GeForce GTX 590 vs Radeon HD 6770

Intro

Compare those specifications to the Radeon HD 6770, which has a clock speed of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It is comprised of 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 590		6680 points
Radeon HD 6770		1520 points
	Difference: 5160 (339%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
GeForce GTX 590		365 Watts
	Difference: 257 Watts (238%)

Memory Bandwidth

In theory, the GeForce GTX 590 should be 389% quicker than the Radeon HD 6770 in general, because of its greater bandwidth. (explain)

GeForce GTX 590		328320 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 261120 (389%)

Texel Rate

The GeForce GTX 590 should be much (about 116%) more effective at texture filtering than the Radeon HD 6770. (explain)

GeForce GTX 590		77696 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 41696 (116%)

Pixel Rate

The GeForce GTX 590 will be a lot (about 305%) faster with regards to FSAA than the Radeon HD 6770, and should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 43872 (305%)

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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.