Buying Guide

The Best 4K Gaming Graphics Cards

Five cards with 16GB or more of video memory, ranked for 4K play where VRAM and cooling matter more than at lower resolutions.

By , PC Hardware Editor

12 min read5 products evaluated

PC components laid out on a workbench ready for a build
Illustrative image

4K puts the most load on a graphics card's memory and cooling, so every card here carries at least 16GB of VRAM. Large coolers follow, so card length and slot width decide what fits.

We compared VRAM, memory type, thickness and power connectors from each listing and NVIDIA and AMD specifications. We did not benchmark these cards.

Quick Picks

Which of the 5 picks to look at first. Tap a name for the full analysis.

  1. Most VRAM for 4K

    ASUS TUF Gaming GeForce RTX 5090

    32GB of GDDR7, the most video memory here.

    Best for: 4K with path tracing and high-resolution texture packs.

    Check price for ASUS TUF Gaming GeForce RTX 5090 on Amazon (opens in a new tab)
  2. Best Previous-Generation Flagship

    ASUS TUF Gaming GeForce RTX 4090 OC Edition

    An RTX 4090 with 24GB of GDDR6X.

    Best for: Buyers who find a 4090 at a better price than a 5090.

    Check price for ASUS TUF Gaming GeForce RTX 4090 OC Edition on Amazon (opens in a new tab)
  3. Best Slim RTX 5080

    ASUS ProArt GeForce RTX 5080 16GB OC Edition

    A 2.5-slot RTX 5080 with 16GB of GDDR7.

    Best for: 4K builds in cases that cannot take a thick card.

    Check price for ASUS ProArt GeForce RTX 5080 16GB OC Edition on Amazon (opens in a new tab)
  4. Best AMD Pick for 4K

    Sapphire Nitro+ AMD Radeon RX 7900 XTX Vapor-X

    An RX 7900 XTX with 24GB of GDDR6.

    Best for: 4K play without the 16-pin connector.

    Check price for Sapphire Nitro+ AMD Radeon RX 7900 XTX Vapor-X on Amazon (opens in a new tab)
  5. Lowest-Cost 16GB Option

    ASUS TUF Gaming GeForce RTX 5070 Ti 16GB

    An RTX 5070 Ti with 16GB of GDDR7.

    Best for: 4K with upscaling on a tighter budget.

    Check price for ASUS TUF Gaming GeForce RTX 5070 Ti 16GB on Amazon (opens in a new tab)

Our Picks

Most VRAM for 4K1 of 5

ASUS TUF Gaming GeForce RTX 5090

The ASUS TUF RTX 5090 is in a class of its own with 32GB of GDDR7 and 21,760 CUDA cores.

Best for

4K with path tracing and high-resolution texture packs.

Skip if

Pass if a published cooler thickness matters; this one has none.
ASUS TUF Gaming GeForce RTX 5090

Why we like it

At the time of writing it cost several times more than the other cards here, so it only makes sense when nothing slower will do. Nothing else here matches its 32GB video memory; the ASUS TUF 4090 comes closest at 24GB. An RTX 5090 gpu is unique to it among these picks, while the ASUS ProArt 5080 uses an RTX 5080 gpu.

Like the ASUS ProArt 5080 and ASUS TUF 5070 Ti, it has GDDR7 memory, while the ASUS TUF 4090 uses GDDR6X memory. It also offers a 512-bit memory bus at 28Gbps and a GPU holder in the box. No dimensions are published for the ASUS TUF RTX 5090; get length and thickness from the maker's page first. Only the ASUS TUF 4090 came close to it on price at the time of writing; it cost the most of the 5 picks.

Key specs

GPU
RTX 5090
VRAM
32GB
Memory
GDDR7
Outputs
3 x DisplayPort 2.1b, 2 x HDMI 2.1b

Pros

  • 32GB of VRAM, room for large local AI models as well as games
  • Faster GDDR7 memory
  • 512-bit memory bus at 28Gbps
  • 21,760 CUDA cores

Cons

  • No published cooler thickness
  • Costs more than the ASUS TUF 5070 Ti at the time of writing

The catch

There is no published cooler thickness figure, whereas the ASUS ProArt 5080 comes in at 2.5-slot.

Best Previous-Generation Flagship2 of 5

ASUS TUF Gaming GeForce RTX 4090 OC Edition

The ASUS TUF 4090 offers a 2595MHz boost in OC mode and Axial-tech fans that ASUS rates for 23% more airflow.

Best for

Buyers who find a 4090 at a better price than a 5090.

Skip if

The maker gives no cooler thickness, so skip it if that figure decides your choice.
ASUS TUF Gaming GeForce RTX 4090 OC Edition

Why we like it

It is a large, conservatively styled card built around cooling rather than lighting. Axial-tech fans move up to 23% more air than the previous design, and the OC mode raises the boost clock to 2595MHz. It matches the Sapphire Nitro+ 7900 XTX on video memory (24GB).

It is the only pick here with an RTX 4090 gpu; the ASUS TUF RTX 5090 has an RTX 5090 gpu instead. You get GDDR6X memory here, which sets it apart from the ASUS TUF 5070 Ti and its GDDR7 memory. A 2595MHz (OC mode) boost clock is unique to it among these picks, while the ASUS TUF 5070 Ti uses a 2610MHz (OC mode) boost clock.

No dimensions are published for the ASUS TUF 4090; get length and thickness from the maker's page first. Its price falls between the ASUS ProArt 5080 and the ASUS TUF RTX 5090, based on our last check.

Key specs

GPU
RTX 4090
VRAM
24GB
Memory
GDDR6X
Boost clock
2595MHz (OC mode)

Pros

  • 24GB of VRAM, room for large local AI models as well as games
  • Axial-tech fans that ASUS rates for 23% more airflow
  • 2595MHz boost clock in OC mode
  • RTX 4090 gpu, the only one here

Cons

  • No published cooler thickness
  • Costs more than the ASUS TUF 5070 Ti at the time of writing

The catch

Buyers who need a confirmed cooler thickness should compare it with the ASUS ProArt 5080, which comes in at 2.5-slot.

Best Slim RTX 50803 of 5

ASUS ProArt GeForce RTX 5080 16GB OC Edition

ASUS's ProArt RTX 5080 fits a 2.5-slot cooler with a vapor chamber and adds a USB Type-C port, aimed at creator builds with a quieter look.

Best for

4K builds in cases that cannot take a thick card.

Skip if

Price-first buyers should look at the ASUS TUF 5070 Ti, which cost less when we checked.
ASUS ProArt GeForce RTX 5080 16GB OC Edition

Why we like it

It matches the ASUS TUF 5070 Ti on video memory (16GB). Nothing else here matches its 2.5-slot cooler thickness; the ASUS TUF 5070 Ti comes closest at 3.125-slot. No other pick in this guide offers an RTX 5080 gpu; compare the Sapphire Nitro+ 7900 XTX, which has an RX 7900 XTX gpu.

It shares GDDR7 memory with the ASUS TUF RTX 5090 and ASUS TUF 5070 Ti; the Sapphire Nitro+ 7900 XTX goes with GDDR6 memory. You get a 2730MHz (OC mode) boost clock here, which sets it apart from the Sapphire Nitro+ 7900 XTX and its a 2680MHz boost clock. The ASUS ProArt 5080 occupies 2.5 slots, but no length is published, so check the maker's spec page against your case. On price it sat third of 5, between the cheaper Sapphire Nitro+ 7900 XTX and the pricier ASUS TUF 4090, at the time of writing.

Key specs

GPU
RTX 5080
VRAM
16GB
Memory
GDDR7
Thickness
2.5-slot
Boost clock
2730MHz (OC mode)

Pros

  • 16GB of VRAM for high-resolution textures
  • Faster GDDR7 memory
  • Integrated USB Type-C port
  • Vapor chamber heatsink

Cons

  • Costs more than the ASUS TUF 5070 Ti at the time of writing

Best AMD Pick for 4K4 of 5

Sapphire Nitro+ AMD Radeon RX 7900 XTX Vapor-X

Sapphire's Nitro+ Vapor-X offers a 2680MHz boost, the highest of these 7900 XTX cards, on a 3.5-slot, 320mm vapor chamber cooler.

Best for

4K play without the 16-pin connector.

Skip if

Skip it if this is a deal-breaker for you: its 3.5-slot cooler covers the slots below.
Sapphire Nitro+ AMD Radeon RX 7900 XTX Vapor-X

Why we like it

It game-clocks up to 2510MHz with 24GB on a 384-bit bus at 20Gbps. At 3.5 slots and 320mm long, it needs a roomy case. On video memory it ties with the ASUS TUF 4090 at 24GB.

Its 3.5-slot cooler thickness is the thickest in this group; the ASUS ProArt 5080 leads at 2.5-slot. You get an RX 7900 XTX gpu here, which sets it apart from the ASUS TUF 5070 Ti and its an RTX 5070 Ti gpu. No other pick in this guide offers GDDR6 memory; compare the ASUS ProArt 5080, which has GDDR7 memory.

It is the only pick here with a 2680MHz boost clock; the ASUS TUF 5070 Ti has a 2610MHz (OC mode) boost clock instead. It also comes with two HDMI and two DisplayPort outputs. When we checked, only the ASUS TUF 5070 Ti cost less, and the ASUS ProArt 5080 cost more.

Key specs

GPU
RX 7900 XTX
VRAM
24GB
Memory
GDDR6
Length
320mm
Thickness
3.5-slot
Boost clock
2680MHz
Outputs
2 x DisplayPort, 2 x HDMI

Pros

  • 24GB of VRAM, room for large local AI models as well as games
  • Vapor-X vapor chamber cooler
  • Two HDMI and two DisplayPort outputs
  • RX 7900 XTX gpu, the only one here

Cons

  • Its 3.5-slot cooler covers the slots below
  • Cooler thickness trails the ASUS ProArt 5080 (2.5-slot)
  • Costs more than the ASUS TUF 5070 Ti at the time of writing

The catch

Cooler thickness is its weakest area, and the ASUS ProArt 5080 covers it better at 2.5-slot.

Lowest-Cost 16GB Option5 of 5

ASUS TUF Gaming GeForce RTX 5070 Ti 16GB

The ASUS TUF 5070 Ti offers a 2610MHz boost in OC mode on a 3.125-slot cooler, with a phase-change thermal pad and a protective PCB coating.

Best for

4K with upscaling on a tighter budget.

Skip if

Worth skipping when its 3.125-slot cooler covers the slots below is a problem.
ASUS TUF Gaming GeForce RTX 5070 Ti 16GB

Why we like it

It matches the ASUS ProArt 5080 on video memory (16GB). On cooler thickness it sits mid-pack at 3.125-slot: the ASUS ProArt 5080 comes in at 2.5-slot, and the Sapphire Nitro+ 7900 XTX comes in at 3.5-slot. No other pick in this guide offers an RTX 5070 Ti gpu; compare the ASUS ProArt 5080, which has an RTX 5080 gpu.

It shares GDDR7 memory with the ASUS TUF RTX 5090 and ASUS ProArt 5080; the Sapphire Nitro+ 7900 XTX goes with GDDR6 memory. You get a 2610MHz (OC mode) boost clock here, which sets it apart from the ASUS ProArt 5080 and its a 2730MHz (OC mode) boost clock. The ASUS TUF 5070 Ti occupies 3.125 slots, but no length is published, so check the maker's spec page against your case. It undercut the Sapphire Nitro+ 7900 XTX and every other pick on price at the time of writing.

Key specs

GPU
RTX 5070 Ti
VRAM
16GB
Memory
GDDR7
Thickness
3.125-slot
Boost clock
2610MHz (OC mode)

Pros

  • 16GB of VRAM for high-resolution textures
  • Faster GDDR7 memory
  • Phase-change GPU thermal pad
  • Protective PCB coating

Cons

  • Its 3.125-slot cooler covers the slots below
  • Video memory trails the ASUS TUF RTX 5090 (32GB)

The catch

The trade-off is video memory; for more, the ASUS TUF RTX 5090 offers 32GB.

How We Chose

Alex Morgan compared the manufacturer specifications, connectivity, warranty terms and compatibility of every pick. Figures come from the makers unless a third-party source is named; we did not test these products ourselves.

A graphics card's bare circuit board around the GPU die
A graphics card's bare circuit board around the GPU die
The figures behind the order
We set side by side five cards on GPU, video memory, memory and cooler thickness from manufacturer specifications. We did not test them in-house, and cooler thickness and boost clock are missing for at least one pick.
The shared baseline
All 5, from the ASUS TUF RTX 5090 to the ASUS TUF 5070 Ti, state GPU, video memory and memory.
Where the specs have gaps
The ASUS TUF RTX 5090 and the ASUS TUF 4090 give no cooler thickness; the ASUS TUF RTX 5090 gives no boost clock.
Price range
At our last check the picks ran from the ASUS TUF 5070 Ti ($1000 to $1500) to the ASUS TUF RTX 5090 (over $1500).

What to Look for in a 4K Gaming GPUs

Key buying criteria so you get the right fit the first time.

  1. How much video memory you need

    Here video memory runs from 16GB on the ASUS TUF 5070 Ti to 32GB on the ASUS TUF RTX 5090, a 100% spread. For less, the ASUS TUF 4090 is the runner-up at 24GB.

  2. Cooler thickness across these picks

    The ASUS ProArt 5080 tops cooler thickness at 2.5-slot and the Sapphire Nitro+ 7900 XTX sits lowest at 3.5-slot. The ASUS TUF 5070 Ti comes second at 3.125-slot, in the $1000 to $1500 tier against over $1500 for the ASUS ProArt 5080. The ASUS TUF RTX 5090 and the ASUS TUF 4090 give no cooler thickness figure, so 3 of 5 picks are compared here.

    The circuit board on the back of a graphics card
    The circuit board on the back of a graphics card
  3. Memory

    The ASUS TUF RTX 5090, the ASUS ProArt 5080 and the ASUS TUF 5070 Ti list GDDR7; the ASUS TUF 4090 lists GDDR6X; the Sapphire Nitro+ 7900 XTX lists GDDR6.

  4. Boost clock

    The ASUS TUF 4090 lists 2595MHz (OC mode); the ASUS ProArt 5080 lists 2730MHz (OC mode); the Sapphire Nitro+ 7900 XTX lists 2680MHz; the ASUS TUF 5070 Ti lists 2610MHz (OC mode).

  5. Fit and compatibility

    No dimensions are published for the ASUS TUF RTX 5090; get length and thickness from the maker's page first. The ASUS ProArt 5080 occupies 2.5 slots, but no length is published, so check the maker's spec page against your case. Measure for 320mm and 3.5 slots before ordering the Sapphire Nitro+ 7900 XTX.

How to Choose a 4K Gaming GPUs

By priority

PriorityConsiderWhy
4K with path tracing and high-resolution texture packsASUS TUF RTX 509032GB of GDDR7, the most video memory here
Buyers who find a 4090 at a better price than a 5090ASUS TUF 4090An RTX 4090 with 24GB of GDDR6X
4K builds in cases that cannot take a thick cardASUS ProArt 5080A 2.5-slot RTX 5080 with 16GB of GDDR7
4K play without the 16-pin connectorSapphire Nitro+ 7900 XTXAn RX 7900 XTX with 24GB of GDDR6
4K with upscaling on a tighter budgetASUS TUF 5070 TiAn RTX 5070 Ti with 16GB of GDDR7

Scroll sideways to see every column.

Key specs side by side

The ASUS TUF RTX 5090 leads on video memory at 32GB, ahead of the ASUS TUF 4090 at 24GB. "Not listed" marks cooler thickness where the ASUS TUF RTX 5090 and the ASUS TUF 4090 leave the figure out.

CardGPUVRAMMemoryThickness
ASUS TUF RTX 5090RTX 509032GBGDDR7Not listed
ASUS TUF 4090RTX 409024GBGDDR6XNot listed
ASUS ProArt 5080RTX 508016GBGDDR72.5-slot
Sapphire Nitro+ 7900 XTXRX 7900 XTX24GBGDDR63.5-slot
ASUS TUF 5070 TiRTX 5070 Ti16GBGDDR73.125-slot

Scroll sideways to see every column.

By price at the time of writing

At our last check the cheapest pick, the ASUS TUF 5070 Ti, sat in the $1000 to $1500 tier, 2 tiers in all up to the ASUS TUF RTX 5090 at over $1500; Amazon prices move, so recheck before buying.

Price tierCards
About $1000 to $1500ASUS TUF 5070 Ti, Sapphire Nitro+ 7900 XTX
Over $1500ASUS ProArt 5080, ASUS TUF 4090, ASUS TUF RTX 5090

Frequently Asked Questions

Is the ASUS TUF RTX 5090 ahead of the ASUS TUF 4090 on video memory?

The ASUS TUF RTX 5090 leads at 32GB, with the ASUS TUF 4090 at 24GB. The ASUS TUF 5070 Ti closes the ranking at 16GB.

Which has the slimmest cooler thickness: the ASUS ProArt 5080 or the ASUS TUF 5070 Ti?

The ASUS ProArt 5080 is lowest on cooler thickness at 2.5-slot; the ASUS TUF 5070 Ti follows at 3.125-slot, 20% apart. The spread runs down to the Sapphire Nitro+ 7900 XTX at 3.5-slot. No cooler thickness figure is published for the ASUS TUF RTX 5090 and the ASUS TUF 4090, which leaves 3 of 5 picks ranked here.

Is the ASUS TUF RTX 5090 worth paying more than the ASUS TUF 5070 Ti?

What it brings is video memory (32GB against 16GB). The ASUS TUF 5070 Ti sat in the $1000 to $1500 tier and the ASUS TUF RTX 5090 in the over $1500 tier when we checked, with 3 other picks between them; pay the difference only if video memory decides your purchase.

What makes the ASUS TUF 5070 Ti the Lowest-Cost 16GB Option?

It earns the label for an RTX 5070 Ti with 16GB of GDDR7. It suits 4K with upscaling on a tighter budget.

Do the ASUS TUF RTX 5090 and the ASUS TUF 4090 differ on GPU?

The ASUS TUF RTX 5090 uses RTX 5090; the ASUS TUF 4090 uses RTX 4090; the ASUS ProArt 5080 uses RTX 5080; the Sapphire Nitro+ 7900 XTX uses RX 7900 XTX; the ASUS TUF 5070 Ti uses RTX 5070 Ti.

What should I check before buying the ASUS ProArt 5080?

The ASUS ProArt 5080 occupies 2.5 slots, but no length is published, so check the maker's spec page against your case. Its power connector and recommended PSU are not published, so confirm both for the ASUS ProArt 5080 with the maker. In this guide it ranks third of 5, as our Best Slim RTX 5080 pick, and fourth of 5 on video memory (16GB).

Bottom Line

The ASUS TUF RTX 5090 has the most memory and the highest price at the time of writing. The TUF RTX 4090 is the fallback flagship, the ProArt RTX 5080 suits slimmer cases, the Sapphire Nitro+ RX 7900 XTX avoids the 16-pin plug, and the TUF RTX 5070 Ti is the lowest-cost way to 16GB.

About the author

PC Hardware Editor

Alex covers PC hardware, monitors, components, upgrades and peripherals for The PC Journal, with a focus on helping readers understand specifications, compatibility and meaningful product trade-offs.

Covers: Monitors, Graphics cards, Processors, PC components, Peripherals, Upgrades and compatibility

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