Geforce GTX 690 vs Radeon R9 270

Intro

Compare all that to the Radeon R9 270, which makes use of a 28 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 memory runs at a frequency of 1400 MHz on this card. It features 1280 SPUs along with 80 Texture Address Units and 32 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 690		13111 points
Radeon R9 270		5943 points
	Difference: 7168 (121%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
Geforce GTX 690		300 Watts
	Difference: 150 Watts (100%)

Memory Bandwidth

The Geforce GTX 690 should theoretically be quite a bit faster than the Radeon R9 270 in general. (explain)

Geforce GTX 690		384512 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 205312 (115%)

Texel Rate

The Geforce GTX 690 should be a lot (more or less 225%) more effective at anisotropic filtering than the Radeon R9 270. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 162240 (225%)

Pixel Rate

The Geforce GTX 690 will be much (about 103%) faster with regards to AA than the Radeon R9 270, and also will be capable of handling higher screen resolutions more effectively. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 29760 (103%)

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 moved across the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.