Radeon R9 295X2 vs Radeon R9 380 4G

Intro

Compare all of that to the Radeon R9 380 4G, which features core clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 RAM. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

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 4G		8837 points
	Difference: 12368 (140%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G		190 Watts
Radeon R9 295X2		500 Watts
	Difference: 310 Watts (163%)

Memory Bandwidth

Theoretically, the Radeon R9 295X2 should be quite a bit faster than the Radeon R9 380 4G overall. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon R9 380 4G		182400 MB/sec
	Difference: 457600 (251%)

Texel Rate

The Radeon R9 295X2 will be a lot (about 230%) faster with regards to AF than the Radeon R9 380 4G. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Radeon R9 380 4G		108640 Mtexels/sec
	Difference: 249696 (230%)

Pixel Rate

The Radeon R9 295X2 is much (more or less 320%) better at AA than the Radeon R9 380 4G, and capable of handling higher resolutions while still performing well. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon R9 380 4G		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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.