GeForce 8800 Ultra 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 is set to run at a speed of 1350 MHz on this specific card. It features 768 SPUs as well as 64 Texture Address Units and 16 ROPs.

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

The GeForce 8800 Ultra should theoretically be a little bit faster than the GeForce GTX 650 Ti in general. (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 a lot (about 52%) faster with regards to texture 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

If using a high resolution is important to you, then the GeForce GTX 650 Ti is superior to the GeForce 8800 Ultra, but only just. (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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 can be processed in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.