Nvidia GeForce GTX 1080 Ti vs Nvidia GeForce GTX 660 Ti

VS
Nvidia GeForce GTX 1080 Ti
Nvidia GeForce GTX 1080 Ti Image
Nvidia GeForce GTX 660 Ti
Nvidia GeForce GTX 660 Ti Image
Nvidia GeForce GTX 1080 Ti
Nvidia GeForce GTX 660 Ti
Key Differences Key Differences Nvidia GeForce GTX 1080 Ti Nvidia GeForce GTX 660 Ti
GPU Base Clock Speed 1480MHz 915MHz
GPU Boost Clock Speed 1582MHz 980MHz
Pixel Rate 130.2 GPixel/s 25.6 GPixel/s
GPU Memory Speed 1376MHz 1502MHz
GPU Render Output Units (ROPs) 88 24
No. of Supported Displays 3 4
Performance Performance Nvidia GeForce GTX 1080 Ti Nvidia GeForce GTX 660 Ti
GPU Base Clock Speed 1480MHz 915MHz
Pixel Rate 130.2 GPixel/s 25.6 GPixel/s
FLOPS (Floating-point Performance) 10.6 TFLOPS 2.46 TFLOPS
GPU Memory Speed 1376MHz 1502MHz
Texture Filter Rate 332 GTexels/s 102 GTexels/s
Total GPU Shading Units 3584 1344
Total GPU TMUs 224 112
GPU Boost Clock Speed 1582MHz 980MHz
GPU Render Output Units (ROPs) 88 24
DPFP (Double Precision Floating Point) Support Yes No
Features Features Nvidia GeForce GTX 1080 Ti Nvidia GeForce GTX 660 Ti
DirectX Version Info 12 11
OpenGL Driver Version 4.5 4.3
OpenCL Driver Version 1.2 1.1
Multi-display Tech Support Yes Yes
3D Support Yes Yes
Multi-GPU Support Count 4 3
Ray Tracing Support Yes No
No. of Supported Displays 3 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
SmallLuxGPU (2.0d4) Result Not Known 6200
Ports Ports Nvidia GeForce GTX 1080 Ti Nvidia GeForce GTX 660 Ti
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 Nvidia GeForce GTX 1080 Ti Nvidia GeForce GTX 660 Ti
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 12000 million 3540 million
Semiconductor Size 16nm 28nm
PCI Express Version 3 3
Width Size 266.7mm 241mm
Height 111.2mm 111mm
Dual-GPU Support No No
Air-water Cooling Support No No
Memory Memory Nvidia GeForce GTX 1080 Ti Nvidia GeForce GTX 660 Ti
Effective Memory Clock 11008MHz 6008MHz
Max Memory Bandwidth 484GB/s 144GB/s
RAM 11GB 2GB
Memory Bus Interface Width 352bit 192bit
GDDR Memory Version 5 5
ECC (Error-Correcting Code) Memory Support No No

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