GeForce GT 230 vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which uses a 40 nm design. AMD has set the core speed at 900 MHz. The GDDR5 memory runs at a frequency of 1050 MHz on this specific model. It features 800 SPUs along with 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 6770		108 Watts
	Difference: 43 Watts (66%)

Memory Bandwidth

The Radeon HD 6770 should in theory perform much faster than the GeForce GT 230 overall. (explain)

Radeon HD 6770		67200 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 28800 (75%)

Texel Rate

The Radeon HD 6770 is quite a bit (approximately 309%) better at AF than the GeForce GT 230. (explain)

Radeon HD 6770		36000 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 27200 (309%)

Pixel Rate

The Radeon HD 6770 should be much (approximately 227%) faster with regards to AA than the GeForce GT 230, and will be capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 6770		14400 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 10000 (227%)

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 (measured in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 are processed per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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