GeForce GT 320 vs GeForce GTX 750

Intro

Compare those specifications to the GeForce GTX 750, which uses a 28 nm design. nVidia has clocked the core speed at 1020 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this specific model. It features 512 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTX 750		55 Watts
	Difference: 12 Watts (28%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 should theoretically be much better than the GeForce GT 320 in general. (explain)

GeForce GTX 750		80000 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 54720 (216%)

Texel Rate

The GeForce GTX 750 will be a lot (approximately 152%) better at anisotropic filtering than the GeForce GT 320. (explain)

GeForce GTX 750		32640 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 19680 (152%)

Pixel Rate

The GeForce GTX 750 will be quite a bit (about 278%) faster with regards to anti-aliasing than the GeForce GT 320, and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 12000 (278%)

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 information (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.