GeForce 8800 Ultra vs GeForce GTX 980M

Intro

Compare all of that to the GeForce GTX 980M, which features GPU core speed of 1038 MHz, and 4096 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 1536 Stream Processors, 96 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 71 Watts (71%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 980M should theoretically be quite a bit better than the GeForce 8800 Ultra in general. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 24320 (23%)

Texel Rate

The GeForce GTX 980M should be a lot (about 154%) better at anisotropic filtering than the GeForce 8800 Ultra. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 60480 (154%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 980M is the winner, by a large margin. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 51744 (352%)

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 largest amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 applied in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.