Geforce GTX 760 vs Radeon HD 7990

Intro

Compare those specs to the Radeon HD 7990, which features a clock frequency of 950 MHz and a GDDR5 memory frequency of 1500 MHz. It also features a 384-bit memory bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 TAUs, 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 HD 7990		15520 points
Geforce GTX 760		5923 points
	Difference: 9597 (162%)

Ethereum Mining Hash Rate

Radeon HD 7990		32 Mh/s
Geforce GTX 760		13 Mh/s
	Difference: 19 (146%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 760		170 Watts
Radeon HD 7990		375 Watts
	Difference: 205 Watts (121%)

Memory Bandwidth

The Radeon HD 7990 should in theory be quite a bit faster than the Geforce GTX 760 in general. (explain)

Radeon HD 7990		576000 MB/sec
Geforce GTX 760		192256 MB/sec
	Difference: 383744 (200%)

Texel Rate

The Radeon HD 7990 will be a lot (approximately 159%) more effective at anisotropic filtering than the Geforce GTX 760. (explain)

Radeon HD 7990		243200 Mtexels/sec
Geforce GTX 760		94080 Mtexels/sec
	Difference: 149120 (159%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 7990 is the winner, by far. (explain)

Radeon HD 7990		60800 Mpixels/sec
Geforce GTX 760		31360 Mpixels/sec
	Difference: 29440 (94%)

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 maximum amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.