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GeForce 9800 GTX vs GeForce GTX 860M

Intro

The GeForce 9800 GTX has a clock speed of 675 MHz and a GDDR3 memory speed of 1100 MHz. It also features a 256-bit memory bus, and makes use of a 65 nm design. It features 128 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Compare those specifications to the GeForce GTX 860M, which features a GPU core clock speed of 797 MHz, and 4096 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also is comprised of 1152 SPUs, 96 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce 9800 GTX		140 Watts
	Difference: 95 Watts (211%)

Memory Bandwidth

The GeForce 9800 GTX should in theory be a little bit faster than the GeForce GTX 860M in general. (explain)

GeForce 9800 GTX		70400 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 6400 (10%)

Texel Rate

The GeForce GTX 860M will be much (approximately 77%) better at texture filtering than the GeForce 9800 GTX. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce 9800 GTX		43200 Mtexels/sec
	Difference: 33312 (77%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 860M is the winner, though only just barely. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 1952 (18%)

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

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GeForce 9800 GTX

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GeForce GTX 860M

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	GeForce 9800 GTX	GeForce GTX 860M
Manufacturer	nVidia	nVidia
Year	April 2008	March 12 2014
Code Name	G92	GM107
Memory	512 MB	4096 MB
Core Speed	675 MHz	797 MHz
Memory Speed	2200 MHz	4000 MHz
Power (Max TDP)	140 watts	45 watts
Bandwidth	70400 MB/sec	64000 MB/sec
Texel Rate	43200 Mtexels/sec	76512 Mtexels/sec
Pixel Rate	10800 Mpixels/sec	12752 Mpixels/sec
Unified Shaders	128	1152
Texture Mapping Units	64	96
Render Output Units	16	16
Bus Type	GDDR3	GDDR5
Bus Width	256-bit	128-bit
Fab Process	65 nm	28 nm
Transistors	754 million	(Unknown) million
Bus	PCIe x16 2.0	PCIe 3.0 x16
DirectX Version	DirectX 10	DirectX 12
OpenGL Version	OpenGL 3.0	OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

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