Radeon HD 7990 vs Radeon R9 Fury X

Intro

Compare that to the Radeon R9 Fury X, which comes with a core clock speed of 1050 MHz and a HBM memory speed of 500 MHz. It also uses a 4096-bit bus, and makes use of a 28 nm design. It features 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

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
Radeon R9 Fury X		14793 points
	Difference: 727 (5%)

Ethereum Mining Hash Rate

Radeon HD 7990		32 Mh/s
Radeon R9 Fury X		30 Mh/s
	Difference: 2 (7%)

Zcash Mining Hash Rate

Radeon HD 7990		513 Sol/s
Radeon R9 Fury X		450 Sol/s
	Difference: 63 (14%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Fury X		275 Watts
Radeon HD 7990		375 Watts
	Difference: 100 Watts (36%)

Memory Bandwidth

In theory, the Radeon HD 7990 should be a small bit faster than the Radeon R9 Fury X overall. (explain)

Radeon HD 7990		576000 MB/sec
Radeon R9 Fury X		512000 MB/sec
	Difference: 64000 (13%)

Texel Rate

The Radeon R9 Fury X will be a little bit (approximately 11%) more effective at texture filtering than the Radeon HD 7990. (explain)

Radeon R9 Fury X		268800 Mtexels/sec
Radeon HD 7990		243200 Mtexels/sec
	Difference: 25600 (11%)

Pixel Rate

The Radeon R9 Fury X will be just a bit (more or less 11%) faster with regards to FSAA than the Radeon HD 7990, and able to handle higher screen resolutions better. (explain)

Radeon R9 Fury X		67200 Mpixels/sec
Radeon HD 7990		60800 Mpixels/sec
	Difference: 6400 (11%)

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 data (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.