GeForce 8800 GT 1GB vs Radeon HD 5830

Intro

Compare those specs to the Radeon HD 5830, which comes with a core clock speed of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 256-bit memory bus, and uses a 40 nm design. It features 1120(224x5) SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB		105 Watts
Radeon HD 5830		175 Watts
	Difference: 70 Watts (67%)

Memory Bandwidth

The Radeon HD 5830 should in theory perform quite a bit faster than the GeForce 8800 GT 1GB in general. (explain)

Radeon HD 5830		128000 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 70400 (122%)

Texel Rate

The Radeon HD 5830 will be quite a bit (more or less 33%) faster with regards to anisotropic filtering than the GeForce 8800 GT 1GB. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce 8800 GT 1GB		33600 Mtexels/sec
	Difference: 11200 (33%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5830 is a better choice, by far. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 3200 (33%)

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 max amount of data (counted in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.