GeForce 8800 GTX vs GeForce GTX 550 Ti

Intro

The GeForce 8800 GTX makes use of a 90 nm design. nVidia has set the core speed at 575 MHz. The GDDR3 RAM is set to run at a frequency of 900 MHz on this card. It features 128 SPUs as well as 64 Texture Address Units and 24 Rasterization Operator Units.

Compare that to the GeForce GTX 550 Ti, which has core clock speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 memory. It features 192 SPUs along with 32 TAUs and 24 ROPs.

Price Comparison

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce 8800 GTX Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

GeForce GTX 550 Ti Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce 8800 GTX	GeForce GTX 550 Ti
Manufacturer	nVidia	nVidia
Year	Nov 2006	March 2011
Code Name	G80	GF116
Fab Process	90 nm	40 nm
Bus	PCIe x16	PCIe 2.1 x16
Memory	768 MB	1024 MB
Core Speed	575 MHz	900 MHz
Shader Speed	1350 MHz	1800 MHz
Memory Speed	900 MHz	1026 MHz
Unified Shaders	128	192
Texture Mapping Units	64	32
Render Output Units	24	24
Bus Type	GDDR3	GDDR5
Bus Width	384-bit	192-bit
DirectX Version	DirectX 10	DirectX 11
OpenGL Version	OpenGL 3.0	OpenGL 4.1
Power (Max TDP)	155 watts	116 watts
Shader Model	4.0	5.0
Bandwidth	86400 MB/sec	98496 MB/sec
Texel Rate	36800 Mtexels/sec	28800 Mtexels/sec
Pixel Rate	13800 Mpixels/sec	21600 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.