Radeon R9 280X vs Radeon R9 295X2

Intro

Compare those specifications to the Radeon R9 295X2, which has GPU core speed of 1018 MHz, and 4096 MB of GDDR5 RAM set to run at 1250 MHz through a 512-bit bus. It also features 2816 SPUs, 176 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

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 280X		8886 points
	Difference: 12319 (139%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 280X		250 Watts
Radeon R9 295X2		500 Watts
	Difference: 250 Watts (100%)

Memory Bandwidth

In theory, the Radeon R9 295X2 should be 122% faster than the Radeon R9 280X in general, because of its higher data rate. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon R9 280X		288000 MB/sec
	Difference: 352000 (122%)

Texel Rate

The Radeon R9 295X2 will be a lot (more or less 229%) faster with regards to anisotropic filtering than the Radeon R9 280X. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 249536 (229%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 295X2 is superior to the Radeon R9 280X, by far. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 103104 (379%)

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 max amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it must 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.