GeForce GT 340 vs Radeon HD 5570

Intro

Compare those specs to the Radeon HD 5570, which makes use of a 40 nm design. AMD has set the core frequency at 650 MHz. The DDR3 memory works at a frequency of 900 MHz on this particular model. It features 400(80x5) SPUs as well as 20 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GT 340		69 Watts
	Difference: 26 Watts (60%)

Memory Bandwidth

In theory, the GeForce GT 340 will be 89% faster than the Radeon HD 5570 overall, because of its greater bandwidth. (explain)

GeForce GT 340		54400 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 25600 (89%)

Texel Rate

The GeForce GT 340 is much (about 35%) more effective at AF than the Radeon HD 5570. (explain)

GeForce GT 340		17600 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 4600 (35%)

Pixel Rate

The Radeon HD 5570 should be just a bit (approximately 18%) better at FSAA than the GeForce GT 340, and also capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 5570		5200 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 800 (18%)

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 max amount of information (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.