Sapphire Radeon RX 6800 XT vs Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB

VS
Sapphire Radeon RX 6800 XT
Sapphire Radeon RX 6800 XT Image
Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB Image
Sapphire Radeon RX 6800 XT
Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
Key Differences Key Differences Sapphire Radeon RX 6800 XT Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
GPU Base Clock Speed 1825MHz 720MHz
GPU Boost Clock Speed 2250MHz Not Known
Pixel Rate 288 GPixel/s 6.38 GPixel/s
GPU Memory Speed 2000MHz 891MHz
GPU Render Output Units (ROPs) 128 Not Known
No. of Supported Displays 4 Not Known
Performance Performance Sapphire Radeon RX 6800 XT Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
GPU Base Clock Speed 1825MHz 720MHz
Pixel Rate 288 GPixel/s 6.38 GPixel/s
FLOPS (Floating-point Performance) 20.74 TFLOPS 0.61 TFLOPS
GPU Memory Speed 2000MHz 891MHz
Texture Filter Rate 648 GTexels/s 17 GTexels/s
Total GPU Shading Units 4608 144
Total GPU TMUs 288 Not Known
GPU Boost Clock Speed 2250MHz Not Known
GPU Render Output Units (ROPs) 128 Not Known
DPFP (Double Precision Floating Point) Support No No
Features Features Sapphire Radeon RX 6800 XT Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
DirectX Version Info 12 11
OpenGL Driver Version 4.6 4.3
OpenCL Driver Version 2 Not Known
Multi-display Tech Support Yes No
3D Support Yes Yes
Multi-GPU Support Count 0 Not Known
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
Miscellaneous Miscellaneous Sapphire Radeon RX 6800 XT Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports Sapphire Radeon RX 6800 XT Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
HDMI Output Support Yes Yes
DisplayPort Output 2 0
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 0
General info General info Sapphire Radeon RX 6800 XT Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 26800 million 1270 million
Semiconductor Size 7nm 28nm
PCI Express Version 4 2
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 266.7mm 145mm
Height 119.8mm 111mm
Memory Memory Sapphire Radeon RX 6800 XT Nvidia GeForce GT 640 OEM 192-bit DDR3 1.5GB
Effective Memory Clock 16000MHz 1782MHz
Max Memory Bandwidth 512GB/s 43GB/s
RAM 16GB 2GB
Memory Bus Interface Width 256bit 192bit
GDDR Memory Version 6 Not Known
ECC (Error-Correcting Code) Memory Support No No

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