GeForce 8800 GT 512MB vs GeForce 8800 GTX

Intro

Compare those specs to the GeForce 8800 GTX, which has a core clock speed of 575 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 384-bit memory bus, and makes use of a 90 nm design. It is made up of 128 SPUs, 64 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
GeForce 8800 GTX		155 Watts
	Difference: 50 Watts (48%)

Memory Bandwidth

The GeForce 8800 GTX should theoretically be a lot faster than the GeForce 8800 GT 512MB overall. (explain)

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

Texel Rate

The GeForce 8800 GTX will be just a bit (more or less 10%) better at AF than the GeForce 8800 GT 512MB. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 3200 (10%)

Pixel Rate

The GeForce 8800 GTX will be much (approximately 44%) faster with regards to AA than the GeForce 8800 GT 512MB, and will be able to handle higher resolutions better. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 4200 (44%)

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 max amount of data (in units of MB per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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