GeForce GT 430 (OEM) vs Radeon HD 7850

Intro

Compare all that to the Radeon HD 7850, which comes with core clock speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs as well as 64 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Radeon HD 7850		130 Watts
	Difference: 70 Watts (117%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7850 should in theory be much superior to the GeForce GT 430 (OEM) overall. (explain)

Radeon HD 7850		153600 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 124800 (433%)

Texel Rate

The Radeon HD 7850 is a lot (about 391%) better at anisotropic filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 7850		55040 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 43840 (391%)

Pixel Rate

The Radeon HD 7850 should be much (more or less 883%) faster with regards to full screen anti-aliasing than the GeForce GT 430 (OEM), and capable of handling higher resolutions better. (explain)

Radeon HD 7850		27520 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 24720 (883%)

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 megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units of the card 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 number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.