GeForce GT 310 vs Radeon HD 7750

Intro

Compare all that to the Radeon HD 7750, which has a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is comprised of 512 SPUs, 32 TAUs, 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 7750		55 Watts
	Difference: 24 Watts (77%)

Memory Bandwidth

Performance-wise, the Radeon HD 7750 should theoretically be much better than the GeForce GT 310 overall. (explain)

Radeon HD 7750		72000 MB/sec
GeForce GT 310		16000 MB/sec
	Difference: 56000 (350%)

Texel Rate

The Radeon HD 7750 will be a lot (more or less 443%) better at anisotropic filtering than the GeForce GT 310. (explain)

Radeon HD 7750		25600 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 20888 (443%)

Pixel Rate

The Radeon HD 7750 should be a lot (more or less 443%) better at anti-aliasing than the GeForce GT 310, and should be able to handle higher resolutions while still performing well. (explain)

Radeon HD 7750		12800 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 10444 (443%)

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 largest amount of information (counted in MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 - the lower the bandwidth is, the lower the ability to reach the max fill rate.