GeForce GTX 580 vs GeForce GTX 650 Ti 2GB

Intro

Compare that to the GeForce GTX 650 Ti 2GB, which uses a 28 nm design. nVidia has set the core frequency at 928 MHz. The GDDR5 RAM is set to run at a speed of 1350 MHz on this model. 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 2GB		110 Watts
GeForce GTX 580		244 Watts
	Difference: 134 Watts (122%)

Memory Bandwidth

The GeForce GTX 580, in theory, should perform quite a bit faster than the GeForce GTX 650 Ti 2GB overall. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 105984 (123%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be a bit (approximately 20%) faster with regards to texture filtering than the GeForce GTX 580. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 9984 (20%)

Pixel Rate

The GeForce GTX 580 should be much (more or less 150%) better at anti-aliasing than the GeForce GTX 650 Ti 2GB, and will be able to handle higher screen resolutions better. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 22208 (150%)

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 largest amount of information (counted in MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.