Geforce GTX 690 vs Radeon R9 270X

Intro

Compare those specifications to the Radeon R9 270X, which makes use of a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM runs at a frequency of 1400 MHz on this specific card. It features 1280 SPUs along with 80 TAUs and 32 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

Geforce GTX 690		13111 points
Radeon R9 270X		6590 points
	Difference: 6521 (99%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X		180 Watts
Geforce GTX 690		300 Watts
	Difference: 120 Watts (67%)

Memory Bandwidth

Performance-wise, the Geforce GTX 690 should in theory be quite a bit better than the Radeon R9 270X overall. (explain)

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

Texel Rate

The Geforce GTX 690 will be quite a bit (more or less 193%) more effective at AF than the Radeon R9 270X. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 154240 (193%)

Pixel Rate

The Geforce GTX 690 will be quite a bit (approximately 83%) better at full screen anti-aliasing than the Radeon R9 270X, and also should be able to handle higher resolutions while still performing well. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 26560 (83%)

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's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, 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 most pixels the video card can possibly record to its local memory per 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.