GeForce 8300 GS (OEM) vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory works at a speed of 1000 MHz on this card. It features 1120(224x5) SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
Radeon HD 5830		175 Watts
	Difference: 135 Watts (338%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5830 should in theory be much better than the GeForce 8300 GS (OEM) in general. (explain)

Radeon HD 5830		128000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 121600 (1900%)

Texel Rate

The Radeon HD 5830 should be quite a bit (approximately 2389%) more effective at texture filtering than the GeForce 8300 GS (OEM). (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 43000 (2389%)

Pixel Rate

The Radeon HD 5830 will be a lot (more or less 1322%) faster with regards to AA than the GeForce 8300 GS (OEM), and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 11900 (1322%)

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: Bandwidth is the largest amount of data (measured in MB per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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.