KFA2 GeForce RTX 2080 vs Zotac GeForce GTX 660

VS
KFA2 GeForce RTX 2080
KFA2 GeForce RTX 2080 Image
Zotac GeForce GTX 660
Zotac GeForce GTX 660 Image
KFA2 GeForce RTX 2080
Zotac GeForce GTX 660
Key Differences Key Differences KFA2 GeForce RTX 2080 Zotac GeForce GTX 660
GPU Base Clock Speed 1515MHz 993MHz
GPU Boost Clock Speed 1710MHz 1058MHz
Pixel Rate 109.4 GPixel/s 19.9 GPixel/s
GPU Memory Speed 1750MHz 1502MHz
GPU Render Output Units (ROPs) 64 24
No. of Supported Displays Not Known 4
Performance Performance KFA2 GeForce RTX 2080 Zotac GeForce GTX 660
GPU Base Clock Speed 1515MHz 993MHz
Pixel Rate 109.4 GPixel/s 19.9 GPixel/s
FLOPS (Floating-point Performance) 10.07 TFLOPS 1.91 TFLOPS
Texture Filter Rate 314.6 GTexels/s 79.4 GTexels/s
GPU Memory Speed 1750MHz 1502MHz
Total GPU Shading Units 2944 960
Total GPU TMUs 184 80
GPU Boost Clock Speed 1710MHz 1058MHz
GPU Render Output Units (ROPs) 64 24
DPFP (Double Precision Floating Point) Support No No
Features Features KFA2 GeForce RTX 2080 Zotac GeForce GTX 660
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
GPU Temperature Under Load 74°C 72°C
Idle GPU Temperature 30°C 30°C
3D Support Yes Yes
Noise Level Under Load 45dB 47.4dB
Idle Power Consumption 53W 110W
Idle Noise Level 40.3dB 40.8dB
Multi-GPU Support Count 2 Not Known
PassMark (G3D) Score Not Known 4104
3DMark Vantage Texture Fill Result Not Known 65.3GTexels/s
3DMark Vantage Pixel Fill Result Not Known 9.9GPixel/s
PassMark (DirectCompute) Benchmark Result Not Known 1933
Ray Tracing Support No No
Power Consumption Under Peak Load Not Known 296W
No. of Supported Displays Not Known 4
SmallLuxGPU (2.0d4) Result Not Known 5000
Miscellaneous Miscellaneous KFA2 GeForce RTX 2080 Zotac GeForce GTX 660
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports KFA2 GeForce RTX 2080 Zotac GeForce GTX 660
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 KFA2 GeForce RTX 2080 Zotac GeForce GTX 660
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 13600 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 283mm 191mm
Height 139mm 111mm
Memory Memory KFA2 GeForce RTX 2080 Zotac GeForce GTX 660
Effective Memory Clock 14000MHz 6008MHz
Max Memory Bandwidth 448GB/s 144GB/s
RAM 8GB 2GB
Memory Bus Interface Width 256bit 192bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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