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GBT G1 Gaming GTX 1080 OC 29

Gigabyte G1 Gaming GTX 1080 Graphic Card Review

  1. Introduction, Packaging, Specification and Closer Look
  2. Initial Impressions and comparison with FE
  3. Utility and Overclocking Impressions
  4. Test Bench and Testing Methodology
  5. Futuremark Benchmark
  6. OpenGL Benchmarks
  7. Middle Earth: Shadow of Mordor
  8. Rise of the Tomb Raider
  9. Hitman
  10. DOOM
  11. GPU Computation Benchmark
  12. Folding at Home and LuxMark OpenCL Benchmark
  13. Overclocking Performance Comparison
  14. Conclusion
  15. Online Purchase Links
  16. View All

Disclosure: This unit is sourced from Gigabyte


The previously reviewed Gigabyte cards G1 Gaming GTX 980 and 980 Ti made a good impression the same way Zotac did. Both cards used an effective cooling system. At the time, Gigabyte maintained its card within the two-slot form factor and also used an all-copper plate for the core and VRAMs. The Gigabyte G1 Gaming GTX 1080 uses the brand new GP104 Pascal architecture with the custom cooling and PCB design, along with factory overclock profiles. As you will expect, all of Nvidia AIC partners have okay-to-good-to-best designed cards.


Chipset GeForce GTX 1080
Core Clock
  • Boost: 1860 MHz / Base: 1721 MHz in OC mode
  • Boost: 1835 MHz / Base: 1695 MHz in Gaming mode
Memory Clock 10010 MHz
Process Technology 16 nm
Memory Size 8 GB
Memory Bus 256 bit
Card Bus PCI-E 3.0 x 16
Memory Type GDDR5X
DirectX 12
OpenGL 4.5
Digital max resolution 7680×4320 (requires 2*DP1.3 connectors)
Multi-view 4
  • Dual-link DVI-D *1
  • HDMI-2.0b*1 (Max Resolution: 4096×2160 @60 Hz)
  • Display Port-1.4 *3 (Max Resolution: 7680×4320 @60 Hz)
Power requirement 500W
Power Connectors 8 pin*1
Card size H=41 L=280 W=114 mm

Keep in mind that Gigabyte and MSI mention its boost clock first and then its base clock.

Gigabyte G1 Gaming GTX 1080 has two profiles- the by-default enabled gaming profile that provides an additional 86MHz and OC profile with 115MHz bump over the reference’s base clock. The card is a dual slot card with triple fan cooling setup. For those who are interested, you can read up on the Nvidia GeForce GTX 1080 Founders Edition review.


Gigabyte’s G1 Gaming packaging is pretty standard which advertises three of its selling points- the Windforce cooling, GPU Gauntlet and the RGB spectrum colour lighting. While Gigabyte did point out its output options, they haven’t mentioned its clock speed on the box. But there is a QR code so people who are making the last minute no research purchase can get their hands on basic information. G1 Gaming’s accessory box is big, but it comes with a manual and a disc.

No case badge. no added accessories. This accessory box is a troll.

Profile presets

The difference is that Zotac typically sets a single out-of-the-box factory overclock. Gigabyte and MSI include two profiles- gaming and OC mode. The only way to select the product is to use its proprietary software. During the Asus/MSI clock gate controversy, people asked why couldn’t companies have the highest overclocked profiles enabled by default for everyone. It’s a valid question as switching between the profiles knowing that OC profiles provide a higher factory clocks seems redundant.

When I asked if using the OC profile all the time would affect the longevity of the core. They replied:

No, this was not our consideration when we offered 2 modes. It’s purely to offer a good user experience.

The following is the difference between the overclocked profiles:

Reference Zotac AMP! EXT. Gigabyte G1 (Gaming) Gigabyte G1 (OC)
Base 1607 1696 (+89) 1722 (+115)
Boost 1734 1835 (+101) 1860 (+126)

Gigabyte should consider a single factory overclocked profile with the maximum possible setting. The VGA maker brags about its GPU gauntlet which means they use the best ASIC quality chip for this series. That’s all the more reason they can have the highest factory overclock out-of-the-box.

Let’s check out the performance this card offers, and its cooling + manual overclocking potential!

G1 Gaming GTX 1080 Design

The first impression- this card is incredibly light. It makes an impression that it is lighter than the Founders Edition, its GTX 980 and GTX 980Ti G1 Gaming cards. Gigabyte reduced the weight by having copper base reserved only for its GPU core and reducing from six to three 6mm copper heat pipes. The only LED on this graphic card is the logo and its fan stop indicator. The GPU shroud is a bit longer than its PCB, which shows three copper heat pipes.

The Gigabyte G1 Gaming GTX 1080 takes additional power from an 8 pin PCIe connector. The card also has an LED indicator which lights up solid if the PCIe power cable is disconnected and blinks if there is any abnormal power flow. If its all good, it will be off.

The GPU shroud is plastic while its backplate is metal. The only design is the orange highlights on its shroud. The design doesn’t really stand out like MSI and Zotac’s variant. Some people may light the limited LED presence with a down-to-Earth design. Some may not. This is more of a preference.

Gigabyte G1 Gaming GTX 1080 uses the same outputs like its Founders Edition. But the key difference is that all of its DisplayPorts are brought in together while its HDMI port is kept towards the end.

Comparison with the Founders Edition

The width of the graphic cards is the same, with a difference in its length. Obviously, the cooling system is the highlight of the G1 Gaming.

I did not take the images of the inner area since I ended up fixing the thermal pads on the chokes. While its VRAMs used thicker thermal pads, the chokes used very thin pads, enough that it was torn and misaligned from the inside at the time it was removed. While the previous G1 Gaming units had contact between the VRMs and the main heatsink’s surface, it was all copper. Not in this case. You’ll need to remove all the seven screws over its back plate.

Gigabyte G1 Gaming GTX 1080’s product page included Xtreme Gaming’s OC utility. Apart from its skin, there shouldn’t be any differences in its function. The utility can be used for manual overclocking, saving OC and fan profiles & customizing the lighting options.

Tab options

There are three clock profiles: ‘Eco’ ,’Gaming’ and ‘OC’. As said earlier, Gaming profile is enabled by default. The Eco mode reduces its base clock down to 1607MHz. While its base clock is the same as its Founders Edition, the eco mode’s boost clock is up to 1746MHz. Also, there are three fan profiles with manual setting options and LED settings with six presets.

audio flashing

This is the first time I’ve seen ‘audio flashing’ LED light effect on a graphic card. But to be fair Gigabyte motherboards did have this function.

With other GPU overclocking utilities, they have a separate function for “apply” and saving/loading the profiles. But the Xtreme Gaming utility overwrites the currently selected profile once a new manual setting is applied. This is not a good idea as you one may lose the previous stable overclocking setting while experimenting with more overclocks. The only workaround is to load another profile and then overclock further. Gigabyte should have the manual profile save button and not let the utility overwrite the new and untested overclock settings.

ASIC Quality


This review unit reflects 92.8% ASIC quality, the highest I’ve seen till date. Higher the ASIC quality, lower its power consumption and better overclocking potential. It’s OC profile provides 115MHz over its FE spec’s base clock.

Overclock attempts

The first attempt was a +135MHz increase and 19% increase in its GPU voltage. The only time this setting crashed was with Fire Strike Ultra’s GPU Test 2 run. It did generate GPU Test 2 score. I’ve reduced it down to +120MHz with +35% GPU voltage and it worked.

Reference Gigabyte G1 (Gaming) Gigabyte G1 (OC) Gigabyte G1 (Manual OC)
Base 1607 1696 (+89) 1722 (+115) 1816 (+209)
Boost 1734 1835 (+101) 1860 (+126) 1955 (+221)

Compared to Founders’ Edition base clock, that’s a 209MHz. This chip allowed 94MHz bump in base clock over the OC profile’s base clock. That’s pretty good seeing that its OC profile already provides a +115MHz increase compared to FE’s base clock. The manual overclock’s boost goes up to 1955 MHz.

With Fire Strike Ultra running in its background and fan manually set on auto:


Within 50% fan speed, the overclocked card manages to stay cool at 68 degrees Celsius. Even with the reduced material and heatpipe count, the cooling system is doing a good job with the additional 94 MHz increase over the overclock preset profile.

With the same settings, the following performance boost is achieved.

Test Setup

Hardware BBQ gets very minimum support from hardware manufacturers since we have a no-strings-attached policy and ended up blacklisting even tier 1 brands for improper misconduct. But thanks to a handful of companies who value the importance and benefits of providing components for the test bench, we do what we’re good at with the resources at hand. I would like to thank:

  • Gigabyte India for providing Gigabyte Z97X-Gaming GT Rev 1.0 motherboard
  • WD India for providing 4x WD Red 3TB NAS drives
  • Coolermaster India for providing Coolermaster GX450 RS-450-ACAA-D3 Power Supply
Test Setup for: Gigabyte G1 Gaming GTX 1080
CPU+ CPU Cooler Intel i7 4790K + Noctua NH-U12S
Motherboard Gigabyte Z97X-Gaming GT Motherboard
Memory Kingston 8GB 1600MHz DDRIII
Primary OS drive SanDisk Extreme 240GB SSD + WD Red 3TB WD30EFRX
Power Supply Corsair TX750
Chassis Lian Li A70F Full Tower PC Case

Driver Version: 368.39 WHQL

The fan speed is kept at auto for stock benchmark and on 100% when overclocked. For the Gigabyte G1 Gaming GTX 1080, gaming profile is used for testing while its gaming, OC and manual overclocks are compared under OC Performance section.

Futuremark Benchmarks

  • 3DMark: Sky Diver, Fire Strike, Fire Strike Extreme and Fire Strike Presets
3DMark includes everything you need to benchmark your PC and mobile devices in one app. Whether you’re gaming on a smartphone, tablet, notebook, or a desktop gaming PC, 3DMark includes a benchmark designed specifically for your hardware.

With more tests coming soon, we’ve given 3DMark a new interface that’s faster, more flexible and easier to use. What’s more, you can now get faster downloads and save storage space by choosing to install only the tests you need.

  • 3DMark 11: Xtreme Preset
3DMark 11 is a DirectX 11 video card benchmark test for measuring your PC’s gaming performance. 3DMark 11 makes extensive use of DirectX 11 features including tessellation, compute shaders and multi-threading. Trusted by gamers worldwide to give accurate and unbiased results, 3DMark 11 consistently and reliably tests your PC’s DirectX 11 performance under game-like loads.

OpenGL Benchmarks: Cinebench 11.5 and Cinebench R15

CINEBENCH is a real-world cross platform test suite that evaluates your computer’s performance capabilities. CINEBENCH is based on MAXON’s award-winning animation software Cinema 4D, which is used extensively by studios and production houses worldwide for 3D content creation. MAXON software has been used in blockbuster movies such as Iron Man 3, Oblivion, Life of Pi or Prometheus and many more.

Game Benchmarks

  • Middle Earth: Shadow of Mordor DX 11 with 3 presets
Fight through Mordor and uncover the truth of the spirit that compels you, discover the origins of the Rings of Power, build your legend and ultimately confront the evil of Sauron in this new chronicle of Middle-earth.
  • Ashes of the Singularity DX 11 and DX 12 with 3 presets each

Planet by planet, a war is raging across the galaxy. The technological singularity has given humanity the power to expand further than they ever have before. Now, they compete with each other and their sentient artificial intelligence adversaries for control of newfound worlds.

  • Rise of the Tomb Raider DX 11 and  DX 12 with  3 presets each
Featuring epic, high-octane action moments set in the most beautiful hostile environments on earth, Rise of the Tomb Raider delivers a cinematic survival action adventure where you will join Lara Croft on her first tomb raiding expedition as she seeks to discover the secret of immortality.
  • Hitman (2016) DX 11 and DX 12 with 3 presets each
As Agent 47, you perform contract hits on high-profile targets in exotic locations around the world. With the Full Experience, you will have access to all episodes as they release periodically throughout 2016, starting April 2016.
  • DOOM OpenGL 4.5 with 3 presets each
DOOM returns as a brutally fun and challenging modern-day shooter experience. Relentless demons, impossibly destructive guns, and fast, fluid movement provide the foundation for intense, first-person combat.

Buy game licenses for cheap!

For measuring GPU computation, I’ve included Compubench benchmark workloads.

  • Face Detection and TV-L1 Optical Flow Test
  • Ocean Surface Simulation Test
  • Particle Simulation-64K Test
  • Computation Benchmark- Graphics and Video Composition
  • Bitcoin Mining

OpenCL Benchmarks

  • Folding at Home Benchmark
  • LuxMark OpenCL Benchmark

3DMark 11 Benchmark

Extreme Preset

3DMark Benchmarks

Sky Diver

Fire Strike

Fire Strike Extreme

Fire Strike Ultra

Cinebench 11.5

Cinebench 11.5 GBT G1 Gaming GTX 1080 OC

Cinebench R15

Cinebench R15 GBT G1 Gaming GTX 1080 OC

Shadow of Modor Ultra GBT G1 Gaming GTX 1080 OC

Presets List

Medium High Very High
Texture Quality Medium High Very High
Anisotropic Filter 2x 4x 16x
Shadow Quality Medium High High
Sun Soft Shadows Off On High
Depth of Field On On Very High
Level of Detail High High Very High
Dynamic Foliage Medium Medium High
Ambient Occlusion On On HBAO+
PureHair On On On
Specular Reflection Quality Normal Normal Normal
Vignette Blur Yes Yes Yes
Motion Blur Yes Yes Yes
Bloom Yes Yes Yes
Tessellation Yes Yes
Screen Space Reflections Yes Yes Yes
Lens Flares Yes Yes Yes
Screen Effects Yes Yes Yes
Film Grain

DX 11 Test

DX 12 Test

Presets List

Preset 1 Preset 2 Preset 3
Super Sampling 1 1.5 2
Level of Detail Low Medium Ultra
Anti-Aliasing Off FXAA SMAA
Texture Quality Low Medium High
Texture Filter Trilinear 8x 16x
SSAO Off On On
Shadow Maps Low Medium Ultra
Shadow Resolution Low Medium High

DX 11 Test

DX 12 Test

Presets List

Medium High Ultra
Lights Quality Medium High Ultra
Shadows Quality Medium High Ultra
Player Self Shadow Off On On
Directional Occlusion Quality Medium High High
Decal Quality Medium High Ultra
Decal Filtering 2x 4x 8x
Virtual Texturing Page Size Medium High Ultra
Reflections Quality Medium High Ultra
Particles Quality Medium High Ultra
Compute Shaders Off On On
Motion Blur Quality Medium High Ultra
Depth of Field Off On On
Depth of Field Antialiasing Off On On
HDR Bloom Off On On
Lens Flare Off On On
Lens Dirt Off On On
Rendering Mode Default Default Default
Sharpening Amount 2.0 2.0 2.0
Film Grain 1.0 1.0 1.0
UI Opacity 70% 70% 70%
Show Performance Metrics Off Off Off

 OpenGL Test

Bitcoin Mining

Bitcoin Mining GBT G1 Gaming GTX 1080 OC


FAHBench is the official Folding@Home GPU benchmark. It measures the compute performance of GPUs for Folding@Home. In addition, by use of a loadable DLL system, it provides vendors and skilled hackers with a method make customized plugins and test their results

The single precision implicit model most closely relates to current folding performance. Nvidia GPU will involve tests involving CUDA and OpenCL while AMD Radeon is limited to OpenCL tests.

Folding @ Home GBT G1 Gaming GTX 1080 OC


LuxMark is a OpenCL cross-platform benchmark tool. The idea for the program was conceived in 2009 by Jean-Francois ‘Jromang’ Romang. It was intended as a promotional tool for LuxRender (to quote original Jromang’s words: “LuxRender propaganda with OpenCL”). The idea was quite simple, wrap SLG inside an easy to use graphical user interface and use it as a benchmark for OpenCL.

Luxmark GBT G1 Gaming GTX 1080 OC

Reference Gigabyte G1 (Gaming) Gigabyte G1 (OC) Gigabyte G1 (Manual OC)
Base 1607 1696 (+89) 1722 (+115) 1816 (+209)
Boost 1734 1835 (+101) 1860 (+126) 1955 (+221)

3DMark Benchmark

The manual overclock gave a significant increase in performance for 3DMark benchmarks.

Game Benchmarks- DX 12/OpenGL 4.5 Highest presets

In the end…

I was concerned that this lightweight card would mean lesser cooling effectiveness. Its good to see that this isn’t the case with the G1 Gaming GTX 1080 card. The only part that I would wish Gigabyte to correct is to start having a single (and highest) factory overclock out-of-the-box cards. I also do wish that its XG utility does not override the selected profile once newer manual overclocks are selected.

The only LED function this graphic card has is its logo. Not a dealbreaker unless you are looking to match your components with a particular colour combination or they just want RGB disco in their system. The main issue is that while Gigabyte G1 Gaming GTX 1080 isn’t a bad card, but other variants including its own Xtreme Gaming lineup would overshadow this card easily.

The fans do not generate an audible sound in a closed case setup up to 75% fan speed, assuming you will require that much fan speed. Having a thin thermal pad on the chokes isn’t the good idea. If a user needs to change the thermal paste on the core in the distant future, that will tear easily and probably make it unusable.

GTX 1080 Founders Edition

India US UK
Rs. 68,300/- $834.99 £619.00

Gigabyte G1 Gaming GTX 1080

India US UK
Rs. 72,999/- $780.99 £699.95


Investing in a Gigabyte G1 Gaming GTX 1080 over its founder’s edition could be a pricey affair. This depends on which country you’re in and/or the dealer’s price gouging factor (if present).

But if you look at other company’s offerings, Zotac offers its 1771 MHz base clock AMP! Extreme card for $869.99 and 1708 base clock (OC Profile) MSI Gaming X for $829.94. Gigabyte’s OC profile’s base clock is 1721 MHz (OC preset). Gigabyte is providing a pretty good deal on this card for the moment in the US. Keeping all this in mind, this card provides a good value.

  • Effective cooling system
  • Minimum LED bling
  • GPU Gauntlet
  • Light Weight
  • Minimum LED bling
  • Thin thermal pad on the VRMs
  • XG OC Utility overwrites selected profile when clock/fan speed is increased

Gigabyte G1 Gaming GTX 1080

Gigabyte G1 Gaming GTX 1080 Graphic Card Review from hardware

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