GeForce GT 310 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 RAM set to run at 1050 MHz through a 128-bit bus. It also is comprised of 800 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 310		31 Watts
Radeon HD 6770 1GB		108 Watts
	Difference: 77 Watts (248%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6770 1GB should in theory be quite a bit superior to the GeForce GT 310 in general. (explain)

Radeon HD 6770 1GB		67200 MB/sec
GeForce GT 310		16000 MB/sec
	Difference: 51200 (320%)

Texel Rate

The Radeon HD 6770 1GB will be quite a bit (more or less 664%) faster with regards to AF than the GeForce GT 310. (explain)

Radeon HD 6770 1GB		36000 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 31288 (664%)

Pixel Rate

The Radeon HD 6770 1GB should be much (about 511%) faster with regards to FSAA than the GeForce GT 310, and also will be capable of handling higher resolutions better. (explain)

Radeon HD 6770 1GB		14400 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 12044 (511%)

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 max amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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