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GeForce GT 130 vs Radeon HD 6770 1GB

Intro

The GeForce GT 130 makes use of a 55 nm design. nVidia has set the core frequency at 500 MHz. The DDR2 memory runs at a frequency of 250 MHz on this card. It features 48 SPUs along with 24 Texture Address Units and 16 Rasterization Operator Units.

Compare those specs to the Radeon HD 6770 1GB, which features core clock speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 800 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130 75 Watts
Radeon HD 6770 1GB 108 Watts
Difference: 33 Watts (44%)

Memory Bandwidth

The Radeon HD 6770 1GB should theoretically be quite a bit faster than the GeForce GT 130 overall. (explain)

Radeon HD 6770 1GB 67200 MB/sec
GeForce GT 130 12000 MB/sec
Difference: 55200 (460%)

Texel Rate

The Radeon HD 6770 1GB is much (about 200%) faster with regards to texture filtering than the GeForce GT 130. (explain)

Radeon HD 6770 1GB 36000 Mtexels/sec
GeForce GT 130 12000 Mtexels/sec
Difference: 24000 (200%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6770 1GB is the winner, by a large margin. (explain)

Radeon HD 6770 1GB 14400 Mpixels/sec
GeForce GT 130 8000 Mpixels/sec
Difference: 6400 (80%)

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 130

Amazon.com

Check prices at:

Radeon HD 6770 1GB

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 6770 1GB
Manufacturer nVidia AMD
Year March 10, 2009 January 2011
Code Name G94b Juniper XT
Memory 768 MB 1024 MB
Core Speed 500 MHz 900 MHz
Memory Speed 500 MHz 4200 MHz
Power (Max TDP) 75 watts 108 watts
Bandwidth 12000 MB/sec 67200 MB/sec
Texel Rate 12000 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 8000 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 48 800
Texture Mapping Units 24 40
Render Output Units 16 16
Bus Type DDR2 GDDR5
Bus Width 192-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 505 million 1040 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GT 130

Amazon.com

Check prices at:

Radeon HD 6770 1GB

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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