GeForce 9500 GT DDR2 vs GeForce GTX 750 Ti

Intro

Compare those specs to the GeForce GTX 750 Ti, which makes use of a 28 nm design. nVidia has set the core frequency at 1020 MHz. The GDDR5 RAM is set to run at a frequency of 1350 MHz on this particular model. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
GeForce GTX 750 Ti		60 Watts
	Difference: 10 Watts (20%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 Ti should in theory be a lot superior to the GeForce 9500 GT DDR2 overall. (explain)

GeForce GTX 750 Ti		86400 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 70400 (440%)

Texel Rate

The GeForce GTX 750 Ti should be a lot (more or less 364%) better at AF than the GeForce 9500 GT DDR2. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 32000 (364%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 750 Ti is the winner, and very much so. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
GeForce 9500 GT DDR2		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 max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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