GeForce 8300 GS (OEM) vs Radeon HD 5830

Intro

Compare all that to the Radeon HD 5830, which makes use of a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this specific card. It features 1120(224x5) SPUs as well as 56 Texture Address Units and 16 ROPs.

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

Performance-wise, the Radeon HD 5830 should theoretically be a lot 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 will be quite a bit (more or less 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 should be quite a bit (more or less 1322%) better at AA than the GeForce 8300 GS (OEM), and also should be able to handle higher resolutions while still performing well. (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 maximum amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 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, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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 of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.