Geforce GTX 690 vs Radeon R9 380 2G

Intro

Compare all of that to the Radeon R9 380 2G, which comes with clock speeds of 970 MHz on the GPU, and 1425 MHz on the 2048 MB of GDDR5 memory. It features 1792 SPUs along with 112 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 380 2G		8850 points
	Difference: 4261 (48%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G		190 Watts
Geforce GTX 690		300 Watts
	Difference: 110 Watts (58%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 690 should theoretically be much better than the Radeon R9 380 2G overall. (explain)

Geforce GTX 690		384512 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 202112 (111%)

Texel Rate

The Geforce GTX 690 will be much (more or less 116%) faster with regards to anisotropic filtering than the Radeon R9 380 2G. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 125600 (116%)

Pixel Rate

The Geforce GTX 690 should be a lot (approximately 89%) better at AA than the Radeon R9 380 2G, and able to handle higher resolutions while still performing well. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon R9 380 2G		31040 Mpixels/sec
	Difference: 27520 (89%)

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 data (measured in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.