GeForce 9800 GTX vs GeForce GTX 980

Intro

Compare those specifications to the GeForce GTX 980, which makes use of a 28 nm design. nVidia has clocked the core speed at 1126 MHz. The GDDR5 RAM runs at a speed of 1750 MHz on this particular card. It features 2048 SPUs along with 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX		140 Watts
GeForce GTX 980		165 Watts
	Difference: 25 Watts (18%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980 should perform much faster than the GeForce 9800 GTX in general. (explain)

GeForce GTX 980		224000 MB/sec
GeForce 9800 GTX		70400 MB/sec
	Difference: 153600 (218%)

Texel Rate

The GeForce GTX 980 is much (approximately 234%) better at AF than the GeForce 9800 GTX. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce 9800 GTX		43200 Mtexels/sec
	Difference: 100928 (234%)

Pixel Rate

The GeForce GTX 980 is much (more or less 567%) more effective at AA than the GeForce 9800 GTX, and also should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 61264 (567%)

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 (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.