GeForce 9800 GT 512MB vs GeForce GTX 860M

Intro

Compare those specs to the GeForce GTX 860M, which has a core clock frequency of 797 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 1152 SPUs, 96 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce 9800 GT 512MB		105 Watts
	Difference: 60 Watts (133%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 860M should theoretically be a little bit better than the GeForce 9800 GT 512MB in general. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce 9800 GT 512MB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce GTX 860M should be a lot (about 128%) better at AF than the GeForce 9800 GT 512MB. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce 9800 GT 512MB		33600 Mtexels/sec
	Difference: 42912 (128%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 860M is the winner, by a large margin. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce 9800 GT 512MB		9600 Mpixels/sec
	Difference: 3152 (33%)

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 maximum amount of information (counted in MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.