GPUs Graphics Reviews

At home in the air and underwater: Asus GTX 1080 Ti ROG Poseidon Platinum in test

All of this sounds simple at first, even in practice. Instead of a water block, simply place a flat heatpipe on a large heat sink and optionally let water pass through to absorb the waste heat and transfer it. Asus uses its own design for this board. The two 8-pin sockets for the external power supply are followed by two coils in the input area for smoothing the tips. Asus relies on a design of 5+2 phases, with the 5 phases for the GPU duplicated... Benchmarks in 2560 x 1440 pixels We have deliberately dispensed with Full HD (1920 x 1080p) as the card runs into the CPU limit even in the highest settings. In WQHD (2560 x 1440 pixels), on the other hand, the actual working environment and the kar... Benchmarks in 3840 x 2160 pixels The card is also significantly faster in this high resolution than a GeForce GTX 1080 Founders Edition or GeForce GTX 1080 Founders Edition. TitanX (Pascal) in Nvidia reference design. Overall, many titles are quite good in UH... Power consumption at different loads We measured the power consumption of the air-cooled map. When operated as a water-cooled card, the power consumption at full load is approx. 3-5 watts lower (fan). Compliance with the main... Overclocking The overclocking with air cooling is almost hopeless, because the card is already quite neatly overclocked from the factory and thus reaches its physical limits, especially in the closed housing. With a good water cool... Cooling system and backplate The special feature is the use of a hybrid system that can be operated both in a water cooling system and only alone with air cooling. The advantage is that the buyer is... Summary There is no egg-laying woolly milk sow, even with graphics cards. After this test, we must hold this honestly and fairly. The Asus GTX 1080 Ti ROG Poseidon Platinum has no serious flaws and does nothing ...

All of this sounds simple at first, even in practice. Instead of a water block, simply place a flat heatpipe on a large heat sink and optionally let water pass through to absorb and remove the waste heat. A relatively simple knitted water cooling system is finished, which can be used in parallel with normal air cooling and can even completely replace it.

Today's test will show that such a compromise, because it is one, can still work quite well. However, one should not expect miracles, also because of the necessary technical limitations and specifications, especially from the water cooler.

Since the actual performance of all board partner cards depends more on the actual boost clock achieved, and thus causally depends on the cooling, the power target and above all the quality of the respective chip, any test based only on benchmark bars is more of a Random snapshot of a single specimen. This is precisely why we have focused on the actual technical implementation of each model and have been able to document this very well with our equipment.

Unboxing, dimensions and connections

The map is powerful, visually striking and otherwise not a shameful wallflower, but rather a self-confident exotic. However, we will discuss the interesting cooling design separately later.

The most important features are first summarized in a table:

Overview of installation dimensions, features and connections
Installation length:
29.4 cm (slot aperture to end cover)
30.0 cm (slot aperture to harness)
Installation height:
14.5 cm (upper edge slot to top card)
3.8 cm (2.5 slot)
0.5 cm baking plate
1636 grams
Backplate: Yes, with RGB logo
Cooling: Hybrid of water or air cooling
Horizontally aligned cooling fins
2x 10 cm (9.6 cm rotor diameter)
Connections Slot blend:
2x DisplayPort 1.4
2x HDMI 2.0
1x Dual-Link DVI-I
Other shots:
2x SLI Connector
Controlled housing fan outputs
RGB output
Various measuring points
Power supply:
2x 8-pin PCI-Express

Exterior views

Now let's look at the map from the outside. Asus attaches great importance to a good first optical impression, but the entire front cover is only made of simple plastic. The only accents are the RGB effects on the top and back, as well as the visible radiator connection with the threaded connectors. To enlarge, please click on the respective picture.


The GPU-Z screenshot shows us the most important key data in advance, whereby the actual boost achieved with our model was significantly higher:

Finally, the whole thing again as a tabular comparison to the other relevant graphics card models:

Titan X
– (Pascal) Mr President, I would like to
GTX 1080 Ti FE
GTX 1080 Ti
ROG Poseidon
GTX 1080 FE
GTX 980 Ti
GP102 GP102 GP102 GP104 GM200
CUDA cores
3584 3584 3584 2560 2816
Base clock 1417 MHz 1480 MHz 1595 MHz
1607 MHz 1000 MHz
Boost clock
1531 MHz+ 1582 MHz+ 1709 MHz
1733 MHz+ 1076 MHz+
Memory Size & Type
12 GByte
11 GByte
11 GByte
8 GByte
6 GByte
The size
471 mm2 471 mm2 471 mm2 314 mm2 601 mm2
16 nm 16 nm 16 nm 16 nm 28 nm
12 billion 12 billion 12 billion 7.2 billion 8 billion
Streaming Multiprocessors (SM)
28 28 28
20 22
GFLOPS (basic clock)
10.157 10.609 11.068
8.228 5.632
Texture Units
224 224 224 160 176
Texture fill rate
317.4 GT/s 331.5 GT/s 357.3 GT/s
257.1 GT/s 214 GT/s
96 88 88
64 96
Pixel fill rate
136 GPix/s 130.24 GPix/s 140.4 GPix/s
114.2 GPix/s 116.7 GPix/s
Storage data rate
10 Gbps 11 Gbps 11 Gbps 10 Gbps 7 Gbps
Storage bus
384 bits 352 bits 352 bits 256 bits 384 bits
Memory bandwidth
480 GByte/s 484.4 GByte/s 484.4 GByte/s 320 GByte/s 336 GByte/s
L2 cache
3 MByte 2816 KByte 2816 KByte 2 MByte 3 MByte
250 watts 250 watts 275 Watt (PT)
180 watts 250 watts

Test system and measurement methods

The new test system and the methodology have already been described in great detail in the basic article "How We Test Graphics Cards" (English: "How We Test Graphics Cards") and therefore, for the sake of simplicity, we now only refer to this detailed Description. So if you want to read everything again, you are welcome to do so. However, we have improved CPU and cooling once again in order to largely exclude possible CPU bottle necks for this fast card.

If you are interested, the summary in table form quickly provides a brief overview:

Test systems and measuring rooms
Intel Core i7-6900K -4.3GHz
MSI X99S XPower Gaming Titanium
Corsair Vengeance DDR4-3200
1x 1 TByte Toshiba OCZ RD400 (M.2, System SSD)
2x 960 GByte Toshiba OCZ TR150 (Storage, Images)
Be Quiet Dark Power Pro 11, 850-watt power supply
Windows 10 Pro (all updates)
Alphacool Ice Block XPX
Alphacool Ice Age 2000 Chiller
2x Be Quiet! Silent Wings 3 PWM (Closed Case Simulation)
Thermal Grizzly Kryonaut (for cooler change)
Lian Li PC-T70 with expansion kit and modifications
Modes: Open Benchtable, Closed Case
Monitor: Eizo EV3237-BK
Power consumption:
non-contact DC measurement on the PCIe slot (Riser-Card)
non-contact DC measurement on the external PCIe power supply
Direct voltage measurement on the respective feeders and on the power supply
2x Rohde & Schwarz HMO 3054, 500 MHz multi-channel oscillograph with memory function
4x Rohde & Schwarz HZO50, current togor adapter (1 mA to 30 A, 100 KHz, DC)
4x Rohde & Schwarz HZ355, touch divider (10:1, 500 MHz)
1x Rohde & Schwarz HMC 8012, digital multimeter with storage function
Optris PI640, infrared camera
PI Connect evaluation software with profiles
NTI Audio M2211 (with calibration file)
Steinberg UR12 (with phantom power for the microphones)
Creative X7, Smaart v.7
own low-reflection measuring room, 3.5 x 1.8 x 2.2 m (LxTxH)
Axial measurements, perpendicular to the center of the sound source(s), measuring distance 50 cm
Noise in dBA (Slow) as RTA measurement
Frequency spectrum as a graph

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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