GeForce 8800 GT 512MB vs GeForce GTX 950

Intro

Compare those specifications to the GeForce GTX 950, which comes with a clock speed of 1024 MHz and a GDDR5 memory speed of 1652 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is comprised of 768 SPUs, 48 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 15 Watts (17%)

Memory Bandwidth

The GeForce GTX 950 should in theory be quite a bit faster than the GeForce 8800 GT 512MB in general. (explain)

GeForce GTX 950		105728 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 48128 (84%)

Texel Rate

The GeForce GTX 950 should be a lot (more or less 46%) more effective at AF than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 15552 (46%)

Pixel Rate

The GeForce GTX 950 should be a lot (more or less 241%) better at full screen anti-aliasing than the GeForce 8800 GT 512MB, and able to handle higher screen resolutions better. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 23168 (241%)

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 maximum amount of information (in units of megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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