Zotac GeForce GTX 1080 Ti AMP! Extreme vs KFA2 GeForce GTX 650 Ti Boost

VS
Zotac GeForce GTX 1080 Ti AMP! Extreme
Zotac GeForce GTX 1080 Ti AMP! Extreme Image
KFA2 GeForce GTX 650 Ti Boost
KFA2 GeForce GTX 650 Ti Boost Image
Zotac GeForce GTX 1080 Ti AMP! Extreme
KFA2 GeForce GTX 650 Ti Boost
Key Differences Key Differences Zotac GeForce GTX 1080 Ti AMP! Extreme KFA2 GeForce GTX 650 Ti Boost
GPU Base Clock Speed 1645MHz 980MHz
GPU Boost Clock Speed 1759MHz 1032MHz
Pixel Rate 154.8 GPixel/s 15.7 GPixel/s
GPU Memory Speed 1400MHz 1502MHz
GPU Render Output Units (ROPs) 88 24
No. of Supported Displays 4 4
Performance Performance Zotac GeForce GTX 1080 Ti AMP! Extreme KFA2 GeForce GTX 650 Ti Boost
GPU Base Clock Speed 1645MHz 980MHz
Pixel Rate 154.8 GPixel/s 15.7 GPixel/s
FLOPS (Floating-point Performance) 12.61 TFLOPS 1.5 TFLOPS
Texture Filter Rate 394 GTexels/s 62.7 GTexels/s
GPU Memory Speed 1400MHz 1502MHz
Total GPU Shading Units 3584 768
Total GPU TMUs 224 64
GPU Boost Clock Speed 1759MHz 1032MHz
GPU Render Output Units (ROPs) 88 24
DPFP (Double Precision Floating Point) Support No Yes
Features Features Zotac GeForce GTX 1080 Ti AMP! Extreme KFA2 GeForce GTX 650 Ti Boost
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 3514
GPU Temperature Under Load 84°C 56°C
PassMark (DirectCompute) Benchmark Result 9456 1621
Idle GPU Temperature 33°C 28°C
3D Support Yes Yes
Noise Level Under Load 55.4dB 40.1dB
Idle Noise Level 40.7dB 40.1dB
Idle Power Consumption 82W 107W
3DMark Vantage Texture Fill Result Not Known 46.1GTexels/s
3DMark Vantage Pixel Fill Result Not Known 5.3GPixel/s
Ray Tracing Support Yes No
Power Consumption Under Peak Load Not Known 261W
Multi-GPU Support Count 2 Not Known
SmallLuxGPU (2.0d4) Result Not Known 3400
No. of Supported Displays 4 4
Ports Ports Zotac GeForce GTX 1080 Ti AMP! Extreme KFA2 GeForce GTX 650 Ti Boost
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 1 1
Mini DisplayPort Output 0 0
General info General info Zotac GeForce GTX 1080 Ti AMP! Extreme KFA2 GeForce GTX 650 Ti Boost
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 12000 million 2540 million
Semiconductor Size 16nm 28nm
PCI Express Version 3 3
Dual-GPU Support No No
Width Size 325mm 241mm
Height 148mm 111mm
Air-water Cooling Support No No
Memory Memory Zotac GeForce GTX 1080 Ti AMP! Extreme KFA2 GeForce GTX 650 Ti Boost
Effective Memory Clock 11200MHz 6008MHz
Max Memory Bandwidth 492.8GB/s 144GB/s
RAM 11GB 2GB
Memory Bus Interface Width 352bit 192bit
GDDR Memory Version 5 5
ECC (Error-Correcting Code) Memory Support No No

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