GeForce GT 430 vs Radeon HD 5830

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
Radeon HD 5830		175 Watts
	Difference: 115 Watts (192%)

Memory Bandwidth

The Radeon HD 5830 should in theory perform a lot faster than the GeForce GT 430 overall. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The Radeon HD 5830 is quite a bit (approximately 300%) more effective at texture filtering than the GeForce GT 430. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 33600 (300%)

Pixel Rate

The Radeon HD 5830 will be much (approximately 357%) more effective at AA than the GeForce GT 430, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 10000 (357%)

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 largest amount of data (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, 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 amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.