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GeForce 9800 GT 1GB vs Radeon HD 5670

Intro

The GeForce 9800 GT 1GB uses a 65/55 nm design. nVidia has set the core speed at 600 MHz. The GDDR3 RAM works at a speed of 900 MHz on this particular card. It features 112 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Compare those specs to the Radeon HD 5670, which makes use of a 40 nm design. AMD has clocked the core frequency at 775 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this particular model. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
GeForce 9800 GT 1GB 105 Watts
Difference: 44 Watts (72%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5670 should be 11% faster than the GeForce 9800 GT 1GB in general, because of its higher data rate. (explain)

Radeon HD 5670 64000 MB/sec
GeForce 9800 GT 1GB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce 9800 GT 1GB should be much (approximately 117%) better at AF than the Radeon HD 5670. (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 18100 (117%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 9800 GT 1GB is the winner, by a large margin. (explain)

GeForce 9800 GT 1GB 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 1GB

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.

Specifications

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Model GeForce 9800 GT 1GB Radeon HD 5670
Manufacturer nVidia AMD
Year July 2008 January 14, 2010
Code Name G92a/b Redwood XT
Memory 1024 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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 1GB

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 1GB vs Radeon HD 5670”
thetrialshot says:

no game benchmarks for this cards?

Grant says:

Radeon > GeForce

MAROOF KHAN says:

RADEON 5760 IS JST A BIT SLOWER THAN
9800 GT MAY BE THE DIFFERENCE OG 4-5 FPS IN MOST OF THE GAMES

henrique dos reis lima says:

olha ah hd 5670 da pra usa numa fonte generica de 500 watts mais ela é uma placa muito boa vale a pena ter uma dessa vou pegar por 170 R$

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