Gigabyte Radeon RX 6800 XT vs Nvidia GeForce GTX 660 Ti

VS
Gigabyte Radeon RX 6800 XT
Gigabyte Radeon RX 6800 XT Image
Nvidia GeForce GTX 660 Ti
Nvidia GeForce GTX 660 Ti Image
Gigabyte Radeon RX 6800 XT
Nvidia GeForce GTX 660 Ti
Key Differences Key Differences Gigabyte Radeon RX 6800 XT Nvidia GeForce GTX 660 Ti
GPU Base Clock Speed 1825MHz 915MHz
GPU Boost Clock Speed 2250MHz 980MHz
Pixel Rate 288 GPixel/s 25.6 GPixel/s
GPU Memory Speed 2000MHz 1502MHz
GPU Render Output Units (ROPs) 128 24
No. of Supported Displays 4 4
Performance Performance Gigabyte Radeon RX 6800 XT Nvidia GeForce GTX 660 Ti
GPU Base Clock Speed 1825MHz 915MHz
Pixel Rate 288 GPixel/s 25.6 GPixel/s
FLOPS (Floating-point Performance) 20.74 TFLOPS 2.46 TFLOPS
GPU Memory Speed 2000MHz 1502MHz
Texture Filter Rate 648 GTexels/s 102 GTexels/s
Total GPU Shading Units 4608 1344
Total GPU TMUs 288 112
GPU Boost Clock Speed 2250MHz 980MHz
GPU Render Output Units (ROPs) 128 24
DPFP (Double Precision Floating Point) Support No No
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Features Features Gigabyte Radeon RX 6800 XT Nvidia GeForce GTX 660 Ti
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 4692
3DMark Vantage Texture Fill Result Not Known 86.4GTexels/s
GPU Temperature Under Load Not Known 75°C
3DMark Vantage Pixel Fill Result Not Known 10.4GPixel/s
PassMark (DirectCompute) Benchmark Result Not Known 2547
Idle GPU Temperature Not Known 31°C
Noise Level Under Load Not Known 47.9dB
Power Consumption Under Peak Load Not Known 318W
Idle Power Consumption Not Known 111W
Idle Noise Level Not Known 41.8dB
Multi-GPU Support Count Not Known 3
SmallLuxGPU (2.0d4) Result Not Known 6200
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Miscellaneous Miscellaneous Gigabyte Radeon RX 6800 XT Nvidia GeForce GTX 660 Ti
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports Gigabyte Radeon RX 6800 XT Nvidia GeForce GTX 660 Ti
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
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General info General info Gigabyte Radeon RX 6800 XT Nvidia GeForce GTX 660 Ti
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 267mm 241mm
Height 120mm 111mm
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Memory Memory Gigabyte Radeon RX 6800 XT Nvidia GeForce GTX 660 Ti
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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