GeForce GT 340 1GB vs Radeon HD 6750

Intro

Compare those specifications to the Radeon HD 6750, which uses a 40 nm design. AMD has clocked the core speed at 725 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this specific model. It features 720 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 1GB		69 Watts
Radeon HD 6750		86 Watts
	Difference: 17 Watts (25%)

Memory Bandwidth

The Radeon HD 6750 should theoretically be a small bit faster than the GeForce GT 340 1GB in general. (explain)

Radeon HD 6750		64000 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 9600 (18%)

Texel Rate

The Radeon HD 6750 will be a lot (approximately 48%) more effective at anisotropic filtering than the GeForce GT 340 1GB. (explain)

Radeon HD 6750		26100 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 8500 (48%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6750 is a better choice, by a large margin. (explain)

Radeon HD 6750		11600 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 7200 (164%)

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 max amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 number of pixels the graphics card could 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 Render Output Units by the clock 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 fill rate is also dependant on many 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.