Geforce GTX 690 vs Radeon R9 270X

Intro

Compare those specifications to the Radeon R9 270X, which has GPU clock speed of 1000 MHz, and 2048 MB of GDDR5 memory set to run at 1400 MHz through a 256-bit bus. It also is made up of 1280 SPUs, 80 TAUs, 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 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 in general. (explain)

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

Texel Rate

The Geforce GTX 690 is a lot (approximately 193%) more effective at anisotropic filtering 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 (about 83%) more effective at FSAA than the Radeon R9 270X, and also able to handle higher resolutions better. (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 maximum amount of data (in units of megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.