GeForce 9800 GTX vs GeForce GTX 750 Ti

Intro

Compare all of that to the GeForce GTX 750 Ti, which has GPU core speed of 1020 MHz, and 2048 MB of GDDR5 memory set to run at 1350 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, 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 9800 GTX		140 Watts
	Difference: 80 Watts (133%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 Ti should theoretically be a lot superior to the GeForce 9800 GTX overall. (explain)

GeForce GTX 750 Ti		86400 MB/sec
GeForce 9800 GTX		70400 MB/sec
	Difference: 16000 (23%)

Texel Rate

The GeForce 9800 GTX is just a bit (approximately 6%) more effective at texture filtering than the GeForce GTX 750 Ti. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
GeForce GTX 750 Ti		40800 Mtexels/sec
	Difference: 2400 (6%)

Pixel Rate

The GeForce GTX 750 Ti is a lot (about 51%) faster with regards to anti-aliasing than the GeForce 9800 GTX, and also should be capable of handling higher resolutions better. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 5520 (51%)

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 max amount of information (in units of megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.