GeForce GT 340 vs Radeon HD 5750 512MB

Intro

Compare all that to the Radeon HD 5750 512MB, which has a GPU core clock speed of 700 MHz, and 512 MB of GDDR5 RAM set to run at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) Stream Processors, 36 TAUs, and 16 Raster Operation Units.

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

Theoretically speaking, the Radeon HD 5750 512MB is 35% faster than the GeForce GT 340 overall, due to its higher data rate. (explain)

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

Texel Rate

The Radeon HD 5750 512MB is a lot (approximately 43%) better at anisotropic filtering 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 running with a high resolution is important to you, then the Radeon HD 5750 512MB is the winner, by a large margin. (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 largest amount of information (in units of MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.