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GeForce 8500 GT vs GeForce 940M

Intro

The GeForce 8500 GT comes with a clock speed of 450 MHz and a DDR2 memory frequency of 400 MHz. It also uses a 128-bit bus, and makes use of a 80 nm design. It features 16 SPUs, 8 TAUs, and 4 ROPs.

Compare those specs to the GeForce 940M, which comes with a core clock frequency of 1072 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 64-bit memory bus, and uses a 28 nm design. It is made up of 384 SPUs, 24 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 940M is 25% quicker than the GeForce 8500 GT overall, 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 should be a lot (approximately 615%) faster with regards to AF 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 will be quite a bit (approximately 376%) more effective at anti-aliasing than the GeForce 8500 GT, and able to handle higher screen resolutions better. (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

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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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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