GeForce GT 130 vs Radeon HD 6770 1GB

Intro

Compare those specifications to the Radeon HD 6770 1GB, which features GPU core speed of 900 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 128-bit bus. It also is made up of 800 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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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

As far as performance goes, the Radeon HD 6770 1GB should in theory be quite a bit better than the GeForce GT 130 in general. (explain)

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

Texel Rate

The Radeon HD 6770 1GB will be a lot (approximately 200%) better at anisotropic 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

The Radeon HD 6770 1GB is much (approximately 80%) faster with regards to FSAA than the GeForce GT 130, and also should be capable of handling higher screen resolutions without losing too much performance. (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

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 ability to reach the maximum fill rate.