Colorful GTX 1080 Ti Founders Edition vs Zotac GeForce GT 640 1GB

VS
Colorful GTX 1080 Ti Founders Edition
Colorful GTX 1080 Ti Founders Edition Image
Zotac GeForce GT 640 1GB
Zotac GeForce GT 640 1GB Image
Colorful GTX 1080 Ti Founders Edition
Zotac GeForce GT 640 1GB
Key Differences Key Differences Colorful GTX 1080 Ti Founders Edition Zotac GeForce GT 640 1GB
GPU Base Clock Speed 1481MHz 1046MHz
GPU Boost Clock Speed 1582MHz Not Known
Pixel Rate 139.2 GPixel/s 7.22 GPixel/s
GPU Memory Speed 1376MHz 1250MHz
GPU Render Output Units (ROPs) 88 16
No. of Supported Displays Not Known Not Known
Performance Performance Colorful GTX 1080 Ti Founders Edition Zotac GeForce GT 640 1GB
GPU Base Clock Speed 1481MHz 1046MHz
Pixel Rate 139.2 GPixel/s 7.22 GPixel/s
FLOPS (Floating-point Performance) 11.34 TFLOPS 0.69 TFLOPS
GPU Memory Speed 1376MHz 1250MHz
Texture Filter Rate 354.4 GTexels/s 28.8 GTexels/s
Total GPU Shading Units 3584 384
Total GPU TMUs 224 32
GPU Boost Clock Speed 1582MHz Not Known
GPU Render Output Units (ROPs) 88 16
DPFP (Double Precision Floating Point) Support No No
Features Features Colorful GTX 1080 Ti Founders Edition Zotac GeForce GT 640 1GB
DirectX Version Info 12 11
OpenGL Driver Version 4.5 4.3
OpenCL Driver Version 1.2 1.1
Multi-display Tech Support Yes Yes
PassMark (G3D) Score 13470 Not Known
GPU Temperature Under Load 84°C Not Known
PassMark (DirectCompute) Benchmark Result 9456 Not Known
Idle GPU Temperature 33°C Not Known
Noise Level Under Load 55.4dB Not Known
3D Support Yes Yes
Idle Power Consumption 82W Not Known
Idle Noise Level 40.7dB Not Known
Ray Tracing Support Yes No
Multi-GPU Support Count 2 Not Known
Ports Ports Colorful GTX 1080 Ti Founders Edition Zotac GeForce GT 640 1GB
HDMI Output Support Yes Yes
GPU HDMI Version 2 Not Known
DisplayPort Output 3 0
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 0
General info General info Colorful GTX 1080 Ti Founders Edition Zotac GeForce GT 640 1GB
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 12000 million 1270 million
Semiconductor Size 16nm 28nm
PCI Express Version 3 3
Dual-GPU Support No No
Width Size 266.7mm 145mm
Height 111.6mm 111mm
Air-water Cooling Support No No
Memory Memory Colorful GTX 1080 Ti Founders Edition Zotac GeForce GT 640 1GB
Effective Memory Clock 11008MHz 5000MHz
Max Memory Bandwidth 484.4GB/s 28.5GB/s
RAM 11GB 1GB
Memory Bus Interface Width 352bit 64bit
GDDR Memory Version 5 5
ECC (Error-Correcting Code) Memory Support No No

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