Geforce GTX 690 vs Radeon R9 270

Intro

Compare those specifications to the Radeon R9 270, which has a GPU core clock speed of 900 MHz, and 2048 MB of GDDR5 RAM running at 1400 MHz through a 256-bit bus. It also is made up of 1280 SPUs, 80 Texture Address Units, and 32 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 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

Theoretically speaking, the Geforce GTX 690 should perform 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 will be much (more or less 225%) faster with regards to AF 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 is a lot (approximately 103%) better at full screen anti-aliasing than the Radeon R9 270, and also should be capable of handling higher screen resolutions while still performing well. (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 data (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.