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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 works at a frequency of 400 MHz on this specific model. It features 16 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5830, which has GPU core speed of 800 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 1120(224x5) Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

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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

Theoretically speaking, the Radeon HD 5830 should be 900% quicker than the GeForce 8500 GT in general, because of its greater data rate. (explain)

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

Texel Rate

The Radeon HD 5830 should be a lot (approximately 1144%) better at AF than the GeForce 8500 GT. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 5830 is a better choice, and very much so. (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: Bandwidth is the maximum amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on 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 ability to reach the max fill rate.

Display Prices

Hide Prices

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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