Geforce GTX 760 vs Radeon HD 7990

Intro

Compare all of that to the Radeon HD 7990, which comes with a core clock speed of 950 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 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 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

Theoretically, the Radeon HD 7990 should perform 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%) better 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

The Radeon HD 7990 should be a lot (more or less 94%) more effective at anti-aliasing than the Geforce GTX 760, and should be capable of handling higher screen resolutions better. (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 largest amount of information (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.