GeForce GTX 590 vs Radeon HD 5770

Intro

Compare that to the Radeon HD 5770, which features clock speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
GeForce GTX 590		365 Watts
	Difference: 257 Watts (238%)

Memory Bandwidth

In theory, the GeForce GTX 590 should be 328% quicker than the Radeon HD 5770 overall, due to its greater bandwidth. (explain)

GeForce GTX 590		328320 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 251520 (328%)

Texel Rate

The GeForce GTX 590 is much (about 129%) more effective at AF than the Radeon HD 5770. (explain)

GeForce GTX 590		77696 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 43696 (129%)

Pixel Rate

The GeForce GTX 590 should be quite a bit (approximately 328%) faster with regards to FSAA than the Radeon HD 5770, and also will be capable of handling higher resolutions better. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 44672 (328%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.