Gigabyte GeForce RTX 2080 Ti WindForce OC vs Gigabyte GeForce GTX 660 WindForce 2X OC

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Gigabyte GeForce RTX 2080 Ti WindForce OC
Gigabyte GeForce RTX 2080 Ti WindForce OC Image
Gigabyte GeForce GTX 660 WindForce 2X OC
Gigabyte GeForce GTX 660 WindForce 2X OC Image
Gigabyte GeForce RTX 2080 Ti WindForce OC
Gigabyte GeForce GTX 660 WindForce 2X OC
Key Differences Key Differences Gigabyte GeForce RTX 2080 Ti WindForce OC Gigabyte GeForce GTX 660 WindForce 2X OC
GPU Base Clock Speed 1350MHz 1032MHz
GPU Boost Clock Speed 1620MHz 1098MHz
Pixel Rate 142.6 GPixel/s 20.6 GPixel/s
GPU Memory Speed 1750MHz 1502MHz
GPU Render Output Units (ROPs) 88 24
No. of Supported Displays 4 4
Performance Performance Gigabyte GeForce RTX 2080 Ti WindForce OC Gigabyte GeForce GTX 660 WindForce 2X OC
GPU Base Clock Speed 1350MHz 1032MHz
Pixel Rate 142.6 GPixel/s 20.6 GPixel/s
FLOPS (Floating-point Performance) 14.1 TFLOPS 1.98 TFLOPS
GPU Memory Speed 1750MHz 1502MHz
Texture Filter Rate 440.6 GTexels/s 82.6 GTexels/s
Total GPU Shading Units 4352 960
Total GPU TMUs 272 80
GPU Boost Clock Speed 1620MHz 1098MHz
GPU Render Output Units (ROPs) 88 24
DPFP (Double Precision Floating Point) Support No No
Features Features Gigabyte GeForce RTX 2080 Ti WindForce OC Gigabyte GeForce GTX 660 WindForce 2X OC
DirectX Version Info 12 11
OpenGL Driver Version 4.5 4.3
OpenCL Driver Version 2 1.1
Multi-display Tech Support Yes Yes
3D Support Yes Yes
Multi-GPU Support Count 2 Not Known
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
Ray Tracing Support No No
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 Gigabyte GeForce RTX 2080 Ti WindForce OC Gigabyte GeForce GTX 660 WindForce 2X OC
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports Gigabyte GeForce RTX 2080 Ti WindForce OC Gigabyte GeForce GTX 660 WindForce 2X OC
HDMI Output Support Yes Yes
GPU HDMI Version 2 Not Known
DisplayPort Output 3 1
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 2
Mini DisplayPort Output 0 0
General info General info Gigabyte GeForce RTX 2080 Ti WindForce OC Gigabyte GeForce GTX 660 WindForce 2X OC
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 18600 million 2540 million
Semiconductor Size 12nm 28nm
PCI Express Version 3 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 280.35mm 256mm
Height 116.45mm 111mm
Memory Memory Gigabyte GeForce RTX 2080 Ti WindForce OC Gigabyte GeForce GTX 660 WindForce 2X OC
Effective Memory Clock 14000MHz 6008MHz
Max Memory Bandwidth 616GB/s 144GB/s
RAM 11GB 2GB
Memory Bus Interface Width 352bit 192bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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