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GeForce GTX 660 vs Radeon HD 5830

Intro

The GeForce GTX 660 features a clock frequency of 980 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 192-bit memory bus, and makes use of a 28 nm design. It is made up of 960 SPUs, 80 TAUs, and 24 Raster Operation Units.

Compare all of that to the Radeon HD 5830, which has core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1120(224x5) SPUs along with 56 Texture Address Units and 16 Rasterization Operator 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

As far as performance goes, the GeForce GTX 660 should in theory be just a bit superior to the Radeon HD 5830 overall. (explain)

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

Texel Rate

The GeForce GTX 660 should be quite a bit (approximately 75%) faster with regards to 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

The GeForce GTX 660 should be a lot (approximately 84%) better at anti-aliasing than the Radeon HD 5830, and should be capable of handling higher resolutions better. (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: Bandwidth is the largest amount of information (counted in 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 clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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