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GeForce GTX 470 vs Radeon HD 5830

Intro

The GeForce GTX 470 comes with clock speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 memory. It features 448 SPUs along with 56 TAUs and 40 ROPs.

Compare those specifications to the Radeon HD 5830, which has a core clock frequency of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 256-bit bus, and uses a 40 nm design. It features 1120(224x5) SPUs, 56 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5830 175 Watts
GeForce GTX 470 215 Watts
Difference: 40 Watts (23%)

Memory Bandwidth

In theory, the GeForce GTX 470 should be 5% faster than the Radeon HD 5830 in general, because of its higher bandwidth. (explain)

GeForce GTX 470 133920 MB/sec
Radeon HD 5830 128000 MB/sec
Difference: 5920 (5%)

Texel Rate

The Radeon HD 5830 is much (about 32%) faster with regards to AF than the GeForce GTX 470. (explain)

Radeon HD 5830 44800 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 10808 (32%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 470 is a better choice, and very much so. (explain)

GeForce GTX 470 24280 Mpixels/sec
Radeon HD 5830 12800 Mpixels/sec
Difference: 11480 (90%)

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 GTX 470

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 GTX 470 Radeon HD 5830
Manufacturer nVidia AMD
Year March 2010 February 25, 2010
Code Name GF100 Cypress LE
Memory 1280 MB 1024 MB
Core Speed 607 MHz 800 MHz
Memory Speed 3348 MHz 4000 MHz
Power (Max TDP) 215 watts 175 watts
Bandwidth 133920 MB/sec 128000 MB/sec
Texel Rate 33992 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 448 1120(224x5)
Texture Mapping Units 56 56
Render Output Units 40 16
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 2154 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the 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 most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 470

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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