Gigabyte Radeon RX 6800 XT vs Nvidia GeForce GT 640 GDDR5

VS
Gigabyte Radeon RX 6800 XT
Gigabyte Radeon RX 6800 XT Image
Nvidia GeForce GT 640 GDDR5
Nvidia GeForce GT 640 GDDR5 Image
Gigabyte Radeon RX 6800 XT
Nvidia GeForce GT 640 GDDR5
Key Differences Key Differences Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640 GDDR5
GPU Base Clock Speed 1825MHz 1046MHz
GPU Boost Clock Speed 2250MHz Not Known
Pixel Rate 288 GPixel/s 8.37 GPixel/s
GPU Memory Speed 2000MHz 1252MHz
GPU Render Output Units (ROPs) 128 8
No. of Supported Displays 4 Not Known
Performance Performance Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640 GDDR5
GPU Base Clock Speed 1825MHz 1046MHz
Pixel Rate 288 GPixel/s 8.37 GPixel/s
FLOPS (Floating-point Performance) 20.74 TFLOPS 0.8 TFLOPS
GPU Memory Speed 2000MHz 1252MHz
Texture Filter Rate 648 GTexels/s 16.7 GTexels/s
Total GPU Shading Units 4608 384
Total GPU TMUs 288 16
GPU Boost Clock Speed 2250MHz Not Known
GPU Render Output Units (ROPs) 128 8
DPFP (Double Precision Floating Point) Support No No
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Features Features Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640 GDDR5
DirectX Version Info 12 11.1
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
No. of Supported Displays 4 Not Known
PassMark (G3D) Score Not Known 644
PassMark (DirectCompute) Benchmark Result Not Known 1297
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Miscellaneous Miscellaneous Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640 GDDR5
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640 GDDR5
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 2 0
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 0
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General info General info Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640 GDDR5
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 267mm 145mm
Height 120mm 111mm
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Memory Memory Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640 GDDR5
Effective Memory Clock 16000MHz 5008MHz
Max Memory Bandwidth 512GB/s 40GB/s
RAM 16GB 1GB
Memory Bus Interface Width 256bit 64bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No
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