Zotac GeForce RTX 3080 Trinity vs Nvidia GeForce GTX 645 OEM

VS
Zotac GeForce RTX 3080 Trinity
Zotac GeForce RTX 3080 Trinity Image
Nvidia GeForce GTX 645 OEM
Nvidia GeForce GTX 645 OEM Image
Zotac GeForce RTX 3080 Trinity
Nvidia GeForce GTX 645 OEM
Key Differences Key Differences Zotac GeForce RTX 3080 Trinity Nvidia GeForce GTX 645 OEM
GPU Base Clock Speed 1440MHz 823MHz
GPU Boost Clock Speed 1710MHz 888MHz
Pixel Rate 164.2 GPixel/s 9.88 GPixel/s
GPU Memory Speed 1188MHz 1000MHz
GPU Render Output Units (ROPs) 96 16
No. of Supported Displays 4 4
Performance Performance Zotac GeForce RTX 3080 Trinity Nvidia GeForce GTX 645 OEM
GPU Base Clock Speed 1440MHz 823MHz
Pixel Rate 164.2 GPixel/s 9.88 GPixel/s
FLOPS (Floating-point Performance) 29.77 TFLOPS 0.95 TFLOPS
GPU Memory Speed 1188MHz 1000MHz
Texture Filter Rate 465.1 GTexels/s 39.5 GTexels/s
Total GPU Shading Units 8704 576
Total GPU TMUs 272 48
GPU Boost Clock Speed 1710MHz 888MHz
GPU Render Output Units (ROPs) 96 16
DPFP (Double Precision Floating Point) Support No No
Features Features Zotac GeForce RTX 3080 Trinity Nvidia GeForce GTX 645 OEM
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 4
PassMark (G3D) Score Not Known 1977
PassMark (DirectCompute) Benchmark Result Not Known 943
Ports Ports Zotac GeForce RTX 3080 Trinity Nvidia GeForce GTX 645 OEM
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 3 1
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 2
Mini DisplayPort Output 0 0
General info General info Zotac GeForce RTX 3080 Trinity Nvidia GeForce GTX 645 OEM
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 28000 million 2540 million
Semiconductor Size 8nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 317.8mm 145mm
Height 120.7mm 111mm
Memory Memory Zotac GeForce RTX 3080 Trinity Nvidia GeForce GTX 645 OEM
Effective Memory Clock 19000MHz 4000MHz
Max Memory Bandwidth 760GB/s 64GB/s
RAM 10GB 1GB
Memory Bus Interface Width 320bit 128bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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