EVGA GeForce RTX 3090 FTW3 Ultra Gaming vs Nvidia GeForce GTX 660 OEM

VS
EVGA GeForce RTX 3090 FTW3 Ultra Gaming
EVGA GeForce RTX 3090 FTW3 Ultra Gaming Image
Nvidia GeForce GTX 660 OEM
Nvidia GeForce GTX 660 OEM Image
EVGA GeForce RTX 3090 FTW3 Ultra Gaming
Nvidia GeForce GTX 660 OEM
Key Differences Key Differences EVGA GeForce RTX 3090 FTW3 Ultra Gaming Nvidia GeForce GTX 660 OEM
GPU Base Clock Speed 1395MHz 823MHz
GPU Boost Clock Speed 1800MHz 888MHz
Pixel Rate 201.6 GPixel/s 19.8 GPixel/s
GPU Memory Speed 1219MHz Not Known
GPU Render Output Units (ROPs) 112 32
No. of Supported Displays 4 4
Performance Performance EVGA GeForce RTX 3090 FTW3 Ultra Gaming Nvidia GeForce GTX 660 OEM
GPU Base Clock Speed 1395MHz 823MHz
Pixel Rate 201.6 GPixel/s 19.8 GPixel/s
FLOPS (Floating-point Performance) 37.79 TFLOPS 1.9 TFLOPS
GPU Memory Speed 1219MHz Not Known
Texture Filter Rate 590.4 GTexels/s 79 GTexels/s
Total GPU Shading Units 10496 1152
Total GPU TMUs 328 98
GPU Boost Clock Speed 1800MHz 888MHz
GPU Render Output Units (ROPs) 112 32
DPFP (Double Precision Floating Point) Support No No
Features Features EVGA GeForce RTX 3090 FTW3 Ultra Gaming Nvidia GeForce GTX 660 OEM
DirectX Version Info 12 11
OpenGL Driver Version 4.6 4.3
OpenCL Driver Version 2 1.1
Multi-display Tech Support Yes No
3D Support Yes Yes
No. of Supported Displays 4 4
Ray Tracing Support Yes No
Ports Ports EVGA GeForce RTX 3090 FTW3 Ultra Gaming Nvidia GeForce GTX 660 OEM
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 Not Known
General info General info EVGA GeForce RTX 3090 FTW3 Ultra Gaming Nvidia GeForce GTX 660 OEM
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 28300 million 3540 million
Semiconductor Size 8nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 300mm 241mm
Height 136.8mm 111mm
Memory Memory EVGA GeForce RTX 3090 FTW3 Ultra Gaming Nvidia GeForce GTX 660 OEM
Effective Memory Clock 19500MHz 5600MHz
Max Memory Bandwidth 936GB/s 179GB/s
RAM 24GB 2GB
Memory Bus Interface Width 384bit 256bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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