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GeForce GTX 260 Core 216 vs Radeon HD 6790

Intro

The GeForce GTX 260 Core 216 features core speeds of 576 MHz on the GPU, and 999 MHz on the 896 MB of GDDR3 memory. It features 216 SPUs along with 72 Texture Address Units and 28 ROPs.

Compare those specs to the Radeon HD 6790, which uses a 40 nm design. AMD has clocked the core speed at 840 MHz. The GDDR5 memory is set to run at a frequency of 1050 MHz on this specific card. It features 800 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790 150 Watts
GeForce GTX 260 Core 216 202 Watts
Difference: 52 Watts (35%)

Memory Bandwidth

Theoretically, the Radeon HD 6790 should be a small bit faster than the GeForce GTX 260 Core 216 overall. (explain)

Radeon HD 6790 134400 MB/sec
GeForce GTX 260 Core 216 111888 MB/sec
Difference: 22512 (20%)

Texel Rate

The GeForce GTX 260 Core 216 will be much (approximately 23%) faster with regards to texture filtering than the Radeon HD 6790. (explain)

GeForce GTX 260 Core 216 41472 Mtexels/sec
Radeon HD 6790 33600 Mtexels/sec
Difference: 7872 (23%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 260 Core 216 is a better choice, not by a very large margin though. (explain)

GeForce GTX 260 Core 216 16128 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 2688 (20%)

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 GTX 260 Core 216

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 GTX 260 Core 216 Radeon HD 6790
Manufacturer nVidia AMD
Year September 16, 2008 April 2011
Code Name G200 Barts LE
Memory 896 MB 1024 MB
Core Speed 576 MHz 840 MHz
Memory Speed 1998 MHz 4200 MHz
Power (Max TDP) 202 watts 150 watts
Bandwidth 111888 MB/sec 134400 MB/sec
Texel Rate 41472 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 13440 Mpixels/sec
Unified Shaders 216 800
Texture Mapping Units 72 40
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 1700 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 can be processed per second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling 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 could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs 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 lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 260 Core 216

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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