Geforce GTX 760 vs Radeon HD 4790

Intro

Compare those specifications to the Radeon HD 4790, which comes with a clock frequency of 600 MHz and a GDDR5 memory frequency of 800 MHz. It also uses a 256-bit bus, and uses a 55 nm design. It is comprised of 640(128x5) SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 760 should in theory perform a lot faster than the Radeon HD 4790 overall. (explain)

Geforce GTX 760		192256 MB/sec
Radeon HD 4790		102400 MB/sec
	Difference: 89856 (88%)

Texel Rate

The Geforce GTX 760 will be much (about 390%) faster with regards to anisotropic filtering than the Radeon HD 4790. (explain)

Geforce GTX 760		94080 Mtexels/sec
Radeon HD 4790		19200 Mtexels/sec
	Difference: 74880 (390%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 760 is the winner, by far. (explain)

Geforce GTX 760		31360 Mpixels/sec
Radeon HD 4790		9600 Mpixels/sec
	Difference: 21760 (227%)

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 max amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the 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 video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.