KFA2 GeForce RTX 2080 Ti vs Zotac GeForce GT 640 2GB

VS
KFA2 GeForce RTX 2080 Ti
KFA2 GeForce RTX 2080 Ti Image
Zotac GeForce GT 640 2GB
Zotac GeForce GT 640 2GB Image
KFA2 GeForce RTX 2080 Ti
Zotac GeForce GT 640 2GB
Key Differences Key Differences KFA2 GeForce RTX 2080 Ti Zotac GeForce GT 640 2GB
GPU Base Clock Speed 1350MHz 1046MHz
GPU Boost Clock Speed 1545MHz Not Known
Pixel Rate 136 GPixel/s 7.22 GPixel/s
GPU Memory Speed 1750MHz 1250MHz
GPU Render Output Units (ROPs) 88 16
No. of Supported Displays 4 Not Known
Performance Performance KFA2 GeForce RTX 2080 Ti Zotac GeForce GT 640 2GB
GPU Base Clock Speed 1350MHz 1046MHz
Pixel Rate 136 GPixel/s 7.22 GPixel/s
FLOPS (Floating-point Performance) 13.45 TFLOPS 0.69 TFLOPS
Texture Filter Rate 420.2 GTexels/s 28.8 GTexels/s
GPU Memory Speed 1750MHz 1250MHz
Total GPU Shading Units 4352 384
Total GPU TMUs 272 32
GPU Boost Clock Speed 1545MHz Not Known
GPU Render Output Units (ROPs) 88 16
DPFP (Double Precision Floating Point) Support No No
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Features Features KFA2 GeForce RTX 2080 Ti Zotac GeForce GT 640 2GB
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 Not Known
Idle GPU Temperature 31°C Not Known
Noise Level Under Load 47.5dB Not Known
3D Support Yes Yes
Idle Noise Level 41.5dB Not Known
Idle Power Consumption 54W Not Known
Multi-GPU Support Count 2 Not Known
No. of Supported Displays 4 Not Known
Ray Tracing Support No No
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Miscellaneous Miscellaneous KFA2 GeForce RTX 2080 Ti Zotac GeForce GT 640 2GB
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports KFA2 GeForce RTX 2080 Ti Zotac GeForce GT 640 2GB
HDMI Output Support Yes Yes
GPU HDMI Version 2 Not Known
DisplayPort Output 3 0
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 0
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General info General info KFA2 GeForce RTX 2080 Ti Zotac GeForce GT 640 2GB
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 18600 million 1270 million
Semiconductor Size 12nm 28nm
PCI Express Version 3 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 267mm 145mm
Height Not Known 111mm
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Memory Memory KFA2 GeForce RTX 2080 Ti Zotac GeForce GT 640 2GB
Effective Memory Clock 14000MHz 5000MHz
Max Memory Bandwidth 616GB/s 28.5GB/s
RAM 11GB 2GB
Memory Bus Interface Width 352bit 128bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No
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