Nvidia GeForce RTX 3070 vs Nvidia GeForce GT 640 GDDR5

VS
Nvidia GeForce RTX 3070
Nvidia GeForce RTX 3070 Image
Nvidia GeForce GT 640 GDDR5
Nvidia GeForce GT 640 GDDR5 Image
Nvidia GeForce RTX 3070
Nvidia GeForce GT 640 GDDR5
Key Differences Key Differences Nvidia GeForce RTX 3070 Nvidia GeForce GT 640 GDDR5
GPU Base Clock Speed 1500MHz 1046MHz
GPU Boost Clock Speed 1725MHz Not Known
Pixel Rate 165.6 GPixel/s 8.37 GPixel/s
GPU Memory Speed 1750MHz 1252MHz
GPU Render Output Units (ROPs) 96 8
No. of Supported Displays 4 Not Known
Performance Performance Nvidia GeForce RTX 3070 Nvidia GeForce GT 640 GDDR5
GPU Base Clock Speed 1500MHz 1046MHz
Pixel Rate 165.6 GPixel/s 8.37 GPixel/s
FLOPS (Floating-point Performance) 20.31 TFLOPS 0.8 TFLOPS
GPU Memory Speed 1750MHz 1252MHz
Texture Filter Rate 317.4 GTexels/s 16.7 GTexels/s
Total GPU Shading Units 5888 384
Total GPU TMUs 184 16
GPU Boost Clock Speed 1725MHz Not Known
GPU Render Output Units (ROPs) 96 8
DPFP (Double Precision Floating Point) Support No No
Features Features Nvidia GeForce RTX 3070 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
Ray Tracing Support Yes No
No. of Supported Displays 4 Not Known
PassMark (G3D) Score Not Known 644
PassMark (DirectCompute) Benchmark Result Not Known 1297
Ports Ports Nvidia GeForce RTX 3070 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 Nvidia GeForce RTX 3070 Nvidia GeForce GT 640 GDDR5
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 17400 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 242mm 145mm
Height 112mm 111mm
Memory Memory Nvidia GeForce RTX 3070 Nvidia GeForce GT 640 GDDR5
Effective Memory Clock 14000MHz 5008MHz
Max Memory Bandwidth 448GB/s 40GB/s
RAM 8GB 1GB
Memory Bus Interface Width 256bit 64bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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