GeForce GTX 590 vs Radeon HD 7790

Intro

Compare that to the Radeon HD 7790, which features a core clock speed of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is comprised of 896 SPUs, 56 TAUs, and 16 ROPs.

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 7790		4330 points
	Difference: 2350 (54%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
GeForce GTX 590		365 Watts
	Difference: 280 Watts (329%)

Memory Bandwidth

Performance-wise, the GeForce GTX 590 should theoretically be quite a bit superior to the Radeon HD 7790 overall. (explain)

GeForce GTX 590		328320 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 232320 (242%)

Texel Rate

The GeForce GTX 590 will be a lot (approximately 39%) more effective at anisotropic filtering than the Radeon HD 7790. (explain)

GeForce GTX 590		77696 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 21696 (39%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 590 is a better choice, and very much so. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 42272 (264%)

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 maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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