GeForce GT 340 1GB vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which uses a 40 nm design. AMD has clocked the core speed at 700 MHz. The GDDR5 memory runs at a speed of 1150 MHz on this specific card. It features 720(144x5) SPUs as well as 36 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
Radeon HD 5750 512MB		86 Watts
	Difference: 17 Watts (25%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5750 512MB should in theory be quite a bit superior to the GeForce GT 340 1GB in general. (explain)

Radeon HD 5750 512MB		73600 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 19200 (35%)

Texel Rate

The Radeon HD 5750 512MB will be much (approximately 43%) better at texture filtering than the GeForce GT 340 1GB. (explain)

Radeon HD 5750 512MB		25200 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 7600 (43%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 5750 512MB is a better choice, by far. (explain)

Radeon HD 5750 512MB		11200 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 6800 (155%)

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 largest amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 that the graphics card 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 Raster Operations Pipelines by the the core 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.