GeForce GT 230 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 RAM. It features 800 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
Radeon HD 6790		150 Watts
	Difference: 85 Watts (131%)

Memory Bandwidth

Performance-wise, the Radeon HD 6790 should in theory be a lot better than the GeForce GT 230 in general. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 96000 (250%)

Texel Rate

The Radeon HD 6790 will be a lot (about 282%) faster with regards to anisotropic filtering than the GeForce GT 230. (explain)

Radeon HD 6790		33600 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 24800 (282%)

Pixel Rate

The Radeon HD 6790 will be quite a bit (approximately 205%) better at anti-aliasing than the GeForce GT 230, and capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 6790		13440 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 9040 (205%)

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 (in units of megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at 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 that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.