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GeForce 8500 GT vs GeForce 9500 GT DDR2

Intro

The GeForce 8500 GT comes with clock speeds of 450 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 RAM. It features 16 SPUs along with 8 Texture Address Units and 4 ROPs.

Compare those specifications to the GeForce 9500 GT DDR2, which features clock speeds of 550 MHz on the GPU, and 500 MHz on the 256 MB of DDR2 RAM. It features 32 SPUs along with 16 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT 45 Watts
GeForce 9500 GT DDR2 50 Watts
Difference: 5 Watts (11%)

Memory Bandwidth

In theory, the GeForce 9500 GT DDR2 should be 25% quicker than the GeForce 8500 GT in general, due to its greater data rate. (explain)

GeForce 9500 GT DDR2 16000 MB/sec
GeForce 8500 GT 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 9500 GT DDR2 will be much (more or less 144%) faster with regards to AF than the GeForce 8500 GT. (explain)

GeForce 9500 GT DDR2 8800 Mtexels/sec
GeForce 8500 GT 3600 Mtexels/sec
Difference: 5200 (144%)

Pixel Rate

The GeForce 9500 GT DDR2 should be a lot (more or less 144%) faster with regards to FSAA than the GeForce 8500 GT, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce 9500 GT DDR2 4400 Mpixels/sec
GeForce 8500 GT 1800 Mpixels/sec
Difference: 2600 (144%)

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 9500 GT DDR2

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 9500 GT DDR2
Manufacturer nVidia nVidia
Year April 2007 July 2008
Code Name G86 G96a
Memory 512 MB 256 MB
Core Speed 450 MHz 550 MHz
Memory Speed 800 MHz 1000 MHz
Power (Max TDP) 45 watts 50 watts
Bandwidth 12800 MB/sec 16000 MB/sec
Texel Rate 3600 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 1800 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 16 32
Texture Mapping Units 8 16
Render Output Units 4 8
Bus Type DDR2 DDR2
Bus Width 128-bit 128-bit
Fab Process 80 nm 65 nm
Transistors 210 million 314 million
Bus PCIe x16, PCI, PCIe x16 2.0 PCIe x16 2.0, PCI
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 can be processed in one second. This figure is worked out by multiplying the total amount of texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8500 GT

Amazon.com

Check prices at:

GeForce 9500 GT DDR2

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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