Gainward GeForce RTX 3080 Phantom GS vs Zotac GeForce GT 640 1GB

VS
Gainward GeForce RTX 3080 Phantom GS
Gainward GeForce RTX 3080 Phantom GS Image
Zotac GeForce GT 640 1GB
Zotac GeForce GT 640 1GB Image
Gainward GeForce RTX 3080 Phantom GS
Zotac GeForce GT 640 1GB
Key Differences Key Differences Gainward GeForce RTX 3080 Phantom GS Zotac GeForce GT 640 1GB
GPU Base Clock Speed 1440MHz 1046MHz
GPU Boost Clock Speed 1830MHz Not Known
Pixel Rate 175.7 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 Gainward GeForce RTX 3080 Phantom GS Zotac GeForce GT 640 1GB
GPU Base Clock Speed 1440MHz 1046MHz
Pixel Rate 175.7 GPixel/s 7.22 GPixel/s
FLOPS (Floating-point Performance) 31.86 TFLOPS 0.69 TFLOPS
GPU Memory Speed 1188MHz 1250MHz
Texture Filter Rate 497.8 GTexels/s 28.8 GTexels/s
Total GPU Shading Units 8704 384
Total GPU TMUs 272 32
GPU Boost Clock Speed 1830MHz Not Known
GPU Render Output Units (ROPs) 96 16
DPFP (Double Precision Floating Point) Support No No
Features Features Gainward GeForce RTX 3080 Phantom GS Zotac GeForce GT 640 1GB
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 Gainward GeForce RTX 3080 Phantom GS Zotac GeForce GT 640 1GB
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 Gainward GeForce RTX 3080 Phantom GS Zotac GeForce GT 640 1GB
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 28300 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 304mm 145mm
Height 136mm 111mm
Memory Memory Gainward GeForce RTX 3080 Phantom GS Zotac GeForce GT 640 1GB
Effective Memory Clock 19000MHz 5000MHz
Max Memory Bandwidth 760GB/s 28.5GB/s
RAM 10GB 1GB
Memory Bus Interface Width 320bit 64bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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