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GeForce 8500 GT vs Radeon HD 5830

Intro

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

Compare that to the Radeon HD 5830, which uses a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 RAM is set to run at a frequency of 1000 MHz on this particular model. It features 1120(224x5) SPUs along with 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT 45 Watts
Radeon HD 5830 175 Watts
Difference: 130 Watts (289%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5830 should in theory be a lot superior to the GeForce 8500 GT overall. (explain)

Radeon HD 5830 128000 MB/sec
GeForce 8500 GT 12800 MB/sec
Difference: 115200 (900%)

Texel Rate

The Radeon HD 5830 is quite a bit (more or less 1144%) faster with regards to texture filtering than the GeForce 8500 GT. (explain)

Radeon HD 5830 44800 Mtexels/sec
GeForce 8500 GT 3600 Mtexels/sec
Difference: 41200 (1144%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5830 is the winner, by a large margin. (explain)

Radeon HD 5830 12800 Mpixels/sec
GeForce 8500 GT 1800 Mpixels/sec
Difference: 11000 (611%)

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:

Radeon HD 5830

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 Radeon HD 5830
Manufacturer nVidia AMD
Year April 2007 February 25, 2010
Code Name G86 Cypress LE
Memory 512 MB 1024 MB
Core Speed 450 MHz 800 MHz
Memory Speed 800 MHz 4000 MHz
Power (Max TDP) 45 watts 175 watts
Bandwidth 12800 MB/sec 128000 MB/sec
Texel Rate 3600 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 1800 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 16 1120(224x5)
Texture Mapping Units 8 56
Render Output Units 4 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 256-bit
Fab Process 80 nm 40 nm
Transistors 210 million 2154 million
Bus PCIe x16, PCI, PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 8500 GT

Amazon.com

Check prices at:

Radeon HD 5830

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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