Radeon HD 7990 vs Radeon Vega Frontier Edition

Intro

Compare those specifications to the Radeon Vega Frontier Edition, which comes with GPU clock speed of 1382 MHz, and 16384 MB of HBM2 RAM running at 1890 MHz through a 2048-bit bus. It also is comprised of 4096 SPUs, 256 TAUs, and 64 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 Vega Frontier Edition		21379 points
Radeon HD 7990		15520 points
	Difference: 5859 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon Vega Frontier Edition		300 Watts
Radeon HD 7990		375 Watts
	Difference: 75 Watts (25%)

Memory Bandwidth

In theory, the Radeon HD 7990 is 16% faster than the Radeon Vega Frontier Edition overall, because of its higher bandwidth. (explain)

Radeon HD 7990		576000 MB/sec
Radeon Vega Frontier Edition		495452 MB/sec
	Difference: 80548 (16%)

Texel Rate

The Radeon Vega Frontier Edition should be a lot (about 45%) better at texture filtering than the Radeon HD 7990. (explain)

Radeon Vega Frontier Edition		353792 Mtexels/sec
Radeon HD 7990		243200 Mtexels/sec
	Difference: 110592 (45%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon Vega Frontier Edition is superior to the Radeon HD 7990, and very much so. (explain)

Radeon Vega Frontier Edition		88448 Mpixels/sec
Radeon HD 7990		60800 Mpixels/sec
	Difference: 27648 (45%)

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 information (measured in megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.