GeForce 9800 GT 512MB vs GeForce GTX 960M

Intro

Compare those specifications to the GeForce GTX 960M, which features GPU core speed of 1096 MHz, and 2048 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
GeForce 9800 GT 512MB		105 Watts
	Difference: 40 Watts (62%)

Memory Bandwidth

Theoretically, the GeForce GTX 960M should be just a bit faster than the GeForce 9800 GT 512MB in general. (explain)

GeForce GTX 960M		64000 MB/sec
GeForce 9800 GT 512MB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce GTX 960M should be a lot (more or less 30%) better at texture filtering than the GeForce 9800 GT 512MB. (explain)

GeForce GTX 960M		43840 Mtexels/sec
GeForce 9800 GT 512MB		33600 Mtexels/sec
	Difference: 10240 (30%)

Pixel Rate

The GeForce GTX 960M should be quite a bit (more or less 83%) faster with regards to full screen anti-aliasing than the GeForce 9800 GT 512MB, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 960M		17536 Mpixels/sec
GeForce 9800 GT 512MB		9600 Mpixels/sec
	Difference: 7936 (83%)

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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.