GeForce GTX 750 Ti vs Radeon HD 3850 512MB

Intro

Compare all that to the Radeon HD 3850 512MB, which comes with core clock speeds of 668 MHz on the GPU, and 828 MHz on the 512 MB of GDDR3 memory. It features 320(64x5) SPUs along with 16 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
Radeon HD 3850 512MB		75 Watts
	Difference: 15 Watts (25%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 750 Ti should be 63% faster than the Radeon HD 3850 512MB in general, because of its greater bandwidth. (explain)

GeForce GTX 750 Ti		86400 MB/sec
Radeon HD 3850 512MB		52992 MB/sec
	Difference: 33408 (63%)

Texel Rate

The GeForce GTX 750 Ti will be much (approximately 282%) more effective at texture filtering than the Radeon HD 3850 512MB. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
Radeon HD 3850 512MB		10688 Mtexels/sec
	Difference: 30112 (282%)

Pixel Rate

The GeForce GTX 750 Ti should be quite a bit (approximately 53%) more effective at FSAA than the Radeon HD 3850 512MB, and will be able to handle higher resolutions better. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
Radeon HD 3850 512MB		10688 Mpixels/sec
	Difference: 5632 (53%)

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 information (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock 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 processed in one second.

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