GeForce GT 340 vs GeForce GTX 750 Ti

Intro

Compare all of that to the GeForce GTX 750 Ti, which comes with GPU clock speed of 1020 MHz, and 2048 MB of GDDR5 RAM set to run at 1350 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
GeForce GT 340		69 Watts
	Difference: 9 Watts (15%)

Memory Bandwidth

The GeForce GTX 750 Ti should theoretically perform quite a bit faster than the GeForce GT 340 overall. (explain)

GeForce GTX 750 Ti		86400 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 32000 (59%)

Texel Rate

The GeForce GTX 750 Ti is a lot (about 132%) more effective at anisotropic filtering than the GeForce GT 340. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 23200 (132%)

Pixel Rate

The GeForce GTX 750 Ti will be quite a bit (about 271%) better at AA than the GeForce GT 340, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 11920 (271%)

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 (in units of megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, 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 most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.