Geforce GTX 690 vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which comes with core speeds of 1050 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 memory. It features 2816 SPUs as well as 176 TAUs and 64 Rasterization Operator 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

Radeon R9 390X 8G		13555 points
Geforce GTX 690		13111 points
	Difference: 444 (3%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 390X 8G		275 Watts
Geforce GTX 690		300 Watts
	Difference: 25 Watts (9%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 690 should theoretically be just a bit better than the Radeon R9 390X 8G overall. (explain)

Geforce GTX 690		384512 MB/sec
Radeon R9 390X 8G		384000 MB/sec
	Difference: 512 (0%)

Texel Rate

The Geforce GTX 690 is a lot (approximately 27%) faster with regards to texture filtering than the Radeon R9 390X 8G. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 49440 (27%)

Pixel Rate

The Radeon R9 390X 8G will be a bit (more or less 15%) better at anti-aliasing than the Geforce GTX 690, and also will be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Geforce GTX 690		58560 Mpixels/sec
	Difference: 8640 (15%)

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 largest amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.