GeForce GTS 250 512MB vs Geforce GTX 760

Intro

Compare those specifications to the Geforce GTX 760, which uses a 28 nm design. nVidia has clocked the core speed at 980 MHz. The GDDR5 memory is set to run at a frequency of 1502 MHz on this specific card. It features 1152 SPUs as well as 96 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 250 512MB		145 Watts
Geforce GTX 760		170 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

The Geforce GTX 760 should in theory perform quite a bit faster than the GeForce GTS 250 512MB overall. (explain)

Geforce GTX 760		192256 MB/sec
GeForce GTS 250 512MB		70400 MB/sec
	Difference: 121856 (173%)

Texel Rate

The Geforce GTX 760 is much (more or less 99%) more effective at anisotropic filtering than the GeForce GTS 250 512MB. (explain)

Geforce GTX 760		94080 Mtexels/sec
GeForce GTS 250 512MB		47232 Mtexels/sec
	Difference: 46848 (99%)

Pixel Rate

The Geforce GTX 760 is a lot (approximately 166%) better at FSAA than the GeForce GTS 250 512MB, and should be capable of handling higher screen resolutions more effectively. (explain)

Geforce GTX 760		31360 Mpixels/sec
GeForce GTS 250 512MB		11808 Mpixels/sec
	Difference: 19552 (166%)

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 max amount of data (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling 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 graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.