GeForce 8800 Ultra vs GeForce GTX 650 Ti 2GB

Intro

Compare those specifications to the GeForce GTX 650 Ti 2GB, which features a core clock frequency of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is made up of 768 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 61 Watts (55%)

Memory Bandwidth

In theory, the GeForce 8800 Ultra should be just a bit faster than the GeForce GTX 650 Ti 2GB overall. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 17280 (20%)

Texel Rate

The GeForce GTX 650 Ti 2GB is a lot (approximately 52%) more effective at texture filtering than the GeForce 8800 Ultra. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 20224 (52%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 650 Ti 2GB is the winner, though not by far. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 160 (1%)

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 data (measured in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it must 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units 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 processed in one second.

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