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Differences What are the advantages of each

Front view of Radeon HD 5450 PCIe x1

Reasons to consider the
ATi Radeon HD 5450 PCIe x1

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Lower TDP 19W vs 60W 3.2x lower TDP
Front view of GeForce GTX 750 Ti

Reasons to consider the
Nvidia GeForce GTX 750 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 1,020 MHz vs 650 MHz More than 55% higher clock speed
Significantly higher memory bandwidth 86.4 GB/s vs 8 GB/s More than 10.8x higher memory bandwidth
Significantly higher texture rate 82.64 GTexel/s vs 5.2 GTexel/s Around 16x higher texture rate
Better floating-point performance 1,728 GFLOPS vs 104 GFLOPS More than 16.5x better floating-point performance
More memory 2,048 MB vs 512 MB 4x more memory
Much higher memory clock speed 1,502 MHz vs 500 MHz More than 3x higher memory clock speed
Higher pixel rate 16.32 GPixel/s vs 2.6 GPixel/s More than 6.2x higher pixel rate
More shading units 640 vs 80 560 more shading units
More texture mapping units 40 vs 8 32 more texture mapping 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 5450 PCIe x1  vs GeForce GTX 750 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 5450 PCIe x1
2.6 GPixel/s
GeForce GTX 750 Ti
16.32 GPixel/s

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

Radeon HD 5450 PCIe x1
5.2 GTexel/s
GeForce GTX 750 Ti
82.64 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 750 Ti
1,728 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

gpu

Radeon HD 5450 PCIe x1  vs
GeForce GTX 750 Ti 
GPU brand ATI Nvidia
GPU name Cedar GM107
Market Desktop Desktop
Clock speed 650 MHz 1,020 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GTX 750 Ti 1 GHz 2 GB

raw performance

Shading units 80 640
Texture mapping units 8 40
Render output processors 4 16
Pixel rate 2.6 GPixel/s 16.32 GPixel/s
Texture rate 5.2 GTexel/s 82.64 GTexel/s
Floating-point performance 104 GFLOPS 1,728 GFLOPS

memory

Radeon HD 5450 PCIe x1  vs
GeForce GTX 750 Ti 
Memory clock speed 500 MHz 1,502 MHz
Effective memory clock speed 1,000 MHz 5,400 MHz
Memory bus 64 bit 128 bit
Memory 512 MB 2,048 MB
Memory type DDR3 GDDR5
Memory bandwidth 8 GB/s 86.4 GB/s

noise and power

TDP 19W 60W

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