ASUS ROG Strix GeForce RTX 4090 OC Graphics Card with 24+4 Phase Power Supply, Heavyweight Debut

ROG Strix GeForce RTX4090 OC

This time, NVIDIA launched a new generation of RTX 40 series graphics cards, and ASUS also launched the flagship ROG Strix GeForce RTX 4090 OC graphics card. In order to meet the new high-end core RTX 4090, the newly designed radiator has a larger size, and The Boost clock is tuned to 2640 MHz to squeeze as much performance as possible for players.

Graphics Processor: NVIDIA GeForce RTX 4090
CUDA Core: 16384
Memory: 24GB GDDR6X
Memory Interface: 384-bit
Core Clock: Boost – 2640 MHz (Overclock Mode)
Memory Clock: 21 Gbps
PCI Express: 4.0 x16
Output Ports: 3 x DisplayPort 1.4a, 2 x HDMI 2.1
HDCP Support: 2.3
Power Port: 1 x 16-pin
Recommended Power Supply: 850W
Dimensions: 357.6 x 149.3 x 70.1 mm

ROG Strix RTX 4090 OC Out of the box

The ROG Strix The RTX 40 series graphics cards have been replaced with a new design. Of course, on the first launch of the ROG Strix RTX 4090 OC, you can see that the overall size is larger this time, with a length of nearly 36 cm and a thickness of 3.5 slots. , and has a weight of about 2.5 kg. Among the RTX 4090s this time, it can be regarded as a heavyweight style.

In addition to the cooling upgrade this time, a new generation of Ada Lovelace architecture is used in the core part, with 128 sets of SM units, including 512 fourth-generation Tensor cores and 176 third-generation RT cores, and can support new ones. The factory default of the core Boost clock is overclocking to 2610 MHz. Turn on the overclocking mode in the GPU Tweak III software, and you can further increase the Boost clock to 2640 MHz.

ROG Strix RTX 4090 OC packaging appearance.
ROG Strix new inner box.
Accessories list, devil felt cable management belt, power adapter cable, dual-purpose graphics card holder, collection card, hand-made mobile phone holder.

First of all, let’s see the accessories part. This time, the new RTX 4090 adopts the 16-Pin 12VHPWR power supply interface, so the accessories also have 16-Pin to 4 8-Pin power adapter cables, so that players can upgrade ATX 3.0 without upgrading. The standard power supply can also power the RTX 4090 graphics card.

16-Pin to 4 8-Pin power supply adapters.
16-Pin connector.
4*8-Pin connectors.

Considering that most players should use 16-Pin to 4 8-Pin power adapter cables, the ROG believes devil felt cable management belt in the accessories can play a role in the entire line. In addition, due to the long design The design of the strip, so can show different patterns when used in different directions.

The left side pattern of the devil felt cord.
Devil felt cord with the right pattern.

In addition, there is also the same dual-purpose graphics card support frame in the TUF Gaming accessories. Since the RTX 4090 series graphics cards are more than 3 card slots thick this time, this metal support frame is relatively short in size, but in addition to the function of the graphics card support frame, After the middle bracket is removed and installed in reverse, it can be turned into a simple small screwdriver.

Height-adjustable graphics card support bracket.
The bracket can be removed and installed in reverse, and converted into a screwdriver.

The 3.5 slots, forward and reverse axial fans, 7 heat pipes

The front design is not as technological as the previous generation. However, under the new design, you can see the oversized ROG Logo on the front, which can be said to be quite domineering visually. In the fan part, a 7-blade axial fan is used this time, and the forward and reverse directions are staggered to maximize the wind flow.

The appearance of ROG Strix RTX 4090 OC graphics card.
On the right half of the front, there is a ROG Logo with an oversized red and blue gradient.
The middle is the reverse axial fan, and the two sides are the forward axial fan.

In order to meet the heat dissipation requirements on the side part, there is no light Bar on the side, only the luminous RGB Logo is left. In the front part of the side, you can see the switch of dual Bios mode, and the direction signs of “P mode” and “Q mode” can be seen on the metal back panel. Good performance, and “Q mode” mode will be quieter.

A list of the appearance of the side of the graphics card.
On the side, there is only the Republic of Gamers luminous Logo.
Due to the relatively complete coverage of the metal backplane, the dual Bios mode switch can only be seen from the side.
16-Pin 12VHPWR power supply interface.

When you look at the back of the graphics card, you can also see the words ROG and the ROG Logo. What’s more special is that the tail area and the oblique clause are used to open the hole, so that the Logo has the visual effect of a Glitch, and it can also make this area at the same time. The airflow can directly pass through the backplane to achieve more efficient heat dissipation.

The appearance of the metal back plate is listed.
There is an oblique ventilation opening at the rear end of the back panel.

At the end of the graphics card, you can see that there is a unique ring light covering this time, and the middle is a horizontal strip-shaped metal frame. What is more special is that this time, the position of the two 4-Pin PWM fan connectors has been changed to this side, which is more convenient. Players can use the whole line better.

The rear end of the graphics card has a metal frame all-inclusive design this time.
Two 4-Pin PWM fan headers can be seen at the end.
A list of 360-degree lighting effects at the rear end.

On the other side, you can see the familiar 304 stainless steel 2-slot baffle, and the display output is given to 2 HDMI 2.1 and 3 DisplayPort 1.4a, which can output up to 4 images at the same time.

The output list is displayed.

In the heat dissipation part, after disassembling the heatsink, you can see the part where the heatsink is in contact with the core. This time, a new uniform temperature heat guide plate is used to effectively discharge the waste heat from the core, that is, the memory area. The chip is equipped with 7 heat pipes that run through the entire set of radiators so that the waste heat can spread to the entire fins more quickly, and then the waste heat is taken away by the fan.

A list of the dismantling of the radiator.
The radiator adopts the uniform temperature heat conduction plate to directly contact the core.
The metal backplane also has a thermally conductive paste on the power supply original area.

In the centre of the PCB, you can see the RTX 4090 core chip codenamed AD102-300-A1, and on the side are 12 2GB Micron memory chips codenamed D8BZC. The power supply part uses a 24+4-phase digital power supply, Super Alloy Power II top aluminium Alloy inductor with a 15K capacitor.

Overview of the front side of the PCB.
Overview of the back of the PCB.
Overview of core and power supply designs.
Micron memory particles.

GPU Tweak III Software

GPU Tweak III is ASUS’ graphics card monitoring and overclocking software. There are three different performance modes in the software for players to quickly adjust the mode. Of course, manual overclocking is also possible. On the fan setting, ROG Strix RTX 4090 OC The fan is automatically stopped by default, and ASUS has optimized fan tuning for RTX 40 series graphics cards in the software so that this generation of graphics cards can have the best cooling effect and noise performance.

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

Basic Performance Test

ROG Strix GeForce RTX4090 OC

Test Platform:
Processor: Intel Core i9-12900K
Memory: Kingston FURY Beast DDR5 16GBx2
Graphics Card: ROG Strix GeForce RTX 4090 OC
Operating System: Windows 11 Pro

ROG Strix GeForce RTX 4090 OC In GPU-Z, you can see that the core part adopts AD102 core chip of Ada Lovelace architecture, the process is 4 nm and has 16384 Cuda cores, and the memory is Micron GDDR6X 384-Bit 24576 MB ( 24GB), the core clock is 2265 MHz, the Boost clock is 2610 MHz, and the memory clock is 1313 MHz (21Gps). In this test, the overclocking mode is turned on in GPU Tweak III, so the actual Boost clock during the test is 2640 MHz.


3DMark is a performance test software that simulates 3A-level game graphics operations. The Fire Strike series simulates the running of DX11 games. In the Fire Strike test with FHD resolution, ROG Strix GeForce RTX 4090 OC scored 83,368 points; 2K The graphics card scored a score of 47,768 in the Fire Strike Extreme test at 4K resolution and 25,904 in 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 performed using 3DMark, while the Time Spy series mainly tests the game performance under DX12. The default resolution is 2K. The ROG Strix GeForce RTX 4090 OC scored 37,777 points for the graphics card, while the Extreme test with 4K image quality obtained the graphics card. Score 20,048 points.

3DMark Time Spy.
3DMark Time Spy Extreme.

In the ray tracing part, Port Royal is a game simulation test that adds ray tracing technology. The default test resolution is 1440p. ROG Strix GeForce RTX 4090 OC passed the test and got a graphics card score of 26,494 points. In addition, in the NVIDIA DLSS feature test project, this time using The beta test version includes a new DLSS 3 test. In the test, it can be found that DLSS 3 can indeed perform better than DLSS 2. According to the test results, the higher the resolution, the more obvious the improvement in the number of frames of DLSS 3.

3DMark Port Royal.
3DMark NVIDIA DLSS feature test.

Game performance test

In the game test section, select “Electric Rider 2077”, “Watch Dogs: Freedom Legion”, “Polar Howl 6”, “Thriller: Exile”, “Assassin’s Creed: Viking Age”, ” Rainbow Six: Escape from the Restricted Area” and “Forza Motorsport: Horizon 5” were tested, and the test resolution used 1440p and 2160p for players’ reference.

In the AAA game part, since the performance of RTX 4090 is more than 1 time higher than that of RTX 3090 this time, AAA masterpieces can easily achieve an average performance of more than 60 frames with full special effects at 2160p, which is a competitive shooting game that does not eat performance. , you can have more than 2160p 144fps performance.

AAA masterpiece game test.

The light chasing test part is tested with 4 games, “Electric Rider 2077”, “Watch Dogs: Freedom Legion”, “Polar Cry 6”, and “Thriller: Exile”.

In the test of the light chasing game, the tested 4 games do not have DLSS or FSR but actually have a good frame rate performance. Among them, only the frame rate performance of “Dian Yu Ren Ke 2077” is relatively low, and after the DLSS function is turned on, in In DLSS 2 mode, the performance of breaking 100 frames can be achieved. In addition, this time I also used the beta version of “Dianyu Renke 2077” to measure DLSS 3. Under the actual measurement, the number of frames can be further improved, about 2 times under 1440p. , 2160p can achieve 3.5 times performance improvement.

Light chase game test.
Open DLSS/FSR test for light chasing game.

Temperature and power consumption

The temperature and power consumption test is mainly 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, the temperature is simulated under high load, DX12 games and standby conditions. and power consumption. ROG Strix GeForce RTX 4090 OC operates at a temperature of 40 degrees and consumes 110 W of power on the entire platform; when the Time Spy Stress Test is running, the temperature is 64 degrees and the power consumption of the entire platform is 557 W; when FurMark 4xMSAA is running, the temperature is 66 degrees, the power consumption of the whole platform is 543 W.

The temperature is measured.
Measured power consumption.

ROG Strix RTX 4090 OC Summary

ROG Strix GeForce RTX4090 OC

This update of the RTX 4090 brings strong performance, which is followed by a larger graphics card size. This time, the ROG Strix RTX 4090 OC has a newly designed radiator, although the size has reached 3.5 card slots, 35 cm long, in terms of heat dissipation, the temperature of the graphics card can be suppressed to around 65 degrees, which is equivalent to using a larger size for better heat dissipation performance. It may be necessary to pay attention to whether the size of the case is large enough, and if the accessories are included The graphics card bracket does not fit your case, you may also need to prepare a suitable graphics card bracket for this graphics card.

In terms of performance tuning this time, Boost clock pre-overclocking to 2640 MHz is basically the first class among the RTX 4090s. If players want to conquer the new generation of the strongest graphics cards at once, ROG Strix RTX 4090 OC is a good one you can consider.

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Title: ASUS ROG Strix GeForce RTX 4090 OC Graphics Card with 24+4 Phase Power Supply, Heavyweight Debut