ASUS ROG Strix RTX 4080 16GB Graphics Card: features, specs and who it suits

The ASUS ROG Strix GeForce RTX 4080 is a high-end graphics card for desktop PCs. It uses NVIDIA's Ada Lovelace architecture with 16GB of GDDR6X memory, and it is wrapped in ASUS's largest cooler design for the card. It is aimed at gaming and other graphics-heavy work in a desktop with plenty of room.

The Ada Lovelace architecture

NVIDIA's Ada Lovelace generation introduced new streaming multiprocessors, the units that do most of a graphics chip's calculation. The listing says they offer up to twice the performance and power efficiency of the previous generation. It also lists 4th generation Tensor Cores, with up to 2X AI performance, and 3rd generation RT Cores, with up to 2X ray-tracing performance. Tensor Cores speed up AI tasks such as upscaling, and RT Cores handle ray tracing, a lighting technique that models how light bounces in a scene. These are figures from the maker, and real gains depend on the game, settings and system.

Memory and connections

The card carries 16GB of GDDR6X, a fast type of video memory. A large memory pool matters for high resolutions and detailed textures. The interface is PCIe 4.0, and the card also works in PCIe 5.0 slots, which are backward compatible. Outputs are HDMI 2.1a and DisplayPort 1.4a, which typically support high refresh rates at high resolutions on monitors with the matching inputs.

Cooling design

Cooling is where this card stands out physically. ASUS lists:

• Three Axial-tech fans, scaled up for 23% more airflow, per ASUS.
• A patented vapor chamber with a milled heatspreader to lower GPU temperatures. A vapor chamber spreads heat quickly across a flat plate before the fins release it.
• A 3.5-slot design with a large fin array optimised for airflow from the three fans.
• A diecast shroud, frame and backplate that add rigidity and are vented for extra airflow.

The card measures about 14.1 x 5.9 x 2.8 inches and weighs 5.5 lb (2.5 kg). Heavy cards like this commonly need a support bracket to prevent the board sagging, depending on your case.

Power delivery

ASUS describes digital power control with high-current power stages and 15K capacitors "to fuel maximum performance". In practice, power delivery matters for steady clocks and low electrical noise. The card needs a power supply of suitable wattage with the right cables; see the specifications from ASUS and NVIDIA for the recommended wattage.

Who it suits

This card suits people building a high-end gaming or creative desktop, especially one that targets high resolutions or high refresh rates, uses ray tracing, or takes advantage of AI-assisted features. It's also useful for graphics-heavy creative work that can use the GPU. Anyone with a compact case or a modest power supply should look closely at the size and power requirements before choosing a card this large.

What to check before you buy

• Your case has room for a 14.1-inch card, 3.5 slots wide, with clearance for the side panel and cables.
• Your power supply wattage and connectors match what the card requires.
• Your motherboard has a free PCIe x16 slot, ideally with reinforcement, and the slots below it can stay empty.
• Your monitor has HDMI 2.1 or DisplayPort inputs that suit the refresh rate you want.
• Your processor won't hold the card back at the resolution you play at.
• Airflow in the case, because a big card needs fresh air at its fans.

The short version

• ASUS ROG Strix GeForce RTX 4080 with 16GB of GDDR6X, based on NVIDIA's Ada Lovelace architecture.
• PCIe 4.0 interface, HDMI 2.1a and DisplayPort 1.4a.
• Three Axial-tech fans, vapor chamber, diecast shroud and backplate.
• A large 3.5-slot card of about 5.5 lb: check case and power supply fit first.

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