GeForce 9800 GT 1GB vs GeForce GTX 980

Intro

Compare those specifications to the GeForce GTX 980, which comes with core speeds of 1126 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB		105 Watts
GeForce GTX 980		165 Watts
	Difference: 60 Watts (57%)

Memory Bandwidth

The GeForce GTX 980 should in theory be a lot faster than the GeForce 9800 GT 1GB in general. (explain)

GeForce GTX 980		224000 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 166400 (289%)

Texel Rate

The GeForce GTX 980 is a lot (about 329%) better at texture filtering than the GeForce 9800 GT 1GB. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce 9800 GT 1GB		33600 Mtexels/sec
	Difference: 110528 (329%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 980 is a better choice, by a large margin. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 62464 (651%)

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 (counted in megabytes per second) that can be moved over 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 type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.