GeForce 8800 GTS (G92) vs Radeon HD 5450

Intro

Compare that to the Radeon HD 5450, which comes with clock speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 memory. It features 80(16x5) SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 116 Watts (611%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 GTS (G92) should in theory be much superior to the Radeon HD 5450 overall. (explain)

GeForce 8800 GTS (G92)		62080 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 49280 (385%)

Texel Rate

The GeForce 8800 GTS (G92) will be a lot (approximately 700%) more effective at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 36400 (700%)

Pixel Rate

The GeForce 8800 GTS (G92) is a lot (more or less 300%) better at AA than the Radeon HD 5450, and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce 8800 GTS (G92)		10400 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 7800 (300%)

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 MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 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 anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.