Nvidia GeForce RTX 2080 Super vs Nvidia GeForce GT 640 OEM 128-bit DDR3 1GB

VS
Nvidia GeForce RTX 2080 Super
Nvidia GeForce RTX 2080 Super Image
Nvidia GeForce GT 640 OEM 128-bit DDR3 1GB
Nvidia GeForce GT 640 OEM 128-bit DDR3 1GB Image
Nvidia GeForce RTX 2080 Super
Nvidia GeForce GT 640 OEM 128-bit DDR3 1GB
Key Differences Key Differences Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 OEM 128-bit DDR3 1GB
GPU Base Clock Speed 1650MHz 797MHz
GPU Boost Clock Speed 1815MHz Not Known
Pixel Rate 116.2 GPixel/s 6.38 GPixel/s
GPU Memory Speed 1937MHz 891MHz
GPU Render Output Units (ROPs) 64 16
No. of Supported Displays 4 Not Known
Performance Performance Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 OEM 128-bit DDR3 1GB
GPU Base Clock Speed 1650MHz 797MHz
Pixel Rate 116.2 GPixel/s 6.38 GPixel/s
FLOPS (Floating-point Performance) 11.15 TFLOPS 0.73 TFLOPS
Texture Filter Rate 348.5 GTexels/s 25.5 GTexels/s
GPU Memory Speed 1937MHz 891MHz
Total GPU Shading Units 3072 384
Total GPU TMUs 192 32
GPU Boost Clock Speed 1815MHz Not Known
GPU Render Output Units (ROPs) 64 16
DPFP (Double Precision Floating Point) Support Yes No
Features Features Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 OEM 128-bit DDR3 1GB
DirectX Version Info 12 11
OpenGL Driver Version 4.6 4.3
OpenCL Driver Version 1.2 Not Known
Multi-display Tech Support Yes No
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 OEM 128-bit DDR3 1GB
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 OEM 128-bit DDR3 1GB
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 13600 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 266.74mm 145mm
Height 115.7mm 111mm
Memory Memory Nvidia GeForce RTX 2080 Super Nvidia GeForce GT 640 OEM 128-bit DDR3 1GB
Effective Memory Clock 15496MHz 1782MHz
Max Memory Bandwidth 495.9GB/s 28.5GB/s
RAM 8GB 1GB
Memory Bus Interface Width 256bit 128bit
GDDR Memory Version 6 Not Known
ECC (Error-Correcting Code) Memory Support Yes No

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