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Differences What are the advantages of each

Front view of Radeon HD 5490

Reasons to consider the
ATi Radeon HD 5490

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Significantly lower TDP 19W vs 110W 5.8x lower TDP
Front view of GeForce GTX 650 Ti

Reasons to consider the
Axigon GeForce GTX 650 Ti

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Much higher effective memory clock speed 5,400 MHz vs 1,000 MHz Around 5.5x higher effective memory clock speed
Significantly higher clock speed 1,006 MHz vs 650 MHz Around 55% higher clock speed
Significantly higher memory bandwidth 86.4 GB/s vs 8 GB/s More than 10.8x higher memory bandwidth
Better floating-point performance 1,545.2 GFLOPS vs 104 GFLOPS More than 14.8x better floating-point performance
Higher texture rate 64.4 GTexel/s vs 5.2 GTexel/s Around 12.5x higher texture rate
Much higher memory clock speed 1,350 MHz vs 500 MHz Around 2.8x higher memory clock speed
Significantly more texture mapping units 64 vs 8 56 more texture mapping units
Higher pixel rate 16.1 GPixel/s vs 2.6 GPixel/s Around 6.2x higher pixel rate
More shading units 768 vs 80 688 more shading units
More render output processors 16 vs 4 12 more render output processors
Wider memory bus 128 bit vs 64 bit 2x wider memory bus

Features Key features of the Radeon HD 5490  vs GeForce GTX 650 Ti 

memory bandwidth Rate at which data can be read from or stored in onboard memory

pixel rate Number of pixels a graphics card can render to the screen every second

Radeon HD 5490
2.6 GPixel/s
GeForce GTX 650 Ti
16.1 GPixel/s

texture rate Speed at which a graphics card can perform texture mapping

Radeon HD 5490
5.2 GTexel/s
GeForce GTX 650 Ti
64.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 5490
GeForce GTX 650 Ti
1,545.2 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

Specifications Full list of technical specs


Radeon HD 5490  vs
GeForce GTX 650 Ti 
GPU brand ATI Nvidia
GPU name Cedar GK106
Market Desktop Desktop
Clock speed 650 MHz 1,006 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GTX 650 Ti 928 MHz 1 GB

raw performance

Shading units 80 768
Texture mapping units 8 64
Render output processors 4 16
Pixel rate 2.6 GPixel/s 16.1 GPixel/s
Texture rate 5.2 GTexel/s 64.4 GTexel/s
Floating-point performance 104 GFLOPS 1,545.2 GFLOPS


Radeon HD 5490  vs
GeForce GTX 650 Ti 
Memory clock speed 500 MHz 1,350 MHz
Effective memory clock speed 1,000 MHz 5,400 MHz
Memory bus 64 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR3 GDDR5
Memory bandwidth 8 GB/s 86.4 GB/s

noise and power

TDP 19W 110W


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