GeForce 8800 GT 512MB vs GeForce GTX 650 Ti

Intro

Compare all of that to the GeForce GTX 650 Ti, which comes with a core clock frequency of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 768 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 5 Watts (5%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti will be 50% quicker than the GeForce 8800 GT 512MB in general, because of its greater bandwidth. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 28800 (50%)

Texel Rate

The GeForce GTX 650 Ti will be quite a bit (approximately 77%) faster with regards to texture filtering than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 25792 (77%)

Pixel Rate

The GeForce GTX 650 Ti will be a lot (about 55%) faster with regards to full screen anti-aliasing than the GeForce 8800 GT 512MB, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 5248 (55%)

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 data (in units of MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.