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Differences What are the advantages of each

Front view of Radeon HD 5450 PCI

Reasons to consider the
ATi Radeon HD 5450 PCI

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Lower TDP 19W vs 55W 2.9x lower TDP
Front view of GeForce GTX 750

Reasons to consider the
Nvidia GeForce GTX 750

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Much higher effective memory clock speed 5,012 MHz vs 666 MHz More than 7.5x 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 80.2 GB/s vs 5.33 GB/s More than 15x higher memory bandwidth
Much higher memory clock speed 1,253 MHz vs 333 MHz More than 3.8x higher memory clock speed
Better floating-point performance 1,044.5 GFLOPS vs 104 GFLOPS More than 10x better floating-point performance
Higher pixel rate 16.32 GPixel/s vs 2.6 GPixel/s More than 6.2x higher pixel rate
Higher texture rate 32.6 GTexel/s vs 5.2 GTexel/s More than 6.2x higher texture rate
More render output processors 16 vs 4 12 more render output processors
More shading units 512 vs 80 432 more shading units
More texture mapping units 32 vs 8 24 more texture mapping units
Wider memory bus 128 bit vs 64 bit 2x wider memory bus

Features Key features of the Radeon HD 5450 PCI  vs GeForce GTX 750 

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

Radeon HD 5450 PCI
5.33 GB/s
GeForce GTX 750
80.2 GB/s

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

Radeon HD 5450 PCI
2.6 GPixel/s
GeForce GTX 750
16.32 GPixel/s

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

Radeon HD 5450 PCI
5.2 GTexel/s
GeForce GTX 750
32.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 5450 PCI
GeForce GTX 750
1,044.5 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 5450 PCI  vs
GeForce GTX 750 
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 None

raw performance

Shading units 80 512
Texture mapping units 8 32
Render output processors 4 16
Pixel rate 2.6 GPixel/s 16.32 GPixel/s
Texture rate 5.2 GTexel/s 32.6 GTexel/s
Floating-point performance 104 GFLOPS 1,044.5 GFLOPS


Radeon HD 5450 PCI  vs
GeForce GTX 750 
Memory clock speed 333 MHz 1,253 MHz
Effective memory clock speed 666 MHz 5,012 MHz
Memory bus 64 bit 128 bit
Memory 512 MB 1,024 MB
Memory type DDR2 GDDR5
Memory bandwidth 5.33 GB/s 80.2 GB/s

noise and power

TDP 19W 55W


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