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GeForce 8800 GTS (G80) 640MB vs GeForce GTX 950M

Intro

The GeForce 8800 GTS (G80) 640MB has a clock speed of 513 MHz and a GDDR3 memory speed of 792 MHz. It also makes use of a 320-bit memory bus, and makes use of a 90 nm design. It is comprised of 96 SPUs, 48 Texture Address Units, and 20 ROPs.

Compare those specs to the GeForce GTX 950M, which features a core clock speed of 914 MHz and a DDR3 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
GeForce 8800 GTS (G80) 640MB 143 Watts
Difference: 88 Watts (160%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 GTS (G80) 640MB should theoretically be a lot better than the GeForce GTX 950M in general. (explain)

GeForce 8800 GTS (G80) 640MB 63360 MB/sec
GeForce GTX 950M 32000 MB/sec
Difference: 31360 (98%)

Texel Rate

The GeForce GTX 950M should be much (approximately 48%) more effective at texture filtering than the GeForce 8800 GTS (G80) 640MB. (explain)

GeForce GTX 950M 36560 Mtexels/sec
GeForce 8800 GTS (G80) 640MB 24624 Mtexels/sec
Difference: 11936 (48%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 950M is superior to the GeForce 8800 GTS (G80) 640MB, by a large margin. (explain)

GeForce GTX 950M 14624 Mpixels/sec
GeForce 8800 GTS (G80) 640MB 10260 Mpixels/sec
Difference: 4364 (43%)

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 950M

Amazon.com

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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 8800 GTS (G80) 640MB GeForce GTX 950M
Manufacturer nVidia nVidia
Year Nov 2006 (640) March 12 2015
Code Name G80 GM107
Memory 640 MB 2048 MB
Core Speed 513 MHz 914 MHz
Memory Speed 1584 MHz 2000 MHz
Power (Max TDP) 143 watts 55 watts
Bandwidth 63360 MB/sec 32000 MB/sec
Texel Rate 24624 Mtexels/sec 36560 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 14624 Mpixels/sec
Unified Shaders 96 640
Texture Mapping Units 48 40
Render Output Units 20 16
Bus Type GDDR3 DDR3
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 (counted in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce 8800 GTS (G80) 640MB

Amazon.com

Check prices at:

GeForce GTX 950M

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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