Asus GeForce Dual RTX 2080 Ti vs Gainward GeForce GTX 660 Ti Phantom

VS
Asus GeForce Dual RTX 2080 Ti
Asus GeForce Dual RTX 2080 Ti Image
Gainward GeForce GTX 660 Ti Phantom
Gainward GeForce GTX 660 Ti Phantom Image
Asus GeForce Dual RTX 2080 Ti
Gainward GeForce GTX 660 Ti Phantom
Key Differences Key Differences Asus GeForce Dual RTX 2080 Ti Gainward GeForce GTX 660 Ti Phantom
GPU Base Clock Speed 1350MHz 1006MHz
GPU Boost Clock Speed 1545MHz 1084MHz
Pixel Rate 136 GPixel/s 28.2 GPixel/s
GPU Memory Speed 1750MHz 1527MHz
GPU Render Output Units (ROPs) 88 24
No. of Supported Displays 4 4
Performance Performance Asus GeForce Dual RTX 2080 Ti Gainward GeForce GTX 660 Ti Phantom
GPU Base Clock Speed 1350MHz 1006MHz
Pixel Rate 136 GPixel/s 28.2 GPixel/s
FLOPS (Floating-point Performance) 13.45 TFLOPS 2.7 TFLOPS
GPU Memory Speed 1750MHz 1527MHz
Texture Filter Rate 420.2 GTexels/s 113 GTexels/s
Total GPU Shading Units 4352 1344
Total GPU TMUs 272 112
GPU Boost Clock Speed 1545MHz 1084MHz
GPU Render Output Units (ROPs) 88 24
DPFP (Double Precision Floating Point) Support No No
Features Features Asus GeForce Dual RTX 2080 Ti Gainward GeForce GTX 660 Ti Phantom
DirectX Version Info 12 11
OpenGL Driver Version 4.5 4.3
OpenCL Driver Version 2 1.1
Multi-display Tech Support Yes Yes
GPU Temperature Under Load 77°C 75°C
Idle GPU Temperature 31°C 31°C
3D Support Yes Yes
Noise Level Under Load 47.5dB 47.9dB
Idle Noise Level 41.5dB 41.8dB
Idle Power Consumption 54W 111W
Multi-GPU Support Count 2 3
No. of Supported Displays 4 4
PassMark (G3D) Score Not Known 4692
3DMark Vantage Texture Fill Result Not Known 86.4GTexels/s
3DMark Vantage Pixel Fill Result Not Known 10.4GPixel/s
PassMark (DirectCompute) Benchmark Result Not Known 2547
Ray Tracing Support No No
Power Consumption Under Peak Load Not Known 318W
SmallLuxGPU (2.0d4) Result Not Known 6200
Miscellaneous Miscellaneous Asus GeForce Dual RTX 2080 Ti Gainward GeForce GTX 660 Ti Phantom
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports Asus GeForce Dual RTX 2080 Ti Gainward GeForce GTX 660 Ti Phantom
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 Asus GeForce Dual RTX 2080 Ti Gainward GeForce GTX 660 Ti Phantom
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 18600 million 3540 million
Semiconductor Size 12nm 28nm
PCI Express Version 3 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 268mm 247mm
Height 114mm 111mm
Memory Memory Asus GeForce Dual RTX 2080 Ti Gainward GeForce GTX 660 Ti Phantom
Effective Memory Clock 14000MHz 6108MHz
Max Memory Bandwidth 616GB/s 147GB/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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