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GeForce GTX 470 vs Radeon HD 5850

Intro

The GeForce GTX 470 uses a 40 nm design. nVidia has set the core speed at 607 MHz. The GDDR5 RAM is set to run at a speed of 837 MHz on this particular model. It features 448 SPUs along with 56 TAUs and 40 Rasterization Operator Units.

Compare those specs to the Radeon HD 5850, which makes use of a 40 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this specific model. It features 1440(288x5) SPUs as well as 72 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850 151 Watts
GeForce GTX 470 215 Watts
Difference: 64 Watts (42%)

Memory Bandwidth

In theory, the GeForce GTX 470 should be 5% faster than the Radeon HD 5850 overall, due to its greater bandwidth. (explain)

GeForce GTX 470 133920 MB/sec
Radeon HD 5850 128000 MB/sec
Difference: 5920 (5%)

Texel Rate

The Radeon HD 5850 will be a lot (more or less 54%) more effective at anisotropic filtering than the GeForce GTX 470. (explain)

Radeon HD 5850 52200 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 18208 (54%)

Pixel Rate

The GeForce GTX 470 will be a little bit (approximately 5%) faster with regards to FSAA than the Radeon HD 5850, and also capable of handling higher screen resolutions better. (explain)

GeForce GTX 470 24280 Mpixels/sec
Radeon HD 5850 23200 Mpixels/sec
Difference: 1080 (5%)

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 5850

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 5850
Manufacturer nVidia AMD
Year March 2010 September 30, 2009
Code Name GF100 Cypress PRO
Memory 1280 MB 1024 MB
Core Speed 607 MHz 725 MHz
Memory Speed 3348 MHz 4000 MHz
Power (Max TDP) 215 watts 151 watts
Bandwidth 133920 MB/sec 128000 MB/sec
Texel Rate 33992 Mtexels/sec 52200 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 23200 Mpixels/sec
Unified Shaders 448 1440(288x5)
Texture Mapping Units 56 72
Render Output Units 40 32
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 largest amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 470

Amazon.com

Check prices at:

Radeon HD 5850

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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