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GeForce 8800 GT 512MB vs GeForce GTX 850M

Intro

The GeForce 8800 GT 512MB has a core clock frequency of 600 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 256-bit bus, and makes use of a 65 nm design. It is comprised of 112 SPUs, 56 TAUs, and 16 Raster Operation Units.

Compare those specifications to the GeForce GTX 850M, which makes use of a 28 nm design. nVidia has set the core speed at 876 MHz. The DDR3 RAM is set to run at a speed of 1000 MHz on this specific card. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
GeForce 8800 GT 512MB 105 Watts
Difference: 65 Watts (163%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 GT 512MB should theoretically be much superior to the GeForce GTX 850M overall. (explain)

GeForce 8800 GT 512MB 57600 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 25600 (80%)

Texel Rate

The GeForce GTX 850M will be a small bit (approximately 4%) faster with regards to texture filtering than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 850M 35040 Mtexels/sec
GeForce 8800 GT 512MB 33600 Mtexels/sec
Difference: 1440 (4%)

Pixel Rate

The GeForce GTX 850M will be quite a bit (more or less 46%) better at full screen anti-aliasing than the GeForce 8800 GT 512MB, and will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 850M 14016 Mpixels/sec
GeForce 8800 GT 512MB 9600 Mpixels/sec
Difference: 4416 (46%)

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 GT 512MB

Amazon.com

Check prices at:

GeForce GTX 850M

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 GT 512MB GeForce GTX 850M
Manufacturer nVidia nVidia
Year Oct 2007 March 12 2014
Code Name G92 GM107
Memory 512 MB 2048 MB
Core Speed 600 MHz 876 MHz
Memory Speed 1800 MHz 2000 MHz
Power (Max TDP) 105 watts 40 watts
Bandwidth 57600 MB/sec 32000 MB/sec
Texel Rate 33600 Mtexels/sec 35040 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 14016 Mpixels/sec
Unified Shaders 112 640
Texture Mapping Units 56 40
Render Output Units 16 16
Bus Type GDDR3 DDR3
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 data (in units of megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out 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 rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 512MB

Amazon.com

Check prices at:

GeForce GTX 850M

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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