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GeForce 9800 GT 1GB vs Radeon HD 6750 1GB

Intro

The GeForce 9800 GT 1GB uses a 65/55 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 memory is set to run at a speed of 900 MHz on this model. It features 112 SPUs as well as 56 TAUs and 16 ROPs.

Compare those specs to the Radeon HD 6750 1GB, which features GPU clock speed of 725 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also is comprised of 720 Stream Processors, 36 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB 86 Watts
GeForce 9800 GT 1GB 105 Watts
Difference: 19 Watts (22%)

Memory Bandwidth

The Radeon HD 6750 1GB should in theory perform a small bit faster than the GeForce 9800 GT 1GB overall. (explain)

Radeon HD 6750 1GB 64000 MB/sec
GeForce 9800 GT 1GB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce 9800 GT 1GB will be a lot (approximately 29%) better at AF than the Radeon HD 6750 1GB. (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
Radeon HD 6750 1GB 26100 Mtexels/sec
Difference: 7500 (29%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6750 1GB is a better choice, by far. (explain)

Radeon HD 6750 1GB 11600 Mpixels/sec
GeForce 9800 GT 1GB 9600 Mpixels/sec
Difference: 2000 (21%)

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 6750 1GB

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 6750 1GB
Manufacturer nVidia AMD
Year July 2008 January 2011
Code Name G92a/b Juniper Pro
Memory 1024 MB 1024 MB
Core Speed 600 MHz 725 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 105 watts 86 watts
Bandwidth 57600 MB/sec 64000 MB/sec
Texel Rate 33600 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 112 720
Texture Mapping Units 56 36
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 1040 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 1GB

Amazon.com

Check prices at:

Radeon HD 6750 1GB

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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