GeForce GT 430 vs Radeon HD 6790

Intro

Compare all of that to the Radeon HD 6790, which features core clock speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 800 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
Radeon HD 6790		150 Watts
	Difference: 90 Watts (150%)

Memory Bandwidth

Performance-wise, the Radeon HD 6790 should in theory be a lot superior to the GeForce GT 430 overall. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 105600 (367%)

Texel Rate

The Radeon HD 6790 is a lot (more or less 200%) faster with regards to texture filtering than the GeForce GT 430. (explain)

Radeon HD 6790		33600 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 22400 (200%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6790 is superior to the GeForce GT 430, by a large margin. (explain)

Radeon HD 6790		13440 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 10640 (380%)

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 transported across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one 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 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 that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.