GeForce GT 130 vs Radeon HD 6870

Intro

Compare that to the Radeon HD 6870, which features core speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 1120 SPUs as well as 56 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
Radeon HD 6870		151 Watts
	Difference: 76 Watts (101%)

Memory Bandwidth

In theory, the Radeon HD 6870 will be 1020% faster than the GeForce GT 130 overall, due to its higher data rate. (explain)

Radeon HD 6870		134400 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 122400 (1020%)

Texel Rate

The Radeon HD 6870 is a lot (more or less 320%) more effective at AF than the GeForce GT 130. (explain)

Radeon HD 6870		50400 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 38400 (320%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6870 is a better choice, by a large margin. (explain)

Radeon HD 6870		28800 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 20800 (260%)

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 maximum amount of information (in units of MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.