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GeForce 9800 GT 1GB vs Radeon HD 6750 1GB

Intro

The GeForce 9800 GT 1GB has a GPU clock speed of 600 MHz, and the 1024 MB of GDDR3 RAM is set to run at 900 MHz through a 256-bit bus. It also is made up of 112 SPUs, 56 Texture Address Units, and 16 ROPs.

Compare those specifications to the Radeon HD 6750 1GB, which comes with GPU core speed of 725 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up 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

In theory, the Radeon HD 6750 1GB will be 11% faster than the GeForce 9800 GT 1GB overall, due to its greater data rate. (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 is quite a bit (more or less 29%) better at texture filtering 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

The Radeon HD 6750 1GB is a lot (about 21%) faster with regards to full screen anti-aliasing than the GeForce 9800 GT 1GB, and able to handle higher screen resolutions while still performing well. (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 maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to 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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