GeForce 9800 GTX+ vs GeForce GTX 750

Intro

Compare those specifications to the GeForce GTX 750, which has clock speeds of 1020 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 90 Watts (164%)

Memory Bandwidth

In theory, the GeForce GTX 750 will be 14% quicker than the GeForce 9800 GTX+ overall, due to its greater bandwidth. (explain)

GeForce GTX 750		80000 MB/sec
GeForce 9800 GTX+		70400 MB/sec
	Difference: 9600 (14%)

Texel Rate

The GeForce 9800 GTX+ will be much (approximately 45%) faster with regards to anisotropic filtering than the GeForce GTX 750. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 14592 (45%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 750 is a better choice, by far. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 4512 (38%)

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 is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must 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 processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.