GeForce GTS 250 1GB vs GeForce GTX 750

Intro

Compare all that to the GeForce GTX 750, which has core clock speeds of 1020 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 512 SPUs along with 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 GTS 250 1GB		145 Watts
	Difference: 90 Watts (164%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 750 should in theory be a small bit better than the GeForce GTS 250 1GB in general. (explain)

GeForce GTX 750		80000 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 9600 (14%)

Texel Rate

The GeForce GTS 250 1GB is a lot (approximately 45%) better at texture filtering than the GeForce GTX 750. (explain)

GeForce GTS 250 1GB		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, and very much so. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce GTS 250 1GB		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 largest amount of information (measured in megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once 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 number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.