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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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Significantly lower TDP 19W vs 125W 6.6x lower TDP
Front view of GeForce GT 8800

Reasons to consider the
ASUS GeForce GT 8800

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Higher memory bandwidth 64.6 GB/s vs 8 GB/s More than 8x higher memory bandwidth
Higher effective memory clock speed 2,020 MHz vs 1,000 MHz More than 2x higher effective memory clock speed
Higher texture rate 39.2 GTexel/s vs 5.2 GTexel/s More than 7.5x higher texture rate
More texture mapping units 56 vs 8 48 more texture mapping units
Significantly higher memory clock speed 1,010 MHz vs 500 MHz More than 2x higher memory clock speed
Significantly wider memory bus 256 bit vs 64 bit 4x wider memory bus
More render output processors 16 vs 4 12 more render output processors
Higher pixel rate 11.2 GPixel/s vs 2.6 GPixel/s More than 4.2x higher pixel rate

Features Key features of the Radeon HD 5450 PCIe x1  vs GeForce GT 8800 

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 GT 8800
11.2 GPixel/s

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

Radeon HD 5450 PCIe x1
5.2 GTexel/s
GeForce GT 8800
39.2 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 8800

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 PCIe x1  vs
GeForce GT 8800 
GPU brand ATI Nvidia
GPU name Cedar G92
Market Desktop Desktop
Clock speed 650 MHz 700 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GT 8800 GT 600 MHz 512 MB

raw performance

Shading units 80 112
Texture mapping units 8 56
Render output processors 4 16
Pixel rate 2.6 GPixel/s 11.2 GPixel/s
Texture rate 5.2 GTexel/s 39.2 GTexel/s
Floating-point performance 104 GFLOPS 392 GFLOPS


Radeon HD 5450 PCIe x1  vs
GeForce GT 8800 
Memory clock speed 500 MHz 1,010 MHz
Effective memory clock speed 1,000 MHz 2,020 MHz
Memory bus 64 bit 256 bit
Memory 512 MB 512 MB
Memory type DDR3 GDDR3
Memory bandwidth 8 GB/s 64.6 GB/s

noise and power

TDP 19W 125W


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