Gigabyte GeForce RTX 3080 Gaming OC vs EVGA GeForce GTX 640 4GB

VS
Gigabyte GeForce RTX 3080 Gaming OC
Gigabyte GeForce RTX 3080 Gaming OC Image
EVGA GeForce GTX 640 4GB
EVGA GeForce GTX 640 4GB Image
Gigabyte GeForce RTX 3080 Gaming OC
EVGA GeForce GTX 640 4GB
Key Differences Key Differences Gigabyte GeForce RTX 3080 Gaming OC EVGA GeForce GTX 640 4GB
GPU Base Clock Speed 1440MHz 900MHz
GPU Boost Clock Speed 1800MHz Not Known
Pixel Rate 172.8 GPixel/s 7.22 GPixel/s
GPU Memory Speed 1188MHz 901MHz
GPU Render Output Units (ROPs) 96 16
No. of Supported Displays 4 Not Known
Performance Performance Gigabyte GeForce RTX 3080 Gaming OC EVGA GeForce GTX 640 4GB
GPU Base Clock Speed 1440MHz 900MHz
Pixel Rate 172.8 GPixel/s 7.22 GPixel/s
FLOPS (Floating-point Performance) 31.33 TFLOPS 0.69 TFLOPS
GPU Memory Speed 1188MHz 901MHz
Texture Filter Rate 489.6 GTexels/s 28.8 GTexels/s
Total GPU Shading Units 8704 384
Total GPU TMUs 272 32
GPU Boost Clock Speed 1800MHz Not Known
GPU Render Output Units (ROPs) 96 16
DPFP (Double Precision Floating Point) Support No No
Features Features Gigabyte GeForce RTX 3080 Gaming OC EVGA GeForce GTX 640 4GB
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
Ports Ports Gigabyte GeForce RTX 3080 Gaming OC EVGA GeForce GTX 640 4GB
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 3 0
No. of HDMI Ports 2 Not Known
DVI Output Ports 0 2
Mini DisplayPort Output 0 0
General info General info Gigabyte GeForce RTX 3080 Gaming OC EVGA GeForce GTX 640 4GB
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 28300 million 1270 million
Semiconductor Size 8nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 320mm 170mm
Height 129mm 111mm
Memory Memory Gigabyte GeForce RTX 3080 Gaming OC EVGA GeForce GTX 640 4GB
Effective Memory Clock 19000MHz 1802MHz
Max Memory Bandwidth 760GB/s 28.8GB/s
RAM 10GB 4GB
Memory Bus Interface Width 320bit 128bit
GDDR Memory Version 6 Not Known
ECC (Error-Correcting Code) Memory Support No No

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