Geforce GTX 780 vs Radeon R9 295X2

Intro

Compare that to the Radeon R9 295X2, which features a GPU core clock speed of 1018 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 512-bit bus. It also is comprised of 2816 Stream Processors, 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
Geforce GTX 780		10082 points
	Difference: 11123 (110%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 780		250 Watts
Radeon R9 295X2		500 Watts
	Difference: 250 Watts (100%)

Memory Bandwidth

As far as performance goes, the Radeon R9 295X2 should in theory be a lot better than the Geforce GTX 780 overall. (explain)

Radeon R9 295X2		640000 MB/sec
Geforce GTX 780		288384 MB/sec
	Difference: 351616 (122%)

Texel Rate

The Radeon R9 295X2 should be quite a bit (about 116%) more effective at texture filtering than the Geforce GTX 780. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 192640 (116%)

Pixel Rate

The Radeon R9 295X2 should be a lot (more or less 215%) better at AA than the Geforce GTX 780, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 88880 (215%)

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 (in units of MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 can be applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the 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 amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.