GeForce GT 340 vs Radeon HD 5750 1GB

Intro

Compare all of that to the Radeon HD 5750 1GB, which has core speeds of 700 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 720(144x5) SPUs along with 36 TAUs 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 1GB		86 Watts
	Difference: 17 Watts (25%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 1GB should be 35% faster than the GeForce GT 340 in general, due to its greater data rate. (explain)

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

Texel Rate

The Radeon HD 5750 1GB should be quite a bit (more or less 43%) better at texture filtering than the GeForce GT 340. (explain)

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

Pixel Rate

The Radeon HD 5750 1GB should be a lot (approximately 155%) more effective at anti-aliasing than the GeForce GT 340, and should be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 5750 1GB		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 data (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that are processed 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 the texel rate, the better the video 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 most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.