GeForce GTX 750 Ti vs Radeon HD 5830

Intro

Compare all that to the Radeon HD 5830, which uses a 40 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this particular model. It features 1120(224x5) SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
Radeon HD 5830		175 Watts
	Difference: 115 Watts (192%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 should be quite a bit faster than the GeForce GTX 750 Ti overall. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GTX 750 Ti		86400 MB/sec
	Difference: 41600 (48%)

Texel Rate

The Radeon HD 5830 should be a small bit (more or less 10%) more effective at anisotropic filtering than the GeForce GTX 750 Ti. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GTX 750 Ti		40800 Mtexels/sec
	Difference: 4000 (10%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 750 Ti is the winner, by far. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 3520 (28%)

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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.