ASRock RX590 Phantom Gaming U 8G OC



The following system was used to test the graphics card:
– Processor: Intel i5 6600K @ 3.9 GHz
– Motherboard: ASRock Fatal1ty Z270 Professional Gaming i7
– RAM: Ballistix Tactical Tracer 16GB DDR4 @ 2666MHz
– SSD: Samsung 840 EVO 120GB
– HDD: WD 1 TB Blue
– PSU: SeaSonic Snow Silent 750W
– CPU Cooler: SilverStone Tundra TD02-E
– Case: Phanteks Enthoo Luxe White
– Thermal compound: Arctic Cooling MX-4


To test the graphics card, the AMD Adrenalin 2019 Edition 19.3.2 driver was used, being the latest AMD driver available at the time of writing the review.
All the games used to test the graphics cards are set to their highest quality settings with the resolution 1920 x 1080. Both the games and benchmarks used were run three times.

The software used to measure the temperature and frames per second (FPS) are the following:
– AIDA64 Extreme V5.99.4900
– GPU-Z 2.18.0
– MSI Afterburner 4.6.0
– Fraps

The overclocking has been done using the default fan settings. Each graphic card overclock differently due to different batches of memory chips used as well as the variation in the manufacturing process of the graphics core. This means that each graphics card will overclock differently in both frequencies obtained and voltage required.
In the case of the RX590 Phantom Gaming U OC model, a maximum overclock of 1623MHz Base Clock and 2230 Memory Clock was achieved. These frequencies resulted in an overall gain of 7.5%.


The test results are as follows:

Unigine Valley Benchmark 1.0


Unigine Valley Benchmark 1.0 Score


Grand Theft Auto V


Grand Theft Auto V (Low 0.1%)


The Witcher 3: Wild Hunt


The Witcher 3: Wild Hunt (Low 0.1%)


Deus Ex: Mankind Divided


Deus Ex: Mankind Divided (Low 0.1%)


Temp. Performance


The Idle tests consists of the system left at the Desktop for 30 minutes, the power consumption is measured during the test.
Full Load: Represents the power consumption of the graphics card while playing a modern video game, in this case the benchmark of Tomb Raider 2013 with the following settings: 1920 x 1080, Ultra Preset, TressFX OFF, 4xAA.
Peak: Represents the power consumption of the graphics card during a synthetic benchmark, in this case FurMark 1.15.1.


The noise level was measured at three different distances from the fans (10cm, 20cm, 30cm.) the noise was measured with a margin of error of ± 5 db. In the case of the ASRock RX590 PG X OC 8GB, both fans will turn off when the graphic card has a low load. This means, that during internet browsing, movie rendering or other light tasks, both fans will not spin to eliminate the noise.



Full Load

Final thoughts

The ASRock RX590 Phantom Gaming U OC is an alternative to the regular PG RX 590 X graphics card. The changes brought by this new graphic card variant are the addressable RGB system and a single internal Mini Display Port.
The design of this graphic card is close to the RX 590 X version, the exception being of course, the illuminated Phantom Gaming logo and name placed on the side of the card. The back of the graphic card is protected by a metal backplate which sports a brushed texture and the Phantom Gaming abstract design.

In terms of performance, no improvements were made over the RX 590 X OC model, in fact, the overall performance in gaming and synthetic benchmarks is nearly identical. This is why in the graphs, the RX 590 X OC model is highlighted, to prevent clutter. In addition, internal components used are the same on both graphic cards.

The cooling system is adequate, the RX 590 U model reached a maximum temperature of 79 degrees Celsius while overclocking, with an ambient temperature of 26 degrees Celsius. The two 90mm fans will stop spinning when there is no load on the graphics card, this results in no noise being generated from the card.

In conclusion, with this graphics card, ASRock offers an alternative to those that want an ASRock graphics card with RGB integration. Of course, if you already have a Phantom Gaming RX 590, there is no reason to buy this one, as there are no visible performance changes. However, if you are in the market for a RX 590 and want some RGB elements, then ASRock has you covered with this model.

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