GeForce GT 210 vs Radeon HD 6790

Intro

Compare all that to the Radeon HD 6790, which features GPU clock speed of 840 MHz, and 1024 MB of GDDR5 RAM running at 1050 MHz through a 256-bit bus. It also is made up of 800 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 210		31 Watts
Radeon HD 6790		150 Watts
	Difference: 119 Watts (384%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6790 should theoretically be quite a bit better than the GeForce GT 210 overall. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GT 210		12800 MB/sec
	Difference: 121600 (950%)

Texel Rate

The Radeon HD 6790 is a lot (about 613%) better at AF than the GeForce GT 210. (explain)

Radeon HD 6790		33600 Mtexels/sec
GeForce GT 210		4712 Mtexels/sec
	Difference: 28888 (613%)

Pixel Rate

The Radeon HD 6790 should be much (about 470%) faster with regards to AA than the GeForce GT 210, and also will be able to handle higher resolutions more effectively. (explain)

Radeon HD 6790		13440 Mpixels/sec
GeForce GT 210		2356 Mpixels/sec
	Difference: 11084 (470%)

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 information (counted in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 amount of texture map elements (texels) that are applied in one second. This number 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.