Gigabyte Radeon RX 6800 XT vs Nvidia GeForce GT 640

VS
Gigabyte Radeon RX 6800 XT
Gigabyte Radeon RX 6800 XT Image
Nvidia GeForce GT 640
Nvidia GeForce GT 640 Image
Gigabyte Radeon RX 6800 XT
Nvidia GeForce GT 640
Key Differences Key Differences Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640
GPU Base Clock Speed 1825MHz 902MHz
GPU Boost Clock Speed 2250MHz Not Known
Pixel Rate 288 GPixel/s 7.22 GPixel/s
GPU Memory Speed 2000MHz 891MHz
GPU Render Output Units (ROPs) 128 16
No. of Supported Displays 4 Not Known
Performance Performance Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640
GPU Base Clock Speed 1825MHz 902MHz
Pixel Rate 288 GPixel/s 7.22 GPixel/s
FLOPS (Floating-point Performance) 20.74 TFLOPS 0.69 TFLOPS
GPU Memory Speed 2000MHz 891MHz
Texture Filter Rate 648 GTexels/s 28.9 GTexels/s
Total GPU Shading Units 4608 384
Total GPU TMUs 288 32
GPU Boost Clock Speed 2250MHz Not Known
GPU Render Output Units (ROPs) 128 16
DPFP (Double Precision Floating Point) Support No No
Features Features Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640
DirectX Version Info 12 11
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
Miscellaneous Miscellaneous Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640
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
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 2
Mini DisplayPort Output 0 0
General info General info Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 26800 million 1270 million
Semiconductor Size 7nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 267mm 145mm
Height 120mm 111mm
Memory Memory Gigabyte Radeon RX 6800 XT Nvidia GeForce GT 640
Effective Memory Clock 16000MHz 1782MHz
Max Memory Bandwidth 512GB/s 28.5GB/s
RAM 16GB 2GB
Memory Bus Interface Width 256bit 128bit
GDDR Memory Version 6 Not Known
ECC (Error-Correcting Code) Memory Support No No

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