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GeForce 8500 GT vs GeForce GT 130

Intro

The GeForce 8500 GT comes with a GPU clock speed of 450 MHz, and the 512 MB of DDR2 RAM is set to run at 400 MHz through a 128-bit bus. It also features 16 Stream Processors, 8 Texture Address Units, and 4 Raster Operation Units.

Compare those specs to the GeForce GT 130, which makes use of a 55 nm design. nVidia has clocked the core speed at 500 MHz. The DDR2 memory works at a speed of 250 MHz on this particular card. It features 48 SPUs along with 24 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT 45 Watts
GeForce GT 130 75 Watts
Difference: 30 Watts (67%)

Memory Bandwidth

Theoretically speaking, the GeForce 8500 GT is 7% quicker than the GeForce GT 130 in general, because of its greater data rate. (explain)

GeForce 8500 GT 12800 MB/sec
GeForce GT 130 12000 MB/sec
Difference: 800 (7%)

Texel Rate

The GeForce GT 130 should be much (about 233%) more effective at anisotropic filtering than the GeForce 8500 GT. (explain)

GeForce GT 130 12000 Mtexels/sec
GeForce 8500 GT 3600 Mtexels/sec
Difference: 8400 (233%)

Pixel Rate

The GeForce GT 130 should be a lot (more or less 344%) more effective at AA than the GeForce 8500 GT, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GT 130 8000 Mpixels/sec
GeForce 8500 GT 1800 Mpixels/sec
Difference: 6200 (344%)

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 GT 130

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 GT 130
Manufacturer nVidia nVidia
Year April 2007 March 10, 2009
Code Name G86 G94b
Memory 512 MB 768 MB
Core Speed 450 MHz 500 MHz
Memory Speed 800 MHz 500 MHz
Power (Max TDP) 45 watts 75 watts
Bandwidth 12800 MB/sec 12000 MB/sec
Texel Rate 3600 Mtexels/sec 12000 Mtexels/sec
Pixel Rate 1800 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 16 48
Texture Mapping Units 8 24
Render Output Units 4 16
Bus Type DDR2 DDR2
Bus Width 128-bit 192-bit
Fab Process 80 nm 55 nm
Transistors 210 million 505 million
Bus PCIe x16, PCI, PCIe x16 2.0 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory 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 GT 130

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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