18+4 phase power supply, burn-in only 60 degrees!? ROG Strix GeForce RTX 4080 OC graphics card

The second model of the NVIDIA RTX 40 series is the RTX 4080. This time ASUS’s ROG Strix GeForce RTX 4080 OC graphics card, like most RTX 4080 self-made cards, directly uses the RTX 4090 radiator, so it still maintains a huge size, and for players, this generation of RTX 4080 can already meet the needs of 4K games. On the premise of no professional creative needs, RTX 4080 will be a more cost-effective choice than RTX 4090.

Graphics Processor: NVIDIA GeForce RTX 4080
CUDA Core: 9728
Memory: 16GB GDDR6X
Memory Interface: 256-bit
Core Clock: Boost – 2655 MHz (overclocking mode)
Memory Clock: 22.4 Gbps
PCI Express: 4.0 x16
output interface: 3 x DisplayPort 1.4a, 2 x HDMI 2.1
HDCP support: 2.3
Power supply interface: 1 x 16-pin
Recommended power supply: 850W
Dimensions: 357.6 x 149.3 x 70.1 mm

ROG Strix GeForce RTX 4080 OC unboxing

ASUS here. On the first-generation ROG Strix graphics card, the heat sink has been completely redesigned to meet the higher heat dissipation requirements of the RTX 40 series. In addition to increasing the size to 3.5 slots thick and 35 cm long, the contact part between the heat sink and the core has also been replaced with a uniform Warm heat conduction plate so as to achieve better heat dissipation efficiency.

This time, the core part of NVIDIA RTX 4080 has 76 SM units and 9728 CUDA cores, including 304 fourth-generation Tensor cores and 76 third-generation RT cores. It also supports this new generation of DLSS 3 technology like RTX 4090, has 2 NVENC encoders and supports AV1 encoding.

In terms of performance, the core clock of ROG Strix RTX 4080 OC can be increased to 2655 MHz by turning on the overclocking mode in the GPU Tweak III software. This generation still has dual Bios functions, so whether players want the ultimate performance or a quiet experience, this graphics card can meet various user needs.

ROG Strix RTX 4090 OC packaging appearance.
Product features are printed on the back of the package.

The 12VHPWR power adapter cable is provided in the accessory so the player can supply power for this graphics card without replacing the ATX 3.0 power supply. If the adapter cable looks messy after installation, you can use the devil in the accessories. Felt cord management straps secure. In addition, there is a dual-purpose metal graphics card support frame in the accessories. If you can’t find a screwdriver when installing the computer, reverse the support frame’s centre to become a small screwdriver.

1 to 3 12VHPWR power adapter wires.
Fixed with Velcro felt cable management strap.
Dual-purpose metal graphics card support frame.

3.5-slot jumbo, circular LED lighting effects without dead ends

In terms of appearance, the design of this generation also maintains a square shape, with a super-large ROG Logo on the front, and the fan part is replaced with a new generation of axial fans, which are larger in size than the previous generation, and Replaced with a 7-blade fan blade design, the airflow and air pressure have been improved, and the waste heat of the radiator can be removed faster.

A look at the front of the ROG Strix RTX 4080 OC.
The big blue and red gradient ROG Logo is on the front.
7-blade axial fan.

It can be seen from the side that there is no long strip light strip of the previous generation in the design, and a larger opening is left to allow the wind to pass through more smoothly, while the side lighting effect design returns to the classic REPUBLIC OF GAMERS luminous Logo in the lower right corner.

List of side appearances.
REPUBLIC OF GAMERS luminous Logo on the side.
The display output is also provided to 3 Display Ports and 1 HDMI and can output up to 4 images at the same time.

At the end of the graphics card, a ring light is designed this time, with 360-degree coverage without dead ends, so that the light effect can be seen no matter how installed the graphics card. Still, if you want to achieve the best visual effect, you can match it with a glass panel in front of the TUF GT502, and you can look directly at the internal chassis to see the ring light, no matter the front or side.

A list of the appearance of the rear end of the graphics card.
Two 4-Pin PWM fan headers.
Schematic diagram of lighting the ring light at the rear end.

The design of this generation of the metal back panel also has ventilation openings on the side, but unlike the common large-area openings, this time, the striped openings are used in the design, so you can see that it can not only achieve the effect of ventilation, but also It can make ROG Logo similar to Glitch effect on the opening, taking into account heat dissipation and visual effects at the same time.

A list of the appearance of the metal backplane.
Special back panel opening design.
Dual Bios switch, since the PCB is completely covered by the metal backplane, the switch can only be seen from the side.

After removing the 3.5-thick radiator, you will find the design very special. The middle frame is directly connected to the fan cover, and the middle is the heat dissipation fin. The fin part is penetrated by 4 heat pipes, and the heat dissipation fin On the top of the chip, you can see a large-area uniform temperature heat conduction plate, which can accelerate the waste heat dissipation of the core chip and memory.

Disassembly list of the graphics card.
The uniform temperature heat conduction plate on the cooling fins.
The metal backplane has heat conduction stickers in the power supply area to help dissipate heat.

In the centre of the PCB is the RTX 4090 core chip code-named AD102-300-A1, and on one side are 12 2GB Micron memory particles code-named D8BZF. The supply part uses an 18+4 phase digital power supply and Super Alloy Power II top aluminium alloy inductors. With a 15K capacitor.

PCB front side.
PCB backside.
RTX 4090 core chip and 18+4 phase digital power supply.
Meguiar memory particles.

GPU Tweak III Software

GPU Tweak III is ASUS’ graphics card monitoring and overclocking software. The software provides three different performance modes for players to quickly adjust the mode. Of course, manual overclocking is also possible. In terms of fan settings, ROG Strix RTX 4080 OC The fan is automatically turned on by default, and ASUS has optimized the fan tuning for RTX 40 series graphics cards in the software so that this generation of graphics cards can have the best cooling effect, that is, noise performance.

GPU Tweak III software home page.
List of monitoring pages.
OSD setting page.
The software quickly opens the page.
Software built-in GPU-Z.

Basic performance test

Test platform:
Processor: Intel Core i9-12900K
Memory: Corsair Vengeance RGB DDR5 6400Mhz CL30 8GBx2
Display card: ROG Strix GeForce RTX 4080 OC
Operating system: Windows 11 Pro

ROG Strix GeForce RTX 4080 OC In GPU-Z, you can see that the core part adopts the AD103 core chip of Ada Lovelace architecture, the process is TSMC 4 nm, and it has 9728 One Cuda core, the memory is Micron GDDR6X 256-Bit 16384 MB (16GB), the core clock is 2205 MHz, the Boost clock is 2625 MHz, and the memory clock is 1400 MHz (22.4Gps). This test is performed in GPU Tweak. The overclocking mode is turned on in III, so the actual Boost clock is 2655 MHz during the test.


3DMark is a performance test software for simulating 3A-level game graphics calculations. The Fire Strike series simulates the running of DX11 games. In the Fire Strike test with FHD resolution, the graphics card score of ROG Strix GeForce RTX 4080 OC was 68,235 points; 2K The graphics card scored 35,303 points on the Fire Strike Extreme test at 4K resolution and 18,030 points on the Fire Strike Ultra test at 4K resolution.

3DMark Fire Strike.
3DMark Fire Strike Extreme.
3DMark Fire Strike Ultra.

The DX12 API test is also conducted using 3DMark. The Time Spy series mainly tests the game performance under DX12. The default resolution is 2K. The ROG Strix GeForce RTX 4080 OC got a graphics card score of 29,148 points, while the 4K Extreme test got a graphics card score of Score 14,610 points.

3DMark Time Spy.
3DMark Time Spy Extreme.

Port Royal is a game simulation test with ray tracing technology. The default test resolution is 1440p. ROG Strix GeForce RTX 4080 OC passed the test and got a graphics card score of 18,428. The newly launched Speed ​​Way test was also conducted at 1440p resolution, but It is developed by DirectX 12 Ultimate API, and many new technologies are applied in the design, and the graphics card score is 7,363 points in the test.

In addition, in the NVIDIA DLSS feature test project, a DLSS 3 test has been added. This test also includes DLSS 2 and DLSS 3. In the actual test, 1440p and 2160p are tested in performance mode, and 4320p is tested in ultra-high performance mode. DLSS 2 can provide about 2~3 times performance improvement, while DLSS 3 will improve the performance even more. The results are for players’ reference.

3DMark Port Royal.
3DMark Speed ​​Way.
3DMark NVIDIA DLSS feature test.

Game Performance Test

In the game test section, select “Dianyu Renren 2077”, “Watch Dogs: Freedom Legion”, “Far Cry 6”, “Forza Motorsport: Horizon 5”, “Assassin’s Creed: Viking Age”, “SUPER PEOPLE”, and “Rainbow Six: Evacuate the Restricted Zone” were tested. The test resolution was 1440p and 2160p for players’ reference. The newly added test “SUPER PEOPLE” is a battle royale multiplayer online shooting game that supports DLSS 3.

According to the actual measurement, it can be seen that when the AAA masterpiece is fully turned on at 2160p, although the average frame rate cannot be as high as that of the RTX 4090, it also falls at around 80~90 frames. The overall performance is not bad, and the competitive games are OK Break a hundred frames.

AAA masterpiece game testing.

If the light-chasing game is a performance-hungry game like “Dian Yu Ren Ke 2077” and “Watch Dogs: Freedom Legion”, the 2160p is about 30 frames, and the 1440p is about 60 frames. Overall, it is not bad Accepted, but after DLSS is turned on, it can basically have about 100 frames. Therefore, for light-chasing games, with the support of powerful DLSS technology, it can also give a smooth game experience.

Light chase game test.
DLSS 3 / DLSS 2 game testing.

Creation software test

For the productivity test, Blender, a cross-platform 3D creation software, was chosen for the test. Under the test of Blender Benchmark 3.3, the number of samples per minute for the monster scene was 5002, that of the junkshop was 2287, and that of the classroom was 2409.

Blender Benchmark 3.3.

The V-Ray 5 ray-tracing rendering software developed by Chaos Group has launched the V-Ray 5 Benchmark, which allows players to test the performance of their CPU and GPU in ray-tracing rendering. Under the V-Ray GPU CUDA test, they obtained 3177 vpath, V -Ray GPU RTX test obtained 4271 vrays.

V-Ray 5 Benchmark GPU CUDA test.
V-Ray 5 Benchmark GPU RTX test.

Temperature and power consumption

The temperature and power consumption test is based on the highest value of the entire platform. It is equipped with an i9-12900k processor. Through FurMark, Time Spy Stress Test, and GPU-Z, simulate the temperature under high load, DX12 games, and standby. And power consumption. The temperature of ROG Strix GeForce RTX 4080 OC on standby is 43 degrees, and the power consumption of the whole platform is 93 W; the temperature of the Time Spy Stress Test is 61 degrees, and the power consumption of the whole platform is 436 W; the temperature of FurMark 4xMSAA is 59 degrees, The power consumption of the whole platform is 369 W.

Temperature measurement.
An actual measurement of power consumption.

ROG Strix GeForce RTX 4080 OC Summary

ROG Strix RTX 4080 OC was launched by ASUS this time. Although it continues to use the radiator of the big brother RTX 4090 version, the overall size has not been reduced, but it has exceeded expectations in terms of heat dissipation. The machine test shows that the temperature is only around 60 degrees, which is an amazing performance.

The performance is partly because the current mainstream is still 2K monitors, so I believe that RTX 4080 may still have excess performance for most players, but if players want to change to 4K monitors or want to play AAA games under 2K, they can have a smooth performance of over 100 frames For the screen, you can still consider starting with RTX 4080.

Overall, if players want to buy the flagship RTX 4080, this time, ASUS ROG STRIX RTX 4080 OC has excellent performance in terms of performance, heat dissipation, and appearance. Interested players can refer to it.

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Title: 18+4 phase power supply, burn-in only 60 degrees!? ROG Strix GeForce RTX 4080 OC graphics card