Nvidia GeForce RTX 2080 Super vs Nvidia GeForce GT 640 GDDR5

VS
Nvidia GeForce RTX 2080 Super
Nvidia GeForce RTX 2080 Super Image
Nvidia GeForce GT 640 GDDR5
Nvidia GeForce GT 640 GDDR5 Image
Nvidia GeForce RTX 2080 Super
Nvidia GeForce GT 640 GDDR5
Key Differences Key Differences Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 GDDR5
GPU Base Clock Speed 1650MHz 1046MHz
GPU Boost Clock Speed 1815MHz Not Known
Pixel Rate 116.2 GPixel/s 8.37 GPixel/s
GPU Memory Speed 1937MHz 1252MHz
GPU Render Output Units (ROPs) 64 8
No. of Supported Displays 4 Not Known
Performance Performance Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 GDDR5
GPU Base Clock Speed 1650MHz 1046MHz
Pixel Rate 116.2 GPixel/s 8.37 GPixel/s
FLOPS (Floating-point Performance) 11.15 TFLOPS 0.8 TFLOPS
Texture Filter Rate 348.5 GTexels/s 16.7 GTexels/s
GPU Memory Speed 1937MHz 1252MHz
Total GPU Shading Units 3072 384
Total GPU TMUs 192 16
GPU Boost Clock Speed 1815MHz Not Known
GPU Render Output Units (ROPs) 64 8
DPFP (Double Precision Floating Point) Support Yes No
Features Features Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 GDDR5
DirectX Version Info 12 11.1
OpenGL Driver Version 4.6 4.3
OpenCL Driver Version 1.2 1.1
Multi-display Tech Support Yes Yes
GPU Temperature Under Load 77°C Not Known
Idle GPU Temperature 30°C Not Known
Noise Level Under Load 46.5dB Not Known
3D Support Yes Yes
Idle Noise Level 40.3dB Not Known
Idle Power Consumption 54W 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
Ports Ports Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 GDDR5
HDMI Output Support Yes Yes
GPU HDMI Version 2 Not Known
DisplayPort Output 3 0
No. of HDMI Ports 1 Not Known
DVI Output Ports 1 1
Mini DisplayPort Output 0 0
General info General info Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 GDDR5
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 13600 million 1270 million
Semiconductor Size 12nm 28nm
PCI Express Version 3 2
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 266.74mm 145mm
Height 115.7mm 111mm
Memory Memory Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 GDDR5
Effective Memory Clock 15496MHz 5008MHz
Max Memory Bandwidth 495.9GB/s 40GB/s
RAM 8GB 1GB
Memory Bus Interface Width 256bit 64bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support Yes No

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