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Comprehensive Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition

+Simple Water Cooling = Powerful! 4K/Raytracing Works Well. The ROG's high-end video card is 20% superior to the regular 3090.

Story Highlights
  • Highlighted Features:
  • The all-new Ampere SM brings 2X the FP32 throughput and improved power efficiency.
  • 2nd Generation RT Cores + 3rd Generation Tensor Cores
  • G6X Memory is the world’s fastest graphics memory on the GeForce RTX 3090 Ti.
  • 8K HDR Gaming GPU, Powered by AI
  • Full-coverage cold plate brings liquid cooling to GPU die and memory.
  • On-board cooling for power-delivery is handled by a blower-style fan and low-profile heatsink.

The Review Asus ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling. Many people use a simple water-cooled CPU cooler to cool the CPU. It’s not uncommon for BTO (Built to Order) PCs to have a simple water-cooled CPU cooler as standard. On the other hand, when looking at video cards, simple water cooling hasn’t spread as far as one can imagine.

The main reason for this is the difficulty of setting up an all-purpose cooler as the size and shape of the cards differ depending on the GPU and manufacturer, but now GPUs consume more power than CPUs, and cooling performance is required. There is no doubt that a simple water-cooled cooler with amazing performance is attractive.

Meanwhile, ASUS has released the “ROG Strix LC GeForce RTX 3090 Ti OC Edition” video card (hereinafter referred to as ROG Strix LC GeForce RTX 3090 Ti) that uses a simple water-cooled GPU cooler. This product uses the top-end GeForce RTX 30 series “GeForce RTX 3090 Ti” (hereinafter referred to as RTX 3090 Ti) for the GPU, but what type of graphics card is it? I’d also like to know how well it performs in games.

The boost clock is 1950MHz, up to 2055MHz under load

Let’s start with the specifications of the ROG Strix LC GeForce RTX 3090 Ti. While the ROG Strix LC GeForce RTX 3090 Ti’s base clock hasn’t been disclosed, the boost clock is 1950MHz, which is 90MHz higher than the reference RTX 3090 Ti’s 1860MHz.

Additionally, when we looked at the GPU core clock under load with “GPU-Z” (Version 2.46.0) in the test environment described later, we confirmed that it increased to 2055MHz. The memory clock is 21Gbps, which is unchanged from the reference.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: GPU-Z execution result

In addition, ROG Strix LC GeForce RTX 3090 Ti has three operating modes, “OC mode”, “Game mode” and “Silent mode”, and can be activated with the attached application “GPU Tweak II” (Version 2.3.9.0). The factory default setting is Gaming mode, and the operating hours’ settings are as described above.

In OC mode, the boost clock will be increased by 30MHz to 1980MHz, and Target Power will also be increased to 106%. In silent mode, on the other hand, the boost clock is reduced by 30 MHz to 1920 MHz, and the Power Target is also suppressed by 94%. In all modes, the memory clock remains the same at 21 Gbps.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: GPU Tweaks II

In the Advanced Mode of GPU Tweak II, the boost clock can be changed from 1755 to 2145 MHz in 1 MHz increments, and the GPU voltage can also be changed. It can be increased to 100% in 1% increments. In addition, the memory clock can also be changed to 18902 ~ 23102Mbps in 1Mbps increments, and there are many settings related to overclocking.

1demo banner 300x250
review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: The Advanced Mode in GPU Tweak II includes a boost clock and other overclocking-related settings.

ROG Strix LC GeForce RTX 3090 Ti has two VBIOS: P mode and Q mode. The factory default is P mode, and the VBIOS can be switched to Q mode with the dip switch on the side of the card. In Q mode, Target Power is lowered and silence is improved by reducing fan speed.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: DIP switch for changing BIOS on the side of the card. The bracket side is P mode, and the reverse side is Q mode. Also, you can see the terminal for NVLink SLI right next to it.

The card length is larger at 295 mm in actual measurements, and the specifications differ in water-cooled and air-cooled areas

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: Picture when the LED light is emitted

Let’s move on to the card view. The actual length of the card is about 295 mm (excluding protrusions), and when installed on the motherboard, it protrudes vertically about 34 mm from the bracket, making the card size quite large.

The GPU cooler is a 2.6-slot occupancy type and thick, and while the water-cooled cooler is modest, it does come with a blower fan that equates to 80 mm squared. According to ASUS, this simple water-cooled blower and cooler separate the parts to be cooled, and the former is responsible for the board and power supply section and the latter is responsible for the GPU and memory chips.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: It is a striking design put together in deep black color and some lines are placed in it. Due to the length and height of the card, its size gives the impression of being quite large. Although it is a simple water-cooled type, the blower fan is mounted on the GPU cooler.

The length of the two hoses extending from the GPU cooler to the radiator is about 50 cm, and the flexibility is good too. It is also relatively easy to handle in a PC case. In addition, the radiator measures 272 (W) × 121 (D) × 54 (H) mm, which is the size commonly referred to as the 240 mm class. ROG Strix LC GeForce RTX 3090 Ti also has a feature called “0dB Fan” which stops the fan from spinning when the GPU core load is low, and it’s also possible to disable the 0dB Fan from the previous GPU Tweak II so that it always spins.

In addition, the Advanced Mode of GPU Tweak II allows you to change the control of the two radiator fans with left and right fan speeds, and the Blower fan on the GPU cooler with Center fan speed. In addition to being able to set the rotation speed to 0 ~ 100% in 1% increments, it is also possible to determine the number of revolutions at each temperature of the fan curve arbitrarily.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: The card is seen from the side. There are only 2.6 slots occupancy types, and the thickness is quite good
review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: It is equipped with a 240mm radiator. The radiator has two 120mm square fans.

Both fan and GPU cooling surfaces are equipped with flashy LEDs. In addition, the LEDs are controlled from “Aura Sync” of the utility software “Armory Crate” (Version 3.1.3.0), and 10 effects including constant lighting are set up.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: Aura Sync LED control function is provided in Armory Crate

Additional power connectors include one “12VHPWR” connector that fits PCI Express 5th generation expansion cards. The 12-pin connector, with 4 pins for sensors on the bottom, can handle up to 600W TGP, more than the RTX 3090 Ti with 450W TGP.

However, power supplies that support this standard are almost non-existent on the market. Therefore, this product includes a cable that branches from 12-pin to 3×8-pin so that it can be used with conventional power supply units. Additionally, there are DisplayPort 1.4a×3 and HDMI 2.1×2 video output terminals, and it is commendable that two HDMI systems are set up to take advantage of the thickness of the card.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: The auxiliary power connector is equipped with the next generation 12VHPWR. However, not many power supply support 12 pins yet, so a cable that converts 12 pins to 8-pin × 3. When using conversion cables, do not use 4-pins for sensors
review rtx 3090 ti + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition: Due to the thickness of the GPU cooler, the bracket area is also large. The fact that HDMI has been upgraded to two systems is a good impression

About 15% higher performance than RTX 3090

Now let’s get to the ROG Strix LC GeForce RTX 3090 Ti test. This time, a video card equipped with “GeForce RTX 3090” (hereinafter referred to as RTX 3090) was prepared for comparison. Let’s see how much advantage it has over the lesser models. ROG Strix LC GeForce RTX 3090 Ti was tested in P mode and factory-set Gaming mode.

PeripheralsSystem verification environment
CPUAMD Ryzen 9 5950X (16 cores/32 threads, 4.9GHz max)
MotherboardASRock X570 Taichi
AMD X570, ATX
MemoryDDR4-3200 8GB×2
Video cardASUS “ROG Strix LC GeForce RTX 3090 Ti OC Edition”
(GeForce RTX 3090 Ti, GDDR6X 24GB),
GeForce RTX 3090-based video card
StoragePlextor PX-512M9PeG
(512GB M.2 SSD, PCIe 4.0)
Power supply unit SilverStone SST-ST1200-G Evolution
(1200W, 80PLUS GOLD)
OS (Operating System) Microsoft (Windows 11 Home 64bit)
Testbed Specifications

The graphics driver uses the GeForce 512.59 Driver, which will be the latest version at the time of testing. The other main test environments are shown in the table.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition

Let’s start with the results of the classic benchmark tool “3DMark” (Version 2.22.7359). ROG Strix LC GeForce RTX 3090 Ti scores about 7~16% higher than RTX 3090 in Fire Strike.

In Fire Strike “Unmarked”, the CPU is the bottleneck and the gap between the two is getting closer, but it’s amazing that the Fire Strike Ultra with a test resolution of 3840×2160 dots makes a difference of about 16%. Even in Time Spy, DirectX 12 testing, the ROG Strix LC GeForce RTX 3090 Ti scored well, leaving a gap of about 12~15% from the RTX 3090.

Moreover, even in “Port Royal” looking at ray tracing performance, the fact that it is about 17% behind the RTX 3090 can be said to fully demonstrate the strongest class performance of the current generation.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition
review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition
review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling

But what about the actual game? Let’s take a look at the Resident Evil Village show. Here, select “Breakthrough limit” to maximize the image load from the automatic graphics settings, and then enable ray tracing. In this state, the game is played and the frame rate is obtained by “CapFrameX” (Version 1.6.8).

As a result, the ROG Strix LC GeForce RTX 3090 Ti lags behind the RTX 3090 by around 15~21% in average frame rate and 1st percentile frame rate. In particular, it is remarkable that even at 3840×2160 dots, the first percentile frame rate is close to 100fps. ROG Strix LC GeForce RTX 3090 Ti will keep you comfortable playing games even with ray tracing enabled in high resolution.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling
review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling
review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling

Next, let’s move on to testing in Far Cry 6, where we chose the highest preset from the options and changed ray tracing to Enabled. In that state, you run the benchmark mode that came with the game.

In this game, the difference between ROG Strix LC GeForce RTX 3090 Ti and RTX 3090 is only about 3~8% in average frame rate, and it doesn’t have the same momentum as Resident Evil Village.

However, even with ray tracing enabled at 3840×2160 dots, it can be assumed that the performance is consistent at 60fps or higher. 60fps is one indicator of comfort and a good frame rate to enjoy single-player games. I’m glad that we were able to demonstrate this in a stable way.

The frame rate is always close to 140 fps even in 4K. The cooling performance of the simple water cooler is also perfect

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling
review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling
review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling

Even in Call of Duty: Warzone, the ROG Strix LC GeForce RTX 3090 Ti performs very well. Here, we play with the options set to maximize image load and enable ray tracing. The frame rate during that time was measured with CapFrameX, but at 1920×1080 the CPU seems to be the bottleneck, and the results are both stable.

Focusing on the 3840×2160 dot, the ROG Strix LC GeForce RTX 3090 Ti is about 12% behind the RTX 3090, with a first percentile frame rate of 140 fps. Given the high frame rate, this is a performance that seems to be within reach of a dream-like environment that allows ray tracing and playing PvP battles.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling

Check out Final Fantasy XIV: Akatsuki Finale benchmark results. Here, we set it to “best quality” and run the benchmark. ROG Strix LC GeForce RTX 3090 Ti also surpassed Square Enix’s highest score of 15,000 at 3840×2160 points. The difference with the RTX 3090 is also about 5~14%, and it can be said that it embodies a performance increase.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling

Lastly, let’s look at GPU temperature. Here, 3DMark was performed continuously for 30 minutes, and the highest temperature during that time was adopted as a result. The results are quite clear. ROG Strix LC GeForce RTX 3090 Ti exhibits fairly low temperatures, with GPU temperatures not exceeding 60°C even under heavy loads.

Also, the GDDR6X VRAM tends to be warm, but it’s admirable that the temperature is below 80°C. The two RTX 3090s have a gap of almost 20°C, and it can be said that the effect of using a simple water-cooled cooler is quite high.

The price is very expensive which is USD 2600~2950, but the amazing game performance is interesting

ROG Strix LC GeForce RTX 3090 Ti is proven to have high performance that lets you play games comfortably even when ray tracing is enabled in 4K. It’s also a good impression that the GPU and VRAM are kept at a low temperature. It can be said that it has a powerful GPU cooler which is suitable for a top GPU.

The bottleneck will be the price. The price of ROG Strix LC GeForce RTX 3090 Ti is very expensive at around USD 2600 ~ 2950. Therefore, it is very difficult to say that this is a video card that can be recommended to everyone.

But if you’re looking for a card that’s comfortable to play in any game and has better cooling, the ROG Strix LC GeForce RTX 3090 Ti is here for you. For those looking for the strongest gaming environment, this card is undoubted quite an interesting product.

review asus rog rog strix lc geforce rtx 3090 ti oc edition + simple water cooling
Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling

Check out our store if you are interested in buying this product Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling with great deals and other parts and accessories there. You can also click the Shop Now button below to buy it from external vendors.

Do you think you have other ideas about Comprehensive Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling = Powerful! 4K/Raytracing Works Well? You can comment below or discuss more related to “Comprehensive Review ASUS ROG Strix LC GeForce RTX 3090 Ti OC Edition + Simple Water Cooling = Powerful! 4K/Raytracing Works Well” in the CnwinTech Forum. Also, read more articles about Razer or other interesting tech tips and tricks articles only at CnwinTech.

Score Assessment

Performance - 10
Facilities & Features - 9.8
Easiness - 9
Price - 3.5

8.1

Overall

ROG Strix LC GeForce RTX 3090 Ti is proven to have high performance that lets you play games comfortably even when ray tracing is enabled in 4K. It's also a good impression that the GPU and VRAM are kept at a low temperature. It can be said that it has a powerful GPU cooler which is suitable for a top GPU. The bottleneck will be the price.

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User Rating: 4.2 ( 3 votes)

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ASUS ROG Official SiteCnwinTech Labs

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