GeForce GTS 250 1GB vs GeForce GTX 650 Ti

Intro

Compare those specifications to the GeForce GTX 650 Ti, which makes use of a 28 nm design. nVidia has clocked the core speed at 928 MHz. The GDDR5 RAM runs at a frequency of 1350 MHz on this particular card. It features 768 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti		110 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 35 Watts (32%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 650 Ti should theoretically be much better than the GeForce GTS 250 1GB overall. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 16000 (23%)

Texel Rate

The GeForce GTX 650 Ti is a lot (more or less 26%) better at texture filtering than the GeForce GTS 250 1GB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce GTS 250 1GB		47232 Mtexels/sec
	Difference: 12160 (26%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 650 Ti is superior to the GeForce GTS 250 1GB, and very much so. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 3040 (26%)

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 information (measured in megabytes per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 applied 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the 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 the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.