KFA2 GeForce GTX 1080 EXOC review and test of graphics card

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

KFA2 GeForce GTX 1080 EXOC is built on the original circuit Board with a redesigned and additional functionality, equipped with an alternative cooling system with lighting and costs less than other monitored by PWM version of the GeForce GTX 1080.

The advantages of new items include factory overclocking, Wycherley appearance and advanced package.On paper it sounds good, but how are things really? Let’s try to figure it out.

Review KFA2 GeForce GTX 1080 EXOC

Full name: KFA2 GeForce GTX 1080 EXOC, manufacturer code: 80NSJ6DHL4EK.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

KFA2 GeForce GTX 1080 EXOC: Packing and delivery

Model KFA2 comes in the package is medium size as the color scheme the designers chose a rare combination of black and blue, which emphasizes the company’s green stripes Nvidia. The obverse shows the image of an unknown character, resembling a clown from the movie “It”.

Among other information, you specify model name and series EXOC – Extreme Overclocked, supported interfaces, the amount of video memory 8 GB standard GDDR5X and having the extra power under the scheme “6+8”, that distinguishes the new from the reference model.

The reverse side has a scant description, a separate table with the features of the graphics card and the supplied list. Well, minimalism even color packing: it is unlikely that many users dedicate a lot of time on her reading.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

Hidden inside the black box of heavy paper, the surface is pleasant to the touch, if anyone would care. No markings and embossed logos. A bit like the black box from the “Field of dreams”.

KFA2 GeForce GTX 1080 EXOC placed in a Central section of foamed material. In addition to keeping the graphics card put in antistatic bag.

Along with it come a CD with drivers, user manual and extended documentation. For extra power there are two adapters for the power supply: “2 x Molex 4 pin –> 6 pin and 2 x Molex 4 pin –> 8 pin”.

KFA2 GeForce GTX 1080 EXOC: Appearance and dimensions

KFA2 GeForce GTX 1080 does not EXOC stands out bright against the background of competing solutions and is the antithesis of the model from the line “Hall of Fame” with white design. Dimensions of new items is 282 x 128 x 40 mm, which slightly exceeds the size of the reference version of the Nvidia.

The graphics card is equipped with a metal casing of the cooling system with multiple notches and kinks in the housing. In this case, the cooler uses two fans with a diameter of 100 mm, the rotor of which a sticker is engraved with the company KFA2. They received a red unregulated lights, which looks ambiguous.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

The reverse side is covered “backplate”, which received a similar design. The developers have tried to make a huge number of openings for hot air outlet.

In addition, the base plate is hidden a little surprise in the form of pads interesting shapes, which is invisible even upon close examination through the holes. Clearly it will be presented in the section “cooling System”.

The side panels of the casing got a low bar, which increased the gap between them and the circuit Board.Open access to the radiator of the power subsystem and the voltage measurement points. Let no sign of them yet, but they are.

KFA2 GeForce GTX 1080 EXOC entirely copies the interface panel. Here we use single DVI-D, one HDMI 2.0 and three DisplayPort b 1.4. Possible multiconfiguration of multiple monitors.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

The following resolutions are supported:

Digital – up to 7680 x 4320 @ 60Hz.

Supplementary feeding is implemented with the help of one six – and one eight-pin connectors. For graphics cards with is stated at around 180 W TDP is excessive reinsurance. Perhaps the secret lies in the unsolved characteristics of the KFA2 EXOC GeForce GTX 1080? The truth will be discovered in the testing process.

For convenience, the connectors are deployed snaps up, and “backplate” done by special cutouts. For the average user, who is engaged in the operation of the installation every few years, the information is almost useless, but for people who are conducting multiple tests and changing graphics cards, scratched the fingers are not the best reward for their labors . Here is a digression.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

And, of course, any self-respecting developer is obliged to follow the modern trends, in this case we are talking about the lighting system. The inscription “GeForce GTX” received a custom display.

Enabled by default red, which glow and fans. This is one of those questionable implementations because the backlight of fans is not regulated. And if the physical wire is not to extract, they always burn the same shade.

Therefore, the bottom of the case is always lit red, and the side inscription illuminates all the possible colors of the rainbow. Looks funny, can be attributed to the features of the model.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

KFA2 GeForce GTX 1080 EXOC: Cooling system

The graphics received a massive cooling system with a sophisticated design, the benefit of the developers used the achievements of previous models.

For dismantling necessary to remove the four spring-loaded screws in the field of graphic processor. Here we note that one of the wires to short, which slightly complicates the analysis.

At the base use a copper insert in contact with all four heatpipes and GPU. The thermal interface taken grey thick paste.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

Engineers applied a competent method for use of aluminum inserts, which cools the memory chips. The plate is sealed around the perimeter.

Test with a metal ruler showed no surface irregularities or humps. There is even a good polishing to a mirror state.

For the cooling of the power transistors is provided by a separate low-profile heatsink with a thin green spacers with a thickness of 0.5 mm. Mount is made closer to the center, which provides a strong and uniform pressing.

Central teplonositel is a one-block radiator, recruited from 41 Nickel-plated aluminum plate. They are pierced by four heat pipes, two of which had a diameter of 8 mm, two 6 mm. a careful study of the construction was marked by subtle traces of solder.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

The fans are attached to the chiller using multiple clamps, which increases the difficulty of their removal. However, the metal casing can be easily dismantled.

He’d be almost unremarkable if not for the small highlight area of an inscription “GeForce GTX”.

The active cooling answer two models with the size of the impeller 95 mm. They are made by the company Ecotherm, additional information, unknown: not specified neither the model name nor the level of current consumption.

These fans are capable of operating in the range of 0-2400 rpm while remaining very quiet 1200 rpm and quiet up to 1550 rpm.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

The last element of the cooling system deserves special attention. Video card is installed on the support plate with multiple fasteners, which increases its rigidity, and the holes, increasing convection capabilities.

An amazing discovery was found and look at the pad: the developers did not bother to make a smooth cut, which opens access to fresh air.

KFA2 GeForce GTX 1080 EXOC: PCB

Model KFA2 GeForce GTX 1080 EXOC is built on the original black PCB.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

The developers have increased the width of the PCB for installation of elements of the reinforced power subsystem in a row, as well as provide additional functionality.

The power subsystem is built on the scheme “6+2”, where six phases allocated to the GPU and two for memory.

As the PWM controller chip is used uP9511P is widely used in the line of GeForce GTX 10×0.

The heart of a hero review is the GPU GP104-400-A1, produced on 16 nm process in the 35th week of 2016.It includes 2560 shaders, 64 ROPS and 160 texture units.

KFA2 GeForce GTX 1080 EXOC review and test of graphics card

Video card is equipped with eight gigabytes of memory, which recruited eight Micron chips production marked 6PA77 D9TXS. Clock frequency of the memory chips amounts to 1251 MHz (effective frequency – 10010 MHz).

It should be noted that on the circuit Board provided by the test point voltages that will be useful to enthusiasts with extreme overclocking and prespani connector to switch the second BIOS.

Perhaps soon the developers will release an updated model.

KFA2 GeForce GTX 1080 EXOC: Test bench

Testing the video card KFA2 GeForce GTX 1080 EXOC took place in the following configurations:

  • Motherboard: MSI Z97 Gaming 5 (BIOS 1.11 v);
  • CPU: Intel Core i7-4770K 4000 MHz (100 x 40, 1.156 In) or 800 MHz during measurement of noise;
  • Cooling system CPU: its Archon (fan altogether, the TY-140, 140mm, 500 rpm);
  • Thermal interface: Gelid GC-Extreme;
  • RAM: Kingston PC3-17000 (DDR3-2133, 10-11-11-27, 2 x 4GB, dual channel mode);
  • Drive SSD: SanDisk X110 256 GB;
  • Power supply: ETG Premium 1200W, 1200 Watt;
  • Case: Cooler Master HAF 922;
  • Monitor: BenQ GW2460HM, 1920 x 1080 (calibrated).

Software

  • Operating system: Windows 7 x64 SP1 Ultimate;
  • Video card driver: Nvidia ForceWare 375.70;
  • Utility:
  • GPU-Z v. 1.12.0;
  • Heaven Benchmark 4.0;
  • MSI Afterburner v4.3.0;
  • MSI Kombustor 3.5.2.1.

Tools and testing methodology

For overclocking graphics cards, as well as monitoring temperatures and fan speed were used proprietary utility MSI Afterburner v4.3.0.

Check the stability of the accelerators in the process of dispersal was carried out by the utility 3.5.2.1 MSI Kombustor (GPU Burn-in, 1920 x 1080). The received frequency was further tested by the runs test Heaven Benchmark 4.0 c v extreme levels of tessellation and GPU tests from 3DMark 2013 packages.

To check the temperature of GPU in conditions close to daily, I used Heaven BenchMark v4.0 (quality: ultra, tessellation: extreme, AA8x, 1920 x 1080) and 3DMark 2013 Fire Strike.

The noise level was measured using a digital sound level meter TM-102 with a measurement error no more than 0.5 dBA. The measurements were carried out with a distance of 0.3 m. the Level of background noise in the room – no more than 28 dBA. All system fans including installed in the power supply was turned off.On the charts of the conventional low noise for the system is defined at the level of 30.5 dBA, the conventional comfort – 37 dBA. The temperature of the air in the room was 25 degrees Celsius.

Additionally starred readings of power consumption using the power meter Robiton PM-2 and the temperature of the PCB infrared thermometer Fluke 59 MAX.

Standard frequency and overclocking

Despite the loud name “Extreme Overclocked”, model KFA2 GeForce GTX 1080 EXOC got a fairly modest factory overclocking, which looks quite small plus. The core frequency was increased only 51 MHz – 1607 MHz on the core before 1658 MHz, in Boost mode up to 1797 MHz at a voltage of 1.063 V.

In idle mode the fans stop and the key value for the start is around 64°C. were obtained the following results:

41°C and 0 rpm when working with MS Office documents;

46°C and 0 rpm when watching videos and surfing the Internet.

Start fans occur abruptly, but without sharp howls.

In games and benchmarks is better than KFA2 GeForce GTX 1080 EXOC proved to be not as impressive as I would like, but all in good time.

For example Heaven Benchmark 4.0 is clearly noticeable that the cooling system shows the average by the end of the test, the GPU temperature reached 78°C, but at low levels of noise and 1345 rpm, the VRM area is 87°C. Definitely, the developers chose acoustic comfort, while maintaining a reserve of power.

On turn fifteen runs of 3DMark Fire Strike “test of stability” which, as shown, has proved to be an excellent load for graphics accelerators.

So, with the possibilities is better than KFA2 GeForce GTX 1080 EXOC in normal mode all clear. And what you can expect during manual setting of the parameters?

At the request of the users manual overclocking was performed in two modes – with an average noise level that allows you to use the card in daily life, and when the rotational speed of the impellers 100% in order to unleash the full potential of the model KFA2.

After fixing the rpm at 70% (1670 rpm) were able to raise core clock and memory at 100 MHz and 125 MHz, respectively, to marks 1758 MHz and 1376 MHz. Thanks to the technology of GPU Boost 3.0 in games, the GPU clock reached 1974 MHz.

At 2350 rpm or 100% and a voltage of 1.093 was obtained In 1788 1391 MHz and MHz. Only a couple of tens of megahertz at the expense of silence.

Performance in 3DMark Fire Strike results for the Graphics Score went up by 8%.

But after replacing the thermal paste to Gelid GC-Extreme and accurate Assembly of the cooling system is better than KFA2 GeForce GTX 1080 EXOC has become more flexible . For comparison: 1860 MHz, 75°C and 1176 rpm before 1848 MHz 78°C and 1345 Rev/min.

But fifteen runs in 3DMark Fire Strike “test of stability” is not affected, so additional optimizations may be advisable just to fix the fan speed at 67% (1600 rpm).

Capacity of the cooling system

Here is a graph of the temperature of the graphics core/system power and noise from the fan speed of the cooling system. This card is devoid of sensors in the region of the power subsystem, the readings were taken with the IR thermometer.

The results of the research capacity of the cooling system.

The cooling system is better than KFA2 GeForce GTX 1080 EXOC in automatic mode is configured well: temperatures do not reach the psychological mark of 90°C, and the noise level is low. But if there is the cooler the Golden mean, it 1550-1600 rpm.

The level of power consumption

Graph the power consumption of the whole stand depending on the frequencies of video cards and operating voltage of the GPU.

Power consumption in 2D was measured at idle (on the desktop). Testing in Heaven BenchMark 4.0 was conducted under the following settings – quality: ultra, tessellation: extreme, AA8x, 1920 x 1080 resolution; MSI Kombustor – 2xMSAA, 1920 x 1080.

What I liked about the KFA2 EXOC GeForce GTX 1080 is a possibility of lifting restrictions on energy consumption that allows without modifications of the PCB to use the graphics card for extreme overclocking, and the test point voltages are. What is not a reason for joy enthusiasts? The positioning of the new hint and redesigned the power subsystem, coupled with the additional six-pin connector.

KFA2 GeForce GTX 1080 EXOC: Conclusion

Any video card in the Arsenal of any vendor can be conditionally written in one of three categories – “cheap and cheerful”, “the best option” and “top version”. As you can guess, is better than KFA2 GeForce GTX EXOC 1080 refers to the second, which is related to cooling system: on the one hand, gunpowder in powder flasks still is, on the other – the potential is limited.

Therefore, based on conducted tests, the model is better than KFA2 GeForce GTX 1080 EXOC is the Golden middle among the other participants of our reviews GeForce GTX 1080. It provides high performance and low noise, based on a redesigned PCB. However, without remarks has not managed.

These include average temperature, which, although far from critical, but obviously above, than at opponents. Throw in ambiguously organized light, which the fans disconnected and the lights red, and the logo is orange and white, until you will set. Maybe it’s petty nitpicking, but do not notice them impossible.

However, if you add up all of the identified advantages and disadvantages, it is better than KFA2 GeForce GTX 1080 EXOC is a good option for a gaming system that is of interest changed the PCB, alternative cooling and low cost compared to other GeForce GTX 1080 the original design.

Source: kfa2

KFA2 GeForce GTX 1080 EXOC review and test of graphics card was last modified: May 12th, 2017 by Tomas Shellby