GeForce 8800 Ultra vs GeForce GTX 650 Ti

Intro

Compare those specifications to the GeForce GTX 650 Ti, which comes with core speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 RAM. 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 8800 Ultra		171 Watts
	Difference: 61 Watts (55%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 Ultra will be 20% quicker than the GeForce GTX 650 Ti overall, due to its greater data rate. (explain)

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

Texel Rate

The GeForce GTX 650 Ti is quite a bit (about 52%) more effective at anisotropic filtering than the GeForce 8800 Ultra. (explain)

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

Pixel Rate

The GeForce GTX 650 Ti should be just a bit (more or less 1%) faster with regards to anti-aliasing than the GeForce 8800 Ultra, and also should be able to handle higher resolutions better. (explain)

GeForce GTX 650 Ti		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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the 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 that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.