Low-end graphics card generation Polaris – Radeon RX 460 – at the time of the announcement has acquired an aura of mystery, standing out markedly against the background of the older models. Its graphics processor has fewer stream processors, ROP units and texture units, as well as working with a smaller memory bus. In addition, it is based on GPU Polaris 11, which suggests the possible presence of Radeon RX 465, because the novelty has not yet looked interesting acquisition. But is it?
Model Radeon RX 460 is a graphics solution level “below average”, which is positioned by developers as an affordable option for online battles, perfect for competitive players. NEW provides an acceptable level of performance in Full HD in many games of this class at the middle and high graphics quality settings, which may be enough for some players. A further blow to the rival, as they say, where did not expect, was the release of the mobile version of Radeon RX 460, which is the level of performance is virtually identical to desktop and slowly prescribed in notebooks.
For all these reasons, the main desire of AMD is clear and lies on the surface: to win not only the average price segment, but also the budget. This can take place due to a huge number of players who are sacrificing a few extra the FPS, can acquire democratic graphics solution, one of which was the GeForce GTX 750 (Ti) in the recent time.
Full name: Gigabyte Radeon RX 460 Windforce, manufacturer code: GV-RX460WF2OC-2GD.
Gigabyte Graphics Card comes in a small package with a recognizable graphic arts industry manufacturer. The box contains the name of the graphics accelerator, the amount of video memory of 2 GB, the use of cooling systems Windforce and factory overclocking. In the lower left corner of the small print marked support of virtual reality, AMD Freesync and API DirectX 12.
On the reverse side there is a description of each item. We present the image cooler Windforce 2X with a simple radiator and two fans of 80 mm with a modified form of the blades.
Below there was a place to connect the video output circuit and a brief recommended requirements, which included the power supply unit is not less than 350 watts.
Among other things, we are told that the Gigabyte Radeon RX 460 Windforce built using quality components Ultra Durable VGA and is equipped with support for proprietary utility Xtreme Engine.
The box itself is made of cardboard black. Gigabyte Model placed in an antistatic bag and stored in a recess of polyethylene foam. a user guide found in the sales package.
Gigabyte Radeon RX 460 Windforce looks very neat and petite. The developers tried not to complicate the design of the model and not make it too faded. Despite the democratic value of novelty is equipped with protective caps on all connectors.
Appearance models with its black casing and orange stripes reminiscent of a new line of G1 Gaming. But the graphics card, which has become the hero of the review does not apply to it.
For such a “baby” remarkable two 80 mm fan, which protrude beyond the edge of the printed circuit board together with the radiator cooling system.
On the reverse side is clearly visible. It would be surprising to meet here “bekpleyt”, but seen a simple layout on the board.
Rear panel was simplified and equipped with only basic video outputs. Nothing extra:
It supports the following resolutions:
Novelty is modest power consumption, which according to all the specifications listed as “up to 75 watts,” so it is devoid of connectors 6 pin.
Dimensions Gigabyte Radeon RX 460 Windforce turned out not less than democratic. Its length is just 191 mm, width – 110 mm. No fantastic three expansion slots model does not overlap. Standard two.
Review Hero cooling system is simple and uncomplicated, but what else should be expected from a video card with a TDP of 75 watts lower level?
The cooler is fastened with four spring-loaded screws located on the perimeter of the graphics processor. As an interface used fluid gray thermal compound.
The cooler is designed as a simple heat sink with a plurality of ribs. At its front and rear cuts are provided to partially purge the PCB. Apparently, such a structure is sufficient to Gigabyte Radeon RX 460 Windforce.
Under the hood hides two fans 80 mm diameter impeller width slightly less than – 77 mm. They are attached directly to the plastic substrate.
This model of Power Logic, their PLD08010S12HH marking. They are able to operate in the range 0-4300 rev / min and be quiet to 1750 rev / min.
Given the fact that the reference version of the Radeon RX 460 and was not represented (except for a pair of samples at conferences), Gigabyte engineers got complete freedom.
The printed circuit board is made on a black color, the length of only 160 mm. Use high-quality electronic components, based on the concept of Ultra Durable VGA.
Power Subsystem performed remarkably enhanced by the formula of “5 + 1”, where five phases assigned to the graphics processor, and one – in the video memory, coupled it provides a large supply. As the PWM controller chip used NCP81022 production ON Semiconductor.
Gigabyte models Heart became GPU Polaris 11, produced on 14 nm process technology in the 27th week of 2016. It is an independent graphics processor, not a stripped-down version of the GPU that is installed on Radeon RX 470. It includes 896 shaders, 16 ROP units and 56 texture units.
The card is equipped with two gigabytes of graphics memory, which recruited four chips production SKhynix, H5GC4H24AJR marking.
The clock speed of memory chips is 1750 MHz (effective frequency – 7000 MHz).
Video card Gigabyte Radeon RX 460 Windforce received a modest factory overclock in Boost mode – from 1200 MHz to 1212 MHz at a voltage of 1.1 V. On the base frequency, unfortunately, there is no information. Video memory operates at 1750 MHz reference. Parameter ASIC is 55.0%.
At low load, the fans are turned off, making the model is completely silent. Even with such a simple radiator cooling system GPU temperature is always kept in the range of 31-36 ° C.
Fixation test Heaven Benchmark 4.0 perfectly demonstrates all the strengths and weaknesses Gigabyte video card hand. Average core frequency of 1188 MHz at a voltage of 1,055 V.
Interestingly behaves cooling system: first, it runs at 1300 rev / min and then gradually comes to around 1000 rev / min at peak GPU temperature under 67 ° C, only after stabilizing smooth straight fans. All this is accompanied by a low level of noise generated by the airflow passing through the fins of the cooler.
It is worth noting that the lack of power VRM heatsink, in spite of the five phases, affects not the best way. power system temperature reaches 100 ° C.
Even taking into account this fact, we could not carry out the test in the MSI Kombustor. All the above features are repeated. Fans operated at 955 rev / min, GPU temperature slowly increasing up as VRM temperature zone. And in order not to damage the card, the stress test was stopped.
At the time of writing the material WattTool program is available for version 0.5 with partial support for Radeon RX 460 (introduced in 0.6), but it allows you to keep track of the basic parameters and settings.
First of all, we note low voltage VRAM, only 0.85 V instead of 1.0 V reference that limits overclocking. This was done for the sake of low power consumption, which in practice turned out to be even less than that GeForce GTX 750.
Second, using Polaris BIOS Reader utility revealed that the Gigabyte Radeon RX 460 Windforce protection low values of TDP – just 50 watts. This suggests that the developers did their best to protect themselves from high loads on the PCI-Express slot, and future challenges.
Another significant event was the long-awaited MSI Afterburner program output with support for Polaris graphics accelerators. Although this is a beta version, but many of the settings are already available and operational: the exception is the application of some of them, the system is slightly freezes for a few seconds.
Here, for the removal of restrictions on limits overclocking core and memory frequencies help line “unofficial overclocking mode.” The following items:
Recent settings required for dynamic frequency and voltage change depending on the load or the work is always in 3D mode, although this item is activated, not all graphics cards.
In the case of the Gigabyte Radeon RX 460 Windforce it possible to expand the range of video memory frequency of 2000 MHz …
Gigabyte Radeon RX 460 Windforce was whimsical graphics, because it is strongly linked to the thermal envelope and energy consumption; and not one attempt left the selection of optimal parameters. Without overclocking the video memory when the kernel 1.1 was able to lift up to 2,150 MHz, but for the sake of balance I had to stop at 2000 MHz at 1.0 V.
After all the manipulations and raising the voltage of 54 mV on the GPU (graphics card above the reduced frequency) Gigabyte Radeon RX 460 Windforce was overclocked to 1325 MHz and 2000 MHz respectively.
The following is a graph of the temperature of the GPU / system power and noise of the cooling fans. This card is devoid of sensors in the supply voltage, so the results were part of the power obtained by the pyrometer.
The main problem Gigabyte Radeon RX 460 Windforce – the lack of a radiator of the power subsystem. However, there is good news, which consists in silent fans, which allow to raise the rotational speed of the impellers up to 1800 rev / min at a comfortable level of noise.
Schedule of all electricity consumed in the stand depending on the video card GPU working frequency and voltage.
Power consumption in 2D was measured at idle system (on the desktop). Testing in Heaven BenchMark 4.0 was carried out at the following settings – quality: ultra, tessellation: extreme, AA8x, 1920 x 1080; MSI Kombustor – 2xMSAA, 1920 x 1080 resolution.
The graphics processor 11 Polaris was not so and voracious. In my early material energy consumption is not measured, but the comparison of old PCs, the GeForce GTX 750 was taken, who took part on a par with more relevant and relatively hot GeForce GTX 950.
Having been engaged for some time the question of energy efficiency of its solutions, AMD is beginning to surprise, and video generation Polaris 10/11 proof. About versions of Radeon RX 470 and the RX 480 the Radeon will be discussed in the next article, but for now let us return to the low-end model, which has managed to surprise.
Let’s start with the fact that Radeon RX 460 in terms of performance surpassed not only the GeForce GTX 750, but its an older version of GeForce GTX 750 Ti, approaching the GeForce GTX 950 and to find its niche. In parallel, the new product has been able to surpass them because of low power consumption, which, frankly, the AMD graphics card, I did not expect.
Let’s hope that developers will be able to work out the technical process and increase capacity by issuing a worthy successor, and while Radeon RX 460 looks good step forward. The new model will be an excellent acquisition for fans to play in the evening World of Tanks or DOTA 2.
As for Gigabyte Radeon RX 460 Windforce, in her case, we note the low heat, low noise and even miserable, but factory overclocking. In addition, the model offers a three-year warranty and cost, at the time of writing, 8,900 rubles is nothing superfluous in terms of equipment. Fly in the ointment is the lack of a radiator on the power system, which leads to an increase in temperature, in spite of the increased number of phases. No fixtures and under it, so that a simple modification can be forgotten.