GeForce GT 130 vs Radeon HD 7850

Intro

Compare those specifications to the Radeon HD 7850, which makes use of a 28 nm design. AMD has set the core speed at 860 MHz. The GDDR5 memory is set to run at a frequency of 1200 MHz on this specific card. It features 1024 SPUs along with 64 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
Radeon HD 7850		130 Watts
	Difference: 55 Watts (73%)

Memory Bandwidth

In theory, the Radeon HD 7850 will be 1180% quicker than the GeForce GT 130 in general, because of its greater bandwidth. (explain)

Radeon HD 7850		153600 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 141600 (1180%)

Texel Rate

The Radeon HD 7850 should be quite a bit (more or less 359%) more effective at texture filtering than the GeForce GT 130. (explain)

Radeon HD 7850		55040 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 43040 (359%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 7850 is superior to the GeForce GT 130, by far. (explain)

Radeon HD 7850		27520 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 19520 (244%)

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 max amount of data (measured in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.