KFA2 GeForce RTX 3080 SG 1-Click OC vs Zotac GeForce GT 640 2GB

VS
KFA2 GeForce RTX 3080 SG 1-Click OC
KFA2 GeForce RTX 3080 SG 1-Click OC Image
Zotac GeForce GT 640 2GB
Zotac GeForce GT 640 2GB Image
KFA2 GeForce RTX 3080 SG 1-Click OC
Zotac GeForce GT 640 2GB
Key Differences Key Differences KFA2 GeForce RTX 3080 SG 1-Click OC Zotac GeForce GT 640 2GB
GPU Base Clock Speed 1440MHz 1046MHz
GPU Boost Clock Speed 1710MHz Not Known
Pixel Rate 164.2 GPixel/s 7.22 GPixel/s
GPU Memory Speed 1188MHz 1250MHz
GPU Render Output Units (ROPs) 96 16
No. of Supported Displays Not Known Not Known
Performance Performance KFA2 GeForce RTX 3080 SG 1-Click OC Zotac GeForce GT 640 2GB
GPU Base Clock Speed 1440MHz 1046MHz
Pixel Rate 164.2 GPixel/s 7.22 GPixel/s
FLOPS (Floating-point Performance) 29.77 TFLOPS 0.69 TFLOPS
GPU Memory Speed 1188MHz 1250MHz
Texture Filter Rate 465.1 GTexels/s 28.8 GTexels/s
Total GPU Shading Units 8704 384
Total GPU TMUs 272 32
GPU Boost Clock Speed 1710MHz Not Known
GPU Render Output Units (ROPs) 96 16
DPFP (Double Precision Floating Point) Support No No
Features Features KFA2 GeForce RTX 3080 SG 1-Click OC Zotac GeForce GT 640 2GB
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
Ray Tracing Support Yes No
Ports Ports KFA2 GeForce RTX 3080 SG 1-Click OC Zotac GeForce GT 640 2GB
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 3 0
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 0
General info General info KFA2 GeForce RTX 3080 SG 1-Click OC Zotac GeForce GT 640 2GB
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 28000 million 1270 million
Semiconductor Size 8nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 329mm 145mm
Height 130mm 111mm
Memory Memory KFA2 GeForce RTX 3080 SG 1-Click OC Zotac GeForce GT 640 2GB
Effective Memory Clock 19000MHz 5000MHz
Max Memory Bandwidth 720GB/s 28.5GB/s
RAM 10GB 2GB
Memory Bus Interface Width 320bit 128bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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