GeForce GTX 590 vs Radeon HD 6790

Intro

Compare those specifications to the Radeon HD 6790, which features GPU core speed of 840 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 256-bit bus. It also features 800 Stream Processors, 40 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 6790		2150 points
	Difference: 4530 (211%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
GeForce GTX 590		365 Watts
	Difference: 215 Watts (143%)

Memory Bandwidth

The GeForce GTX 590 should theoretically be much faster than the Radeon HD 6790 overall. (explain)

GeForce GTX 590		328320 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 193920 (144%)

Texel Rate

The GeForce GTX 590 should be much (more or less 131%) more effective at anisotropic filtering than the Radeon HD 6790. (explain)

GeForce GTX 590		77696 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 44096 (131%)

Pixel Rate

The GeForce GTX 590 should be a lot (approximately 334%) faster with regards to anti-aliasing than the Radeon HD 6790, and capable of handling higher resolutions better. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 44832 (334%)

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 data (in units of MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 reach the max fill rate.