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GeForce GT 130 vs Radeon HD 6990

Intro

The GeForce GT 130 features a GPU core speed of 500 MHz, and the 768 MB of DDR2 memory is set to run at 250 MHz through a 192-bit bus. It also is made up of 48 Stream Processors, 24 TAUs, and 16 Raster Operation Units.

Compare that to the Radeon HD 6990, which features a core clock speed of 830 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It features 1536 SPUs, 96 Texture Address Units, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130 75 Watts
Radeon HD 6990 375 Watts
Difference: 300 Watts (400%)

Memory Bandwidth

The Radeon HD 6990 should in theory be quite a bit faster than the GeForce GT 130 overall. (explain)

Radeon HD 6990 320000 MB/sec
GeForce GT 130 12000 MB/sec
Difference: 308000 (2567%)

Texel Rate

The Radeon HD 6990 should be a lot (about 1228%) faster with regards to anisotropic filtering than the GeForce GT 130. (explain)

Radeon HD 6990 159360 Mtexels/sec
GeForce GT 130 12000 Mtexels/sec
Difference: 147360 (1228%)

Pixel Rate

The Radeon HD 6990 is a lot (about 564%) faster with regards to full screen anti-aliasing than the GeForce GT 130, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon HD 6990 53120 Mpixels/sec
GeForce GT 130 8000 Mpixels/sec
Difference: 45120 (564%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GT 130

Amazon.com

Check prices at:

Radeon HD 6990

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 130 Radeon HD 6990
Manufacturer nVidia AMD
Year March 10, 2009 March 2011
Code Name G94b Antilles
Memory 768 MB 2048 MB (x2)
Core Speed 500 MHz 830 MHz (x2)
Memory Speed 500 MHz 5000 MHz (x2)
Power (Max TDP) 75 watts 375 watts
Bandwidth 12000 MB/sec 320000 MB/sec
Texel Rate 12000 Mtexels/sec 159360 Mtexels/sec
Pixel Rate 8000 Mpixels/sec 53120 Mpixels/sec
Unified Shaders 48 1536 (x2)
Texture Mapping Units 24 96 (x2)
Render Output Units 16 32 (x2)
Bus Type DDR2 GDDR5
Bus Width 192-bit 256-bit (x2)
Fab Process 55 nm 40 nm
Transistors 505 million 2640 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units 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 processed per second.

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

Display Prices

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GeForce GT 130

Amazon.com

Check prices at:

Radeon HD 6990

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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