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::>Graphics cards > 2015 > 08 > ASUS STRIX-R9390-DC3OC-8GD5-GAMING

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07-08-2015


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Video card ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING) on AMD Radeon R9 390: review and testing

In summer 2015 AMD has announced flagship graphics cards AMD Radeon R9 Fury X and AMD Radeon R9 Fury, as well as performed rebranding ofwell familiar AMD Radeon R9 290X and AMD Radeon R9 290, which received a number of improvements, new names and significantly reduced price tags. So, the former AMD Radeon R9 290X will be available as an AMD Radeon R9 390X priced at $ 429 instead of $ 549, and AMD Radeon R9 290 renamed to AMD Radeon R9 390 and is available for $ 329 instead of $ 399.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Since this review we learn the video card ASUS STRIX R9 390 ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING), a modified version of AMD Radeon R9 390, then talk about the performance characteristics of high-end model will be postponed for another time, but for now we will focus on performance of less cheaper solution.

In comparison with the AMD Radeon R9 290 novelty was renamed AMD Grenada PRO, but in fact the familiar graphics core AMD Hawaii PRO, which includes the 2560 stream processors, 160 texture units and 64 blocks of rasterization. As for the video memory subsystem, its capacity was increased from 4 to 8 GB, and effective operating frequency increased from 5000 to 6000 MHz.

 

AMD

Radeon R9 290X

AMD

Radeon R9 290

AMD

Radeon R9 390

Code name

Hawaii XT

Hawaii PRO

Grenada PRO 

Quantity of data-flow processors

2816

2560

2560

Texture units

176

160

160

ROP

64

64

64

Graphic processor frequency, MHz

1000

947

1000

Video memory effective frequency, MHz

5000

5000

6000

Video memory capacity, GB

4

4

8

Video memory interface, bit

512

512

512

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

After looking at the above comparison, it becomes clear that the GPU AMD Grenada PRO is a direct successor of AMD Hawaii PRO and is based on the same microarchitecture (AMD GCN 1.1), but according to the AMD, the new core has been significantly modified. Thus, the architecture of the subsystem power management was modified And thanks to the optimization of the production process GPU operating frequency was increased (from 947 to 1000 MHz) with a slight increase in the level of TDP. However, under a similar load and higher performance, power consumption of the new chip must be lower than its predecessor. Significant improvements of video memory should have a positive impact on productivity in the mode of 4K Ultra HD, which we will examine in the relevant section.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

And now we offer go to a more detailed review of the video card ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING).

Model

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Graphics core

AMD Radeon R9 390 (Grenada PRO)

Quantity of shader pipelines

2560

Supported API and technologies

DirectX 12, OpenGL 4.5, AMD Mantle, AMD Eyefinity, AMD App Acceleration, AMD HD3D, AMD CrossFireX, AMD PowerPlay, AMD PowerTune, AMD ZeroCore, AMD TrueAudio, AMD Virtual Super Resolution, AMD Frame Rate Target Control, Vulcan, AMD FreeSync, OpenCL 2.0, AMD LiquidVR

Graphic core frequency, MHz

«OC»

1070

«Gaming»

1050

«Silent»

1030

Memory frequency (effective), MHz

1500 (6000)

Memory capacity, GB

8

Memory type

GDDR5

Memory bus, bit

512

Memory carrying capacity, GB/s

384

Bus

PCI Express 3.0 x16

Max resolution

4096 x 2160

Screening interfaces

1 х DVI-D

1 х HDMI

3 х DisplayPort

Support for HDCP and HD-video decoding

Yes

PSU minimal capacity, W

750

Dimensions from the official site (measured in our lab), mm

300 x 137 x 40 (314 х 150)

Drivers

Available drivers ASUS or  GPU

Producer website

ASUS

Since we have almost completely rebalanced modification of AMD Radeon R9 390, we cannot talk about any correspondence to reference model. We can only directly comparable operating frequencies. In this case, the graphics core of graphics card ASUS STRIX-R9390-DC3OC-8GD5-GAMING in mode «OC» (where testing was carried out) can boast the presence of factory overclocking up to 1050 MHz (increase of 5% compared to recommended 1000 MHz). Video memory runs at recommended the 6000 MHz.

Package and content

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Graphics card ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING) comes in a fairly large cardboard box and is decorated with original and stylish line of the graphic printing with logo ASUS STRIX. In addition to the names of the manufacturer and model of the device, note the use of a proprietary cooling system DirectCU III including technology 0dB FAN, which provides 30% lower temperature compared to the reference cooler and radial type in passive mode at low loads.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

The reverse side of the box is traditionally reserved for the more detailed description of the advantages of new item. Also, there is a schematic diagram of the interface panel, and the mention of the features of proprietary utility GPU Tweak II with the functions of the Online Streaming and to switch between modes «Gaming», «OC» and «Silent».
As for the benefits, they include:

  • ASUS Auto Extreme with Super Alloy Power II - model ASUS STRIX-R9390-DC3OC-8GD5-GAMING is one of the world's first graphics card built in a fully automated line, which guarantees consistently high quality and ensures the rejection of aggressive chemicals in the production process. In addition, it is based on using high-quality electronic components (Super Alloy Power II), allowing further improves the reliability of the new item.
  • Backplate - the base plate substantially increases the rigidity and decreases the risk of curvature of the printed circuit board with the time of the weight of the cooling system.
  • 10 mm Mega Heatpipes – radiator of cooling system includes five copper heat pipes, two of which have a diameter of 10 mm, which provides a more efficient heat transfer from GPU.
  • STRIX LED - video card is equipped with red LED-indication that will appeal to fans of modding and owners of buildings with a transparent side panel.
  • Triple Wing-blade 0db Fans - three fans with a special shape of the impeller provide a more powerful air flow, thereby increasing the efficiency of the cooler.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

A list of system requirements for the computer is located on one side of the box. Based on the recommendations, the power supply in such a system must have a capacity at least of 750 W and provide at least 24 A on +12 V line. Also tested model requires the connection of two cables PCIe: one 8-pin and one 6-pin.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Delivery set of the graphics card ASUS STRIX-R9390-DC3OC-8GD5-GAMING containsthe standard documentation, CD with software and adapter for power.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

To display the image the next set of interfaces is provided:

  • 1 x DVI-D;
  • 1 x HDMI;
  • 3 x DisplayPort.

Design and features

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Model ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING) is performed on the original black circuit board with a standard arrangement principle. Used electronic components correspond to the branded concept Super Alloy Power II and include only high-quality components: solid and tantalum-polymer capacitors, advanced MOSFETs and ferrite core chokes. This increases the stability and reliability of the graphics and prolongs its life.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Power is realized via enhanced 8+2-phase scheme where 8 phases are responsible for the power of the graphics core and 2 are designed for video memory subsystem.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Chip ASP1300As is applied as digital PWM controller of power subsystem.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

The graphics power uses slot PCI Express x16 and two slots PCIe (8- and 6-pin), located on the side of the board. Due to the large dimensions of the cooler it is difficult to disconnect cables PCIe.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

The reverse side of the printed circuit board originally protected by a massive base plate, doesn’t have significant elements. We should also note the complete absence of connectors for bridges AMD CrossFireX, as this technology is implemented at the software level. Also do not forget that you will be able to combine a bunch of novelty with the AMD Radeon R9 290 starting from the version of the driver AMD Catalyst 15.7 WHQL.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

The base of ASUS STRIX-R9390-DC3OC-8GD5-GAMING is a graphics chip AMD Grenada PRO, which is determined by the utility GPU-Z 0.8.4 as the AMD Hawaii. It is produced by the norms of 28-nm manufacturing process and consists of 2560 unified shader pipelines, 64 ROP units and 160 texture units. The GPU operating frequency was increased to 1050 MHz with respect to the recommended 1000 MHz.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Memory models ASUS STRIX-R9390-DC3OC-8GD5-GAMING (total 8GB) is realized using 16 chips SK hynix H5GC4H24AJR-T2C with capacity of 4 GB each, which run on the recommended effective frequency 6000 MHz. Communication between the graphics processor and memory is realized through a 512-bit bus, which is capable of flowing 384 GB of information per second.

Cooling system

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

The video card including installed cooling system ASUS DirectCU III occupies two expansion slots and has a total length of 300 mm according to the official website of the (314 mm as measured in our lab).

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

The cooler consists of a fairly massive radiator, which uses 47 longitudinally spaced aluminum plates, and three 88-mm axial fans with an improved form of blades mounted on a plastic casing.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

The fans are produced by company Everflow and are labeled as «T129215SU». Rated voltage of operation is 12, and the current 0.5 A, which gives the final output of 6 W.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

In order to provide uniform distribution of heat over the whole area of the radiator there are five copper heat pipes of different diameter, two 10 mm and two 8 mm and one 6 mm. Fins and heat pipes are covered with a layer of nickel, which is designed to reduce the drop in the efficiency of cooling system during the operation, due to the oxidation of metals. The cooler ASUS DirectCU uses the scheme of direct contact heat pipes to the surface of the GPU through a small layer of thermal paste to accelerate removal of excess heat.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

To improve the efficiency of heat exchange pipes are soldered to the ribs of aluminum and copper heat sink base.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Also note that the primary cooling system is directly in contact with the power supply subsystem components using thermal interface. But memory chips don’t have any additional cooling.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

In case of automatic speed control of the fan blades, at maximum load, the graphics core is heated to 90°C, and cooler works while 55% of its maximum capacity. Noise while subjectively was below average and was comfortable for everyday use.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

Under the maximum speed fan blades GPU temperature dropped to 80°C. In this case the noise exceeded the average level and became uncomfortable for continuous operation near the PC.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)

In case of load absence the operating frequencies of the graphics core and memory are automatically reduced, allowing to reduce power consumption and heat. In this mode the GPU temperature did not exceed 56°C because the fans stopped to rotate and cooling system operates in a completely passive mode. The above-mentioned technology 0dB FAN is activated. It provides silent operation of video at low loads.

ASUS STRIX R9 390 (STRIX-R9390-DC3OC-8GD5-GAMING)


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