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GeForce 9800 GT 512MB vs Radeon HD 5670

Intro

The GeForce 9800 GT 512MB uses a 65/55 nm design. nVidia has set the core frequency at 600 MHz. The GDDR3 memory works at a speed of 900 MHz on this particular model. It features 112 SPUs along with 56 Texture Address Units and 16 ROPs.

Compare those specifications to the Radeon HD 5670, which comes with GPU clock speed of 775 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) SPUs, 20 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
GeForce 9800 GT 512MB 105 Watts
Difference: 44 Watts (72%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5670 will be 11% quicker than the GeForce 9800 GT 512MB overall, due to its higher bandwidth. (explain)

Radeon HD 5670 64000 MB/sec
GeForce 9800 GT 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce 9800 GT 512MB will be quite a bit (more or less 117%) more effective at texture filtering than the Radeon HD 5670. (explain)

GeForce 9800 GT 512MB 33600 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 18100 (117%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 9800 GT 512MB is a better choice, by a large margin. (explain)

GeForce 9800 GT 512MB 9600 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 3400 (55%)

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 9800 GT 512MB

Amazon.com

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Radeon HD 5670

Amazon.com

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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 9800 GT 512MB Radeon HD 5670
Manufacturer nVidia AMD
Year July 2008 January 14, 2010
Code Name G92a/b Redwood XT
Memory 512 MB 1024 MB
Core Speed 600 MHz 775 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 105 watts 61 watts
Bandwidth 57600 MB/sec 64000 MB/sec
Texel Rate 33600 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 112 400(80x5)
Texture Mapping Units 56 20
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 627 million
Bus 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 information (counted in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 can be applied in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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

Display Prices

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GeForce 9800 GT 512MB

Amazon.com

Check prices at:

Radeon HD 5670

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.

Comments

4 Responses to “GeForce 9800 GT 512MB vs Radeon HD 5670”
Graphics Card Ranking (5th Time And Last) (Updated Daily) - Page 51 - Overclock.net - Overclocking.net says:

[...] it goes: http://www.hwcompare.com/156/geforce...adeon-hd-5670/ its nt much buh still 5670 is better. According to it, even 240 Gt is lower than 5670 as its lower [...]

thetrialshot says:

looks like hd5670 would be fast, just wait a few weeks when its driver is already matured so we can play modern games at good settings 🙂

Anonymous says:

[...] Radeon HD 4770 vs Radeon HD 5670 – Performance Comparison Benchmarks @ Hardware Compare http://www.hwcompare.com/156/geforce...adeon-hd-5670/ =) Editado por Lyonhead en 20-Mar-2011 a las [...]

henrique dos reis lima says:

ahh pra mim ta bom pagar 170R$ nela uso fonte generica ta otimo

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