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GeForce 8500 GT vs GeForce 940M

Intro

The GeForce 8500 GT features a GPU clock speed of 450 MHz, and the 512 MB of DDR2 RAM runs at 400 MHz through a 128-bit bus. It also features 16 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Compare all that to the GeForce 940M, which makes use of a 28 nm design. nVidia has set the core speed at 1072 MHz. The DDR3 RAM runs at a speed of 1000 MHz on this model. It features 384 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 940M should be 25% faster than the GeForce 8500 GT in general, because of its higher bandwidth. (explain)

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

Texel Rate

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

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

Pixel Rate

If using a high resolution is important to you, then the GeForce 940M is the winner, by a large margin. (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

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.

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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max 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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