Gainward GeForce RTX 3090 Phantom GS vs Zotac GeForce GTX 660

VS
Gainward GeForce RTX 3090 Phantom GS
Gainward GeForce RTX 3090 Phantom GS Image
Zotac GeForce GTX 660
Zotac GeForce GTX 660 Image
Gainward GeForce RTX 3090 Phantom GS
Zotac GeForce GTX 660
Key Differences Key Differences Gainward GeForce RTX 3090 Phantom GS Zotac GeForce GTX 660
GPU Base Clock Speed 1395MHz 993MHz
GPU Boost Clock Speed 1845MHz 1058MHz
Pixel Rate 206.6 GPixel/s 19.9 GPixel/s
GPU Memory Speed 1219MHz 1502MHz
GPU Render Output Units (ROPs) 112 24
No. of Supported Displays Not Known 4
Performance Performance Gainward GeForce RTX 3090 Phantom GS Zotac GeForce GTX 660
GPU Base Clock Speed 1395MHz 993MHz
Pixel Rate 206.6 GPixel/s 19.9 GPixel/s
FLOPS (Floating-point Performance) 38.73 TFLOPS 1.91 TFLOPS
GPU Memory Speed 1219MHz 1502MHz
Texture Filter Rate 605.2 GTexels/s 79.4 GTexels/s
Total GPU Shading Units 10496 960
Total GPU TMUs 328 80
GPU Boost Clock Speed 1845MHz 1058MHz
GPU Render Output Units (ROPs) 112 24
DPFP (Double Precision Floating Point) Support No No
Features Features Gainward GeForce RTX 3090 Phantom GS Zotac GeForce GTX 660
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
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 Yes 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
No. of Supported Displays Not Known 4
Ports Ports Gainward GeForce RTX 3090 Phantom GS Zotac GeForce GTX 660
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 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 Gainward GeForce RTX 3090 Phantom GS Zotac GeForce GTX 660
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 28300 million 2540 million
Semiconductor Size 8nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 304mm 191mm
Height 136mm 111mm
Memory Memory Gainward GeForce RTX 3090 Phantom GS Zotac GeForce GTX 660
Effective Memory Clock 9750MHz 6008MHz
Max Memory Bandwidth 936GB/s 144GB/s
RAM 24GB 2GB
Memory Bus Interface Width 384bit 192bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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