GeForce 9800 GT 1GB vs GeForce GTX 980M

Intro

Compare those specs to the GeForce GTX 980M, which comes with GPU core speed of 1038 MHz, and 4096 MB of GDDR5 memory set to run 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 9800 GT 1GB		105 Watts
	Difference: 5 Watts (5%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 980M should theoretically be much superior to the GeForce 9800 GT 1GB in general. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 70400 (122%)

Texel Rate

The GeForce GTX 980M will be quite a bit (more or less 197%) more effective at anisotropic filtering than the GeForce 9800 GT 1GB. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce 9800 GT 1GB		33600 Mtexels/sec
	Difference: 66048 (197%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 980M is superior to the GeForce 9800 GT 1GB, by a large margin. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 56832 (592%)

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 data (counted in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics 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 the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.