GeForce GTX 295 vs Radeon R9 380 2G

Intro

Compare that to the Radeon R9 380 2G, which comes with a GPU core clock speed of 970 MHz, and 2048 MB of GDDR5 RAM set to run at 1425 MHz through a 256-bit bus. It also is made up of 1792 Stream Processors, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G		190 Watts
GeForce GTX 295		289 Watts
	Difference: 99 Watts (52%)

Memory Bandwidth

In theory, the GeForce GTX 295 is 23% quicker than the Radeon R9 380 2G overall, because of its greater bandwidth. (explain)

GeForce GTX 295		223776 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 41376 (23%)

Texel Rate

The Radeon R9 380 2G should be a little bit (more or less 18%) more effective at AF than the GeForce GTX 295. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
GeForce GTX 295		92160 Mtexels/sec
	Difference: 16480 (18%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 295 is a better choice, but it probably won't make a huge difference. (explain)

GeForce GTX 295		32256 Mpixels/sec
Radeon R9 380 2G		31040 Mpixels/sec
	Difference: 1216 (4%)

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 maximum amount of data (measured in MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If 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 processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.