Gigabyte GeForce Aorus RTX 2080 Ti vs Gainward GeForce GT 640 2GB

VS
Gigabyte GeForce Aorus RTX 2080 Ti
Gigabyte GeForce Aorus RTX 2080 Ti Image
Gainward GeForce GT 640 2GB
Gainward GeForce GT 640 2GB Image
Gigabyte GeForce Aorus RTX 2080 Ti
Gainward GeForce GT 640 2GB
Key Differences Key Differences Gigabyte GeForce Aorus RTX 2080 Ti Gainward GeForce GT 640 2GB
GPU Base Clock Speed 1350MHz 900MHz
GPU Boost Clock Speed 1695MHz Not Known
Pixel Rate 149.2 GPixel/s 7.22 GPixel/s
GPU Memory Speed 1750MHz 891MHz
GPU Render Output Units (ROPs) 88 16
No. of Supported Displays 4 Not Known
Performance Performance Gigabyte GeForce Aorus RTX 2080 Ti Gainward GeForce GT 640 2GB
GPU Base Clock Speed 1350MHz 900MHz
Pixel Rate 149.2 GPixel/s 7.22 GPixel/s
FLOPS (Floating-point Performance) 14.75 TFLOPS 0.69 TFLOPS
GPU Memory Speed 1750MHz 891MHz
Texture Filter Rate 461 GTexels/s 28.8 GTexels/s
Total GPU Shading Units 4352 384
Total GPU TMUs 272 32
GPU Boost Clock Speed 1695MHz Not Known
GPU Render Output Units (ROPs) 88 16
DPFP (Double Precision Floating Point) Support No No
Features Features Gigabyte GeForce Aorus RTX 2080 Ti Gainward GeForce GT 640 2GB
DirectX Version Info 12 11
OpenGL Driver Version 4.5 4.3
OpenCL Driver Version 2 1.1
Multi-display Tech Support Yes Yes
GPU Temperature Under Load 77°C Not Known
Idle GPU Temperature 31°C Not Known
Noise Level Under Load 47.5dB Not Known
3D Support Yes Yes
Idle Noise Level 41.5dB Not Known
Idle Power Consumption 54W Not Known
Multi-GPU Support Count 2 Not Known
No. of Supported Displays 4 Not Known
PassMark (G3D) Score Not Known 644
PassMark (DirectCompute) Benchmark Result Not Known 1297
Ray Tracing Support Yes No
Miscellaneous Miscellaneous Gigabyte GeForce Aorus RTX 2080 Ti Gainward GeForce GT 640 2GB
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports Gigabyte GeForce Aorus RTX 2080 Ti Gainward GeForce GT 640 2GB
HDMI Output Support Yes Yes
GPU HDMI Version 2 Not Known
DisplayPort Output 3 0
No. of HDMI Ports 3 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 0
General info General info Gigabyte GeForce Aorus RTX 2080 Ti Gainward GeForce GT 640 2GB
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 18600 million 1270 million
Semiconductor Size 12nm 28nm
PCI Express Version 3 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 290mm 150mm
Height 134.31mm 111mm
Memory Memory Gigabyte GeForce Aorus RTX 2080 Ti Gainward GeForce GT 640 2GB
Effective Memory Clock 14000MHz 1782MHz
Max Memory Bandwidth 616GB/s 28.5GB/s
RAM 11GB 2GB
Memory Bus Interface Width 352bit 128bit
GDDR Memory Version 6 Not Known
ECC (Error-Correcting Code) Memory Support No No

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