GeForce GT 340 vs Radeon HD 5750 512MB

Intro

Compare that to the Radeon HD 5750 512MB, which features clock speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 memory. It features 720(144x5) SPUs as well as 36 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		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 theoretically be a lot superior to the GeForce GT 340 in general. (explain)

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

Texel Rate

The Radeon HD 5750 512MB will be quite a bit (approximately 43%) faster with regards to AF than the GeForce GT 340. (explain)

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

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 5750 512MB is a better choice, and very much so. (explain)

Radeon HD 5750 512MB		11200 Mpixels/sec
GeForce GT 340		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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling 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 the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.