperature Not Known 30°C
Noise Level Under Load Not Known 47.4dB
Power Consumption Under Peak Load Not Known 296W
Idle Power Consumption Not Known 110W
Idle Noise Level Not Known 40.8dB
SmallLuxGPU (2.0d4) Result Not Known 5000
Miscellaneous Miscellaneous PowerColor Radeon RX 6800 Gigabyte GeForce GTX 660 WindForce 2X
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports PowerColor Radeon RX 6800 Gigabyte GeForce GTX 660 WindForce 2X
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 2 1
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 2
Mini DisplayPort Output 0 0
General info General info PowerColor Radeon RX 6800 Gigabyte GeForce GTX 660 WindForce 2X
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 26800 million 2540 million
Semiconductor Size 7nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 266.8mm 256mm
Height 119.8mm 111mm
Memory Memory PowerColor Radeon RX 6800 Gigabyte GeForce GTX 660 WindForce 2X
Effective Memory Clock 16000MHz 6008MHz
Max Memory Bandwidth 512GB/s 144GB/s
RAM 16GB 2GB
Memory Bus Interface Width 256bit 192bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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