GeForce GTX 750 Ti vs Radeon HD 3870 512MB

Intro

Compare those specifications to the Radeon HD 3870 512MB, which comes with GPU core speed of 775 MHz, and 512 MB of GDDR3 RAM running at 900 MHz through a 256-bit bus. It also features 320(64x5) SPUs, 16 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
Radeon HD 3870 512MB		106 Watts
	Difference: 46 Watts (77%)

Memory Bandwidth

In theory, the GeForce GTX 750 Ti should be a lot faster than the Radeon HD 3870 512MB overall. (explain)

GeForce GTX 750 Ti		86400 MB/sec
Radeon HD 3870 512MB		57600 MB/sec
	Difference: 28800 (50%)

Texel Rate

The GeForce GTX 750 Ti should be much (more or less 229%) more effective at AF than the Radeon HD 3870 512MB. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
Radeon HD 3870 512MB		12400 Mtexels/sec
	Difference: 28400 (229%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 750 Ti is superior to the Radeon HD 3870 512MB, by a large margin. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
Radeon HD 3870 512MB		12400 Mpixels/sec
	Difference: 3920 (32%)

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 transported over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.