GeForce 8300 GS (OEM) vs Radeon HD 5830

Intro

Compare all of that to the Radeon HD 5830, which comes with a clock speed of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It features 1120(224x5) SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon HD 5830 will be 1900% faster than the GeForce 8300 GS (OEM) overall, because of its higher bandwidth. (explain)

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

Texel Rate

The Radeon HD 5830 is a lot (approximately 2389%) more effective at AF 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 is quite a bit (more or less 1322%) faster with regards to anti-aliasing than the GeForce 8300 GS (OEM), and also should be able to handle higher resolutions better. (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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it must 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the 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 number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.