Radeon R9 295X2 vs Radeon R9 380 2G

Intro

Compare those specifications to the Radeon R9 380 2G, which comes with a core clock frequency of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1792 SPUs, 112 Texture Address Units, 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

Radeon R9 295X2		21205 points
Radeon R9 380 2G		8850 points
	Difference: 12355 (140%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G		190 Watts
Radeon R9 295X2		500 Watts
	Difference: 310 Watts (163%)

Memory Bandwidth

As far as performance goes, the Radeon R9 295X2 should theoretically be quite a bit better than the Radeon R9 380 2G in general. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 457600 (251%)

Texel Rate

The Radeon R9 295X2 will be a lot (approximately 230%) better at texture filtering than the Radeon R9 380 2G. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 249696 (230%)

Pixel Rate

The Radeon R9 295X2 is much (about 320%) better at FSAA than the Radeon R9 380 2G, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon R9 380 2G		31040 Mpixels/sec
	Difference: 99264 (320%)

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: Bandwidth is the largest amount of data (in units of MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip 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 Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.