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Geforce GTX 690 vs Radeon R9 380X

Intro

The Geforce GTX 690 features a GPU core speed of 915 MHz, and the 2048 MB of GDDR5 memory runs at 1502 MHz through a 256-bit bus. It also is made up of 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon R9 380X, which comes with a GPU core clock speed of 970 MHz, and 4096 MB of GDDR5 RAM running at 1425 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

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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 380X		9519 points
	Difference: 3592 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the Geforce GTX 690 should be quite a bit faster than the Radeon R9 380X overall. (explain)

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

Texel Rate

The Geforce GTX 690 should be quite a bit (approximately 89%) faster with regards to AF than the Radeon R9 380X. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon R9 380X		124160 Mtexels/sec
	Difference: 110080 (89%)

Pixel Rate

The Geforce GTX 690 should be quite a bit (about 89%) better at full screen anti-aliasing than the Radeon R9 380X, and able to handle higher resolutions better. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon R9 380X		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

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Geforce GTX 690

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Radeon R9 380X

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	Geforce GTX 690	Radeon R9 380X
Manufacturer	nVidia	AMD
Year	April 2012	November 2015
Code Name	GK104	Tonga XT
Memory	2048 MB (x2)	4096 MB
Core Speed	915 MHz (x2)	970 MHz
Memory Speed	6008 MHz (x2)	5700 MHz
Power (Max TDP)	300 watts	190 watts
Bandwidth	384512 MB/sec	182400 MB/sec
Texel Rate	234240 Mtexels/sec	124160 Mtexels/sec
Pixel Rate	58560 Mpixels/sec	31040 Mpixels/sec
Unified Shaders	1536 (x2)	2048
Texture Mapping Units	128 (x2)	128
Render Output Units	32 (x2)	32
Bus Type	GDDR5	GDDR5
Bus Width	256-bit (x2)	256-bit
Fab Process	28 nm	28 nm
Transistors	3540 million	5000 million
Bus	PCIe 3.0 x16	PCIe 3.0 x16
DirectX Version	DirectX 11.0	DirectX 12.0
OpenGL Version	OpenGL 4.2	OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

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