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GeForce GTX 660 vs Radeon HD 5830

Intro

The GeForce GTX 660 comes with core speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 960 SPUs as well as 80 TAUs and 24 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5830, which features GPU core speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 256-bit bus. It also is comprised of 1120(224x5) Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 140 Watts
Radeon HD 5830 175 Watts
Difference: 35 Watts (25%)

Memory Bandwidth

In theory, the GeForce GTX 660 will be 13% faster than the Radeon HD 5830 in general, because of its higher data rate. (explain)

GeForce GTX 660 144192 MB/sec
Radeon HD 5830 128000 MB/sec
Difference: 16192 (13%)

Texel Rate

The GeForce GTX 660 will be much (approximately 75%) better at texture filtering than the Radeon HD 5830. (explain)

GeForce GTX 660 78400 Mtexels/sec
Radeon HD 5830 44800 Mtexels/sec
Difference: 33600 (75%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 660 is superior to the Radeon HD 5830, by far. (explain)

GeForce GTX 660 23520 Mpixels/sec
Radeon HD 5830 12800 Mpixels/sec
Difference: 10720 (84%)

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 660

Amazon.com

Check prices at:

Radeon HD 5830

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 660 Radeon HD 5830
Manufacturer nVidia AMD
Year September 2012 February 25, 2010
Code Name GK106 Cypress LE
Memory 2048 MB 1024 MB
Core Speed 980 MHz 800 MHz
Memory Speed 6008 MHz 4000 MHz
Power (Max TDP) 140 watts 175 watts
Bandwidth 144192 MB/sec 128000 MB/sec
Texel Rate 78400 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 23520 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 960 1120(224x5)
Texture Mapping Units 80 56
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 28 nm 40 nm
Transistors 2540 million 2154 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.3 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If 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 amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 660

Amazon.com

Check prices at:

Radeon HD 5830

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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