KFA2 GeForce RTX 3090 SG 1-Click OC vs Nvidia GeForce GT 640 GDDR5

VS
KFA2 GeForce RTX 3090 SG 1-Click OC
KFA2 GeForce RTX 3090 SG 1-Click OC Image
Nvidia GeForce GT 640 GDDR5
Nvidia GeForce GT 640 GDDR5 Image
KFA2 GeForce RTX 3090 SG 1-Click OC
Nvidia GeForce GT 640 GDDR5
Key Differences Key Differences KFA2 GeForce RTX 3090 SG 1-Click OC Nvidia GeForce GT 640 GDDR5
GPU Base Clock Speed 1395MHz 1046MHz
GPU Boost Clock Speed 1695MHz Not Known
Pixel Rate 189.8 GPixel/s 8.37 GPixel/s
GPU Memory Speed 1219MHz 1252MHz
GPU Render Output Units (ROPs) 112 8
No. of Supported Displays Not Known Not Known
Performance Performance KFA2 GeForce RTX 3090 SG 1-Click OC Nvidia GeForce GT 640 GDDR5
GPU Base Clock Speed 1395MHz 1046MHz
Pixel Rate 189.8 GPixel/s 8.37 GPixel/s
FLOPS (Floating-point Performance) 35.58 TFLOPS 0.8 TFLOPS
GPU Memory Speed 1219MHz 1252MHz
Texture Filter Rate 556 GTexels/s 16.7 GTexels/s
Total GPU Shading Units 10496 384
Total GPU TMUs 328 16
GPU Boost Clock Speed 1695MHz Not Known
GPU Render Output Units (ROPs) 112 8
DPFP (Double Precision Floating Point) Support No No
Features Features KFA2 GeForce RTX 3090 SG 1-Click OC Nvidia GeForce GT 640 GDDR5
DirectX Version Info 12 11.1
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 644
PassMark (DirectCompute) Benchmark Result Not Known 1297
Ray Tracing Support Yes No
Ports Ports KFA2 GeForce RTX 3090 SG 1-Click OC Nvidia GeForce GT 640 GDDR5
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 3090 SG 1-Click OC Nvidia GeForce GT 640 GDDR5
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 28000 million 1270 million
Semiconductor Size 8nm 28nm
PCI Express Version 4 2
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 329mm 145mm
Height 130mm 111mm
Memory Memory KFA2 GeForce RTX 3090 SG 1-Click OC Nvidia GeForce GT 640 GDDR5
Effective Memory Clock 9750MHz 5008MHz
Max Memory Bandwidth 936GB/s 40GB/s
RAM 24GB 1GB
Memory Bus Interface Width 384bit 64bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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