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GeForce 8800 GTS (G80) 640MB vs GeForce GTX 860M

Intro

The GeForce 8800 GTS (G80) 640MB comes with a GPU clock speed of 513 MHz, and the 640 MB of GDDR3 memory is set to run at 792 MHz through a 320-bit bus. It also is comprised of 96 SPUs, 48 Texture Address Units, and 20 ROPs.

Compare those specs to the GeForce GTX 860M, which uses a 28 nm design. nVidia has clocked the core speed at 797 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this model. It features 1152 SPUs along with 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 8800 GTS (G80) 640MB 143 Watts
Difference: 98 Watts (218%)

Memory Bandwidth

The GeForce GTX 860M, in theory, should perform a small bit faster than the GeForce 8800 GTS (G80) 640MB overall. (explain)

GeForce GTX 860M 64000 MB/sec
GeForce 8800 GTS (G80) 640MB 63360 MB/sec
Difference: 640 (1%)

Texel Rate

The GeForce GTX 860M should be a lot (approximately 211%) better at anisotropic filtering than the GeForce 8800 GTS (G80) 640MB. (explain)

GeForce GTX 860M 76512 Mtexels/sec
GeForce 8800 GTS (G80) 640MB 24624 Mtexels/sec
Difference: 51888 (211%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 860M is the winner, by far. (explain)

GeForce GTX 860M 12752 Mpixels/sec
GeForce 8800 GTS (G80) 640MB 10260 Mpixels/sec
Difference: 2492 (24%)

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 8800 GTS (G80) 640MB

Amazon.com

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GeForce GTX 860M

Amazon.com

Check prices at:

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 8800 GTS (G80) 640MB GeForce GTX 860M
Manufacturer nVidia nVidia
Year Nov 2006 (640) March 12 2014
Code Name G80 GM107
Memory 640 MB 4096 MB
Core Speed 513 MHz 797 MHz
Memory Speed 1584 MHz 4000 MHz
Power (Max TDP) 143 watts 45 watts
Bandwidth 63360 MB/sec 64000 MB/sec
Texel Rate 24624 Mtexels/sec 76512 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 12752 Mpixels/sec
Unified Shaders 96 1152
Texture Mapping Units 48 96
Render Output Units 20 16
Bus Type GDDR3 GDDR5
Bus Width 320-bit 128-bit
Fab Process 90 nm 28 nm
Transistors 681 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, 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 number 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 640MB

Amazon.com

Check prices at:

GeForce GTX 860M

Amazon.com

Check prices at:

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.

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