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Radeon HD 7990 vs Radeon Vega Frontier Edition

Intro

The Radeon HD 7990 features a clock speed of 950 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon Vega Frontier Edition, which makes use of a 14 nm design. AMD has clocked the core frequency at 1382 MHz. The HBM2 RAM is set to run at a speed of 1890 MHz on this specific model. It features 4096 SPUs along with 256 Texture Address Units and 64 ROPs.

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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

Theoretically speaking, the Radeon HD 7990 should perform just a bit faster than the Radeon Vega Frontier Edition overall. (explain)

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

Texel Rate

The Radeon Vega Frontier Edition will be quite a bit (about 45%) better at AF than the Radeon HD 7990. (explain)

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

Pixel Rate

The Radeon Vega Frontier Edition is much (approximately 45%) more effective at AA than the Radeon HD 7990, and also able to handle higher screen resolutions without slowing down too much. (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

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Radeon HD 7990

Amazon.com

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Radeon Vega Frontier Edition

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 7990 Radeon Vega Frontier Edition
Manufacturer AMD AMD
Year April 2013 June 2017
Code Name Malta Vega 10 XTX
Memory 3072 MB (x2) 16384 MB
Core Speed 950 MHz (x2) 1382 MHz
Memory Speed 6000 MHz (x2) 1890 MHz
Power (Max TDP) 375 watts 300 watts
Bandwidth 576000 MB/sec 495452 MB/sec
Texel Rate 243200 Mtexels/sec 353792 Mtexels/sec
Pixel Rate 60800 Mpixels/sec 88448 Mpixels/sec
Unified Shaders 2048 (x2) 4096
Texture Mapping Units 128 (x2) 256
Render Output Units 32 (x2) 64
Bus Type GDDR5 HBM2
Bus Width 384-bit (x2) 2048-bit
Fab Process 28 nm 14 nm
Transistors 4313 million 12500 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon HD 7990

Amazon.com

Check prices at:

Radeon Vega Frontier Edition

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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