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GeForce 9800 GT 512MB vs Radeon HD 6670 (OEM)

Intro

The GeForce 9800 GT 512MB has a core clock frequency of 600 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 256-bit bus, and makes use of a 65/55 nm design. It features 112 SPUs, 56 TAUs, and 16 Raster Operation Units.

Compare that to the Radeon HD 6670 (OEM), which comes with GPU clock speed of 800 MHz, and 512 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also is comprised of 480 Stream Processors, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 63 Watts
GeForce 9800 GT 512MB 105 Watts
Difference: 42 Watts (67%)

Memory Bandwidth

The Radeon HD 6670 (OEM) should in theory be just a bit faster than the GeForce 9800 GT 512MB in general. (explain)

Radeon HD 6670 (OEM) 64000 MB/sec
GeForce 9800 GT 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce 9800 GT 512MB should be a lot (more or less 75%) faster with regards to texture filtering than the Radeon HD 6670 (OEM). (explain)

GeForce 9800 GT 512MB 33600 Mtexels/sec
Radeon HD 6670 (OEM) 19200 Mtexels/sec
Difference: 14400 (75%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 9800 GT 512MB is the winner, by far. (explain)

GeForce 9800 GT 512MB 9600 Mpixels/sec
Radeon HD 6670 (OEM) 6400 Mpixels/sec
Difference: 3200 (50%)

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

Check prices at:

Radeon HD 6670 (OEM)

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 512MB Radeon HD 6670 (OEM)
Manufacturer nVidia AMD
Year July 2008 February 2011
Code Name G92a/b Turks
Memory 512 MB 512 MB
Core Speed 600 MHz 800 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 105 watts 63 watts
Bandwidth 57600 MB/sec 64000 MB/sec
Texel Rate 33600 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 112 480
Texture Mapping Units 56 24
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 715 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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

Display Prices

Hide Prices

GeForce 9800 GT 512MB

Amazon.com

Check prices at:

Radeon HD 6670 (OEM)

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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