GeForce 8800 Ultra vs GeForce GTX 950

Intro

Compare those specifications to the GeForce GTX 950, which has GPU clock speed of 1024 MHz, and 2048 MB of GDDR5 RAM running at 1652 MHz through a 128-bit bus. It also features 768 Stream Processors, 48 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 81 Watts (90%)

Memory Bandwidth

The GeForce GTX 950 should in theory be a small bit faster than the GeForce 8800 Ultra in general. (explain)

GeForce GTX 950		105728 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 2048 (2%)

Texel Rate

The GeForce GTX 950 is a lot (more or less 25%) more effective at anisotropic filtering than the GeForce 8800 Ultra. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 9984 (25%)

Pixel Rate

The GeForce GTX 950 should be quite a bit (more or less 123%) better at full screen anti-aliasing than the GeForce 8800 Ultra, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 18080 (123%)

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 largest amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units of the card by the core clock 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock 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 is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.