GeForce 9800 GT 512MB vs Radeon HD 5450

Intro

Compare all that to the Radeon HD 5450, which features core clock speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce 9800 GT 512MB		105 Watts
	Difference: 86 Watts (453%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GT 512MB should theoretically be a lot superior to the Radeon HD 5450 overall. (explain)

GeForce 9800 GT 512MB		57600 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 44800 (350%)

Texel Rate

The GeForce 9800 GT 512MB should be a lot (more or less 546%) faster with regards to texture filtering than the Radeon HD 5450. (explain)

GeForce 9800 GT 512MB		33600 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 28400 (546%)

Pixel Rate

The GeForce 9800 GT 512MB should be a lot (more or less 269%) more effective at AA than the Radeon HD 5450, and also capable of handling higher screen resolutions better. (explain)

GeForce 9800 GT 512MB		9600 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 7000 (269%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.