In light of the release of graphic accelerators GeForce GTX 1060, 1070 GTX and GTX 1080 prices presented in the retail model of past generations are reduced considerably, allowing some users the ability to update your system unit. This is a great chance to buy-to-date graphics card, which is capable to cope with the latest game production and provide a comfortable level of performance.
Gigabyte company behind other manufacturers released their vision of the standard version GeForce GTX 970 with a radial fan. As planned by the engineers, Gigabyte GeForce GTX 970 Twin Turbo should be a competitor to the ASUS GeForce GTX 970 Turbo OC and Palit GeForce GTX 970, offering good value for money.
Some readers might argue that point in the review of this “news” published a year ago, there is little, and in some ways they are right. But here it is worth remembering that with the release of a new generation of graphics solutions history of previous graphics card does not end, and its relevance, they will keep for a long time. In addition, the review of the hero has an interesting feature – it is one of the most affordable on the version GeForce GTX 970 the market, making it an interesting option for purchase.
Full name: Gigabyte GeForce GTX 970 Twin Turbo, the manufacturer code: GV-N970TTOC-4GD.
Gigabyte GeForce GTX 970 Twin Turbo comes in a small box with a dark printing and a standard for the manufacturer of coloring. Developers emphasize our attention to the factory overclock and a new Twin Turbo cooling system. Traditionally, in the lower right corner of the package is a list of technologies.
What I always like in the case of the Gigabyte models – this is how the company presents the information here with the full order. We demonstrate CO without a casing, which allows us to consider the heat sink and the heat pipes, which are three of them, and also suggests the possibility of air intake on both ends. According to the manufacturer, it provides a 29% better efficiency and a 24% greater air flow, especially when using cards in SLI system.
Among other things, it contains a proprietary high quality electronic components, which increases the service life and reliability of the device, and a list of recommended requirements, which include the power supply capacity of at least 500 W with one Eight-connector (which is so lacking Radeon RX 480).
Model Gigabyte GeForce GTX 970 Twin Turbo is securely packed in a soft material and package Antistatic.
But the tendency to rather poor sales package is saved: we are waiting for a CD with drivers and user manual. It is unfortunate that many companies have gone on this way.
Video card Gigabyte GeForce GTX 970 Twin Turbo received a stylish design, which thanks to the cooling system resembles a standard version. However, in this case, the changes have affected not only the housing, and this is important.
Developers have processed many elements, including the printed circuit board and heat sink, which affected the work of the graphics card and temperature indicators.
As previously discussed the Palit and ASUS model, the novelty is based on the use of radial fans, the main feature of which is the air run through the entire PCB and CO emissions and outside the case. The latter can not boast of other coolers.
Volume geometrical protrusions and two patches of blue colors make the appearance of Gigabyte GeForce GTX 970 Twin Turbo more attractive. However, the reference video card also looks good and we have a choice.
On the reverse side, we note a short circuit board that provides the advantages and disadvantages, and protruding cooling shroud with the cutouts for the fan. This solution allows a more relaxed stress loads to transfer two video cards located in adjacent slots.
Rear panel employs five video outputs:
It supports the following resolutions:
Extra power is implemented by means of one Eight-connector, which does not interfere with the high acceleration. The TDP level graphics card is 140 watts.
As regards the dimensions of the model, they are fairly and medium: length – 265 mm Width – 118 mm. In the body it overlaps two expansion slots.
So, following the results of the study of visual impression of the Gigabyte GeForce GTX 970 Twin Turbo develops favorably.
Obviously, when you create a video, the developers were tasked with combining the basic principles of the standard cooling system with its previous operating time.
Now we go to the detailed study of the design features. To begin dismantle the cooling system by loosening the six spring-loaded screws in the GPU and the power subsystem. It is worth noting that due to the large number of thermal interface separate cooler from the PCB was slightly difficult.
wide basis is evident, which is in contact with four memory chips. The contact with the crystal is due to direct contact with the heat pipes.
The cooler is a single-section radiator, the form of which is very similar to the reference design models with the only difference that his ribs are permeated copper pipes. the latter diameter is 8 mm.
Fixing to the housing effected by means of four small screws on the perimeter, and for the repayment of vibration used rubber inserts.
Users leaving the possibility to get to the site with a radial fan with a diameter of 73 mm, height – 22 mm.
Before us is a model of production Power Logic, modification PLB07525B12H, characteristics of 12 and 1.2 A. The rotational speed of 800-3700 rev / min.
For cooling the VRM area meets the extended part of the radiator with soldered plate with a gray thermal pads. The clip is good, here comes one of the heat pipes.
Before us is a printed circuit board, which went from hero to review the model Gigabyte GeForce GTX 970 Mini with all the consequences. Its dimensions are comparable with the motherboard form factor mini-ITX, therefore, applied tight mounting external components, especially in the back.
Element base corresponds to the concept of Ultra Durable VGA, she recruited exclusively from high-quality components: Japanese solid capacitors, ferrite core chokes, and field-effect transistors.
The power system is made according to the formula “4 + 1”, where four phases assigned to the graphics processor, and one – on the video memory.
It is implemented on a digital PWM controller NCP5392P manufactured by ON Semiconductor.
At the heart of the review of the hero became a GPU GM204, produced on 28 nm process technology in July 2015. It includes 1664 shaders, 56 ROP units and 104 texture units.
The card is equipped with four gigabytes of graphics memory, which scored eight chips W4032BABG Elpida production. Their clock frequency is 1754 MHz (effective frequency – 7012 MHz).
Video card Gigabyte GeForce GTX 970 Twin Turbo is equipped with a small factory overclocking – core frequency increased from 1051 MHz to 1076 MHz (in Boost mode – from 1178 MHz to 1216 MHz) at a voltage of 1.2 V, the video memory operates at 1753 MHz reference.
In the no-load frequency drop to 135/162 MHz, the GPU temperature is 40 ° C, the fan runs at a minimum speed of rotation of the impeller 800 rev / min, creating a low noise level.
With the change of a number of internal features of the utility GPU-Z ASIC tab is moved to the setting. This figure is 66.3%.
Let us study more BIOS program by using Maxwell II BIOS. It may be noted two factors – in those sewn idle most 800 rev / min, more likely they can be slightly lower in the load – 1650 rev / min.
According to my subjective impressions, which is lower than its competitors, which leads, firstly, to low noise, and secondly, to high heat. Hopefully, the developers found the best balance.
Game loads recreate several runs Benchmark Heaven Benchmark 4.0 with maximum graphics settings. With increasing temperature slowly algorithms reduce core voltage and frequency from 1253 MHz and 1.2 V up to 1178 MHz and 1.137, respectively.
GPU temperature reaches 80 ° C and kept at this level for a long time when the impeller rotational speed 1650 rev / min, which is lower than the reference version with its 83 ° C and 2100 rev / min. Noise really acceptable, below average.
For acceleration without increasing the voltage rises to Power Limit (118%) of the maximum, and the fan speed is increased to 3600 rev / min. Sacrificing comfort, it is possible to achieve increase core frequencies up to 1326 MHz (Boost – up to 1466 MHz), for applications up to 1477 MHz, and memory – 2200 MHz.
It is worth noting that during acceleration of video reached a certain maximum, and when compared with other models and does record.
CoreVoltage slider allows to set only 37 mV, which is very little, even OC Guru II utility does not allow more.
Replacing the thermal paste on the thermal interface Gelid GC-Extreme has practically no effect on the temperature of the GPU, while maintaining its temperature at the same 80 ° C.
The following is a graph of the temperature of the GPU / power system and the noise from the fan speed cooling. This card is devoid of sensors in the supply voltage, so the results were part of the power obtained by the pyrometer.
Like the model Gigabyte GeForce GTX 970 Mini, review hero scored VRM temperature zone. In principle, applied transistors are designed for such indicators, but not all users are able to deal with it, especially when the opponents it is below 105 ° C. Personally, for myself, I determined the level of 90 ° C, although it datasheet, however, can reach without any harm to 125 ° C, but the resource is reduced.
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.
Model Gigabyte GeForce GTX 970 Twin Turbo stars from the sky is not enough, however, to cope with its task. Compared to its competitors, it can offer a democratic price tag and all the advantages of the reference version, including the release of hot air from the system unit. In addition, developers cooling system configured so that the priority was not balance, and low noise. As a person who loves to configure all by itself, I note that the card runs really quietly, and heat is easily eliminated by setting a speed at 2000 rev / min.
In the end, in front of us “original” version of the GeForce GTX 970 with a radial fan, which in some ways even surpasses other opponents. But without comment did not pass. You can find fault and to an appreciable heat VRM zone, and to a modest factory overclock and a meager package. On the other scale low cost and comfortable in comparison with the reference model noise. And as features of note emissions cooling hot air outside the computer housing, which in some cases is significant advantage.