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GeForce GT 230 vs Radeon HD 6790

Intro

The GeForce GT 230 features a GPU clock speed of 550 MHz, and the 1536 MB of DDR3 RAM is set to run at 800 MHz through a 192-bit bus. It also features 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare those specifications to the Radeon HD 6790, which features a GPU core clock speed of 840 MHz, and 1024 MB of GDDR5 RAM running at 1050 MHz through a 256-bit bus. It also is made up of 800 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230 65 Watts
Radeon HD 6790 150 Watts
Difference: 85 Watts (131%)

Memory Bandwidth

In theory, the Radeon HD 6790 is 250% quicker than the GeForce GT 230 in general, because of its higher data rate. (explain)

Radeon HD 6790 134400 MB/sec
GeForce GT 230 38400 MB/sec
Difference: 96000 (250%)

Texel Rate

The Radeon HD 6790 is quite a bit (about 282%) more effective at anisotropic filtering than the GeForce GT 230. (explain)

Radeon HD 6790 33600 Mtexels/sec
GeForce GT 230 8800 Mtexels/sec
Difference: 24800 (282%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6790 is superior to the GeForce GT 230, by a large margin. (explain)

Radeon HD 6790 13440 Mpixels/sec
GeForce GT 230 4400 Mpixels/sec
Difference: 9040 (205%)

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 GT 230

Amazon.com

Check prices at:

Radeon HD 6790

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 GT 230 Radeon HD 6790
Manufacturer nVidia AMD
Year October 2009 April 2011
Code Name GT218 Barts LE
Memory 1536 MB 1024 MB
Core Speed 550 MHz 840 MHz
Memory Speed 1600 MHz 4200 MHz
Power (Max TDP) 65 watts 150 watts
Bandwidth 38400 MB/sec 134400 MB/sec
Texel Rate 8800 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 13440 Mpixels/sec
Unified Shaders 32 800
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR3 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 260 million 1700 million
Bus PCIe 2.0 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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

Display Prices

Hide Prices

GeForce GT 230

Amazon.com

Check prices at:

Radeon HD 6790

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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