GeForce GT 340 vs GeForce GTX 560

Intro

Compare those specifications to the GeForce GTX 560, which has a core clock frequency of 810 MHz and a GDDR5 memory frequency of 1001 MHz. It also makes use of a 256-bit bus, and uses a 40 nm design. It features 336 SPUs, 56 Texture Address Units, 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 should be quite a bit faster than the GeForce GT 340 overall. (explain)

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

Texel Rate

The GeForce GTX 560 is a lot (more or less 158%) better at texture filtering than the GeForce GT 340. (explain)

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

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 560 is a better choice, by far. (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 one second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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