GeForce 9800 GTX vs GeForce GTX 750

Intro

Compare all that to the GeForce GTX 750, which has a GPU core clock speed of 1020 MHz, and 1024 MB of GDDR5 RAM running at 1250 MHz through a 128-bit bus. It also is comprised of 512 Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce 9800 GTX		140 Watts
	Difference: 85 Watts (155%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 should in theory be a small bit superior to the GeForce 9800 GTX overall. (explain)

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

Texel Rate

The GeForce 9800 GTX is a lot (approximately 32%) more effective at AF than the GeForce GTX 750. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 10560 (32%)

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		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 maximum amount of data (measured in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.