GeForce 9800 GTX+ vs GeForce GTX 750

Intro

Compare that to the GeForce GTX 750, which uses a 28 nm design. nVidia has set the core frequency at 1020 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this card. It features 512 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce GTX 750 should be 14% faster than the GeForce 9800 GTX+ in general, because of its higher bandwidth. (explain)

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

Texel Rate

The GeForce 9800 GTX+ should be much (approximately 45%) better at texture filtering than the GeForce GTX 750. (explain)

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

Pixel Rate

The GeForce GTX 750 is much (approximately 38%) faster with regards to AA than the GeForce 9800 GTX+, and will be capable of handling higher resolutions better. (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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.