Zotac GeForce RTX 3070 Twin Edge vs Nvidia GeForce GT 640

VS
Zotac GeForce RTX 3070 Twin Edge
Zotac GeForce RTX 3070 Twin Edge Image
Nvidia GeForce GT 640
Nvidia GeForce GT 640 Image
Zotac GeForce RTX 3070 Twin Edge
Nvidia GeForce GT 640
Key Differences Key Differences Zotac GeForce RTX 3070 Twin Edge Nvidia GeForce GT 640
GPU Base Clock Speed 1500MHz 902MHz
GPU Boost Clock Speed 1725MHz Not Known
Pixel Rate 110.4 GPixel/s 7.22 GPixel/s
GPU Memory Speed 1750MHz 891MHz
GPU Render Output Units (ROPs) 64 16
No. of Supported Displays 4 Not Known
Performance Performance Zotac GeForce RTX 3070 Twin Edge Nvidia GeForce GT 640
GPU Base Clock Speed 1500MHz 902MHz
Pixel Rate 110.4 GPixel/s 7.22 GPixel/s
FLOPS (Floating-point Performance) 20.31 TFLOPS 0.69 TFLOPS
GPU Memory Speed 1750MHz 891MHz
Texture Filter Rate 317.4 GTexels/s 28.9 GTexels/s
Total GPU Shading Units 5888 384
Total GPU TMUs 184 32
GPU Boost Clock Speed 1725MHz Not Known
GPU Render Output Units (ROPs) 64 16
DPFP (Double Precision Floating Point) Support No No
Features Features Zotac GeForce RTX 3070 Twin Edge Nvidia GeForce GT 640
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
No. of Supported Displays 4 Not Known
PassMark (G3D) Score Not Known 644
PassMark (DirectCompute) Benchmark Result Not Known 1297
Ports Ports Zotac GeForce RTX 3070 Twin Edge Nvidia GeForce GT 640
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 2
Mini DisplayPort Output 0 0
General info General info Zotac GeForce RTX 3070 Twin Edge Nvidia GeForce GT 640
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 17400 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 231.9mm 145mm
Height 141.3mm 111mm
Memory Memory Zotac GeForce RTX 3070 Twin Edge Nvidia GeForce GT 640
Max Memory Bandwidth 448GB/s 28.5GB/s
RAM 8GB 2GB
Memory Bus Interface Width 256bit 128bit
GDDR Memory Version 6 Not Known
Effective Memory Clock Not Known 1782MHz
ECC (Error-Correcting Code) Memory Support No No

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