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GeForce 8500 GT vs GeForce 940M

Intro

The GeForce 8500 GT uses a 80 nm design. nVidia has clocked the core speed at 450 MHz. The DDR2 RAM is set to run at a frequency of 400 MHz on this specific model. It features 16 SPUs along with 8 TAUs and 4 ROPs.

Compare those specifications to the GeForce 940M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 1072 MHz. The DDR3 RAM works at a speed of 1000 MHz on this card. It features 384 SPUs along with 24 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 940M is 25% faster than the GeForce 8500 GT in general, because of its greater data rate. (explain)

GeForce 940M 16000 MB/sec
GeForce 8500 GT 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 940M is much (more or less 615%) more effective at anisotropic filtering than the GeForce 8500 GT. (explain)

GeForce 940M 25728 Mtexels/sec
GeForce 8500 GT 3600 Mtexels/sec
Difference: 22128 (615%)

Pixel Rate

The GeForce 940M should be much (approximately 376%) faster with regards to full screen anti-aliasing than the GeForce 8500 GT, and should be able to handle higher resolutions without slowing down too much. (explain)

GeForce 940M 8576 Mpixels/sec
GeForce 8500 GT 1800 Mpixels/sec
Difference: 6776 (376%)

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 8500 GT

Amazon.com

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GeForce 940M

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 8500 GT GeForce 940M
Manufacturer nVidia nVidia
Year April 2007 March 12 2015
Code Name G86 GM108
Memory 512 MB 2048 MB
Core Speed 450 MHz 1072 MHz
Memory Speed 800 MHz 2000 MHz
Power (Max TDP) 45 watts (Unknown) watts
Bandwidth 12800 MB/sec 16000 MB/sec
Texel Rate 3600 Mtexels/sec 25728 Mtexels/sec
Pixel Rate 1800 Mpixels/sec 8576 Mpixels/sec
Unified Shaders 16 384
Texture Mapping Units 8 24
Render Output Units 4 8
Bus Type DDR2 DDR3
Bus Width 128-bit 64-bit
Fab Process 80 nm 28 nm
Transistors 210 million (Unknown) million
Bus PCIe x16, PCI, 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 (in units of MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per 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 video 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 that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many 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

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GeForce 8500 GT

Amazon.com

Check prices at:

GeForce 940M

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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