GeForce GT 340 vs GeForce GTX 560

Intro

Compare all that to the GeForce GTX 560, which comes with a clock speed of 810 MHz and a GDDR5 memory speed of 1001 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is comprised of 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 560		150 Watts
	Difference: 81 Watts (117%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 is 136% quicker than the GeForce GT 340 overall, due to its higher data rate. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 73728 (136%)

Texel Rate

The GeForce GTX 560 should be a lot (about 158%) faster with regards to AF than the GeForce GT 340. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 27760 (158%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 560 is superior to the GeForce GT 340, by a large margin. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 21520 (489%)

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 largest amount of data (measured in megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount 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 per second.

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