Buying Guide

The Best 4K Gaming GPUs

From the ASRock 7900 XT Phantom Gaming to the ASRock 7900 XTX Phantom Gaming: five graphics cards ranked on video memory and GPU, with who should skip each one.

By The PC Journal editorial team

12 min read5 products evaluated

4K gaming needs memory and bandwidth more than raw clock speed, and 16GB is the practical floor for current games. Every pick has 16GB or more of video memory and cost $1,200 or less, ordered from the lowest price.

Our comparison rests on published figures for GPU, VRAM and memory; nothing here was tested in-house, and where a maker leaves out boost clock, we say so.

Quick Picks

Our 5 recommendations at a glance. Tap a pick for the full verdict.

  1. Lowest Price Here

    ASRock Radeon RX 7900 XT Phantom Gaming OC 20GB

    Undercutting the XFX Swift RX 9070 XT on price when we checked.

    Best for: Getting 80MB of Infinity Cache for the least money.

    Our take Check price for ASRock Radeon RX 7900 XT Phantom Gaming OC 20GB (opens in a new tab)

  2. Also Consider

    XFX Swift Radeon RX 9070 XT Triple Fan Gaming Edition

    An XFX SWFT triple-fan cooler.

    Best for: Buyers who want XFX SWFT triple-fan cooler.

    Our take Check price for XFX Swift Radeon RX 9070 XT Triple Fan Gaming Edition (opens in a new tab)

  3. Strong Alternative

    GIGABYTE Radeon RX 9070 XT Gaming OC 16G

    A WINDFORCE cooler with Hawk fans.

    Best for: Buyers who want WINDFORCE cooler with Hawk fans.

    Our take Check price for GIGABYTE Radeon RX 9070 XT Gaming OC 16G (opens in a new tab)

  4. Worth a Look

    Sapphire AMD Radeon RX 7900 XT 20GB

    A USB-C display output.

    Best for: Buyers who want USB-C display output.

    Our take Check price for Sapphire AMD Radeon RX 7900 XT 20GB (opens in a new tab)

  5. Largest Video Memory

    ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GB

    The largest video memory here (24GB).

    Best for: Buyers who put video memory first.

    Our take Check price for ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GB (opens in a new tab)

Our Picks

ASRock Radeon RX 7900 XT Phantom Gaming OC 20GB

Lowest Price Here1 of 5

ASRock Radeon RX 7900 XT Phantom Gaming OC 20GB on Amazon (opens in a new tab)

ASRock's Phantom Gaming OC offers a 2450MHz boost, 80MB of Infinity Cache and two 8-pin power connectors.

Best for

Getting 80MB of Infinity Cache for the least money.

Skip if

Choose another pick if you can't accept this: needs two 8-pin PCIe power cables.

Why we like it

It was the least expensive 7900 XT here at the time of writing. On video memory it ties with the Sapphire 7900 XT at 20GB. It shares an RX 7900 XT gpu with the Sapphire 7900 XT; the XFX Swift RX 9070 XT goes with an RX 9070 XT gpu.

No other pick in this guide offers a 2450MHz boost clock; compare the XFX Swift RX 9070 XT, which has a 2970MHz boost clock. No dimensions are published for the ASRock 7900 XT Phantom Gaming; get length and thickness from the maker's page first. It cost the least of the 5 picks at the time of writing, with the XFX Swift RX 9070 XT the next step up. What it gives up: video memory of 20GB, behind the ASRock 7900 XTX Phantom Gaming (24GB); by contrast, the ASRock 7900 XTX Phantom Gaming offers 24GB.

Key dimensions & specs

  • GPU: RX 7900 XT
  • VRAM: 20GB
  • Memory: GDDR6
  • Power connector: 2 x 8-pin
  • Boost clock: 2450MHz

Pros

  • 20GB of VRAM for high-resolution textures
  • 80MB of Infinity Cache
  • Triple-fan Phantom Gaming cooler
  • 2450MHz boost clock, the only one here

Cons

  • Needs two 8-pin PCIe power cables
  • Video memory of 20GB, behind the ASRock 7900 XTX Phantom Gaming (24GB)
XFX Swift Radeon RX 9070 XT Triple Fan Gaming Edition

Also Consider2 of 5

XFX Swift Radeon RX 9070 XT Triple Fan Gaming Edition on Amazon (opens in a new tab)

XFX's Swift RX 9070 XT uses AMD's top RDNA 4 chip with 16GB of memory and a 2970MHz boost.

Best for

Buyers who want XFX SWFT triple-fan cooler.

Skip if

Price-first buyers should look at the ASRock 7900 XT Phantom Gaming, which cost less when we checked.

Why we like it

It is the card to choose for a 240Hz 1440p monitor. On video memory it ties with the Gigabyte RX 9070 XT Gaming OC at 16GB. It shares an RX 9070 XT gpu with the Gigabyte RX 9070 XT Gaming OC; the ASRock 7900 XTX Phantom Gaming goes with an RX 7900 XTX gpu.

No other pick in this guide offers a 2970MHz boost clock; compare the ASRock 7900 XT Phantom Gaming, which has a 2450MHz boost clock. You also get an XFX SWFT triple-fan cooler. No dimensions are published for the XFX Swift RX 9070 XT; get length and thickness from the maker's page first.

Its power connector and recommended PSU are not published, so confirm both for the XFX Swift RX 9070 XT with the maker. It was priced above the ASRock 7900 XT Phantom Gaming and below the Gigabyte RX 9070 XT Gaming OC at the time of writing.

Key dimensions & specs

  • GPU: RX 9070 XT
  • VRAM: 16GB
  • Memory: GDDR6
  • Boost clock: 2970MHz
  • Outputs: 1 x HDMI, 3 x DisplayPort

Pros

  • 16GB of VRAM for high-resolution textures
  • XFX SWFT triple-fan cooler
  • 2970MHz boost clock, the only one here

Cons

  • Costs more than the ASRock 7900 XT Phantom Gaming at the time of writing
GIGABYTE Radeon RX 9070 XT Gaming OC 16G

Strong Alternative3 of 5

GIGABYTE Radeon RX 9070 XT Gaming OC 16G on Amazon (opens in a new tab)

Gigabyte's RX 9070 XT Gaming OC pairs AMD's top RDNA 4 chip with 16GB of GDDR6 and a WINDFORCE cooler.

Best for

Buyers who want WINDFORCE cooler with Hawk fans.

Skip if

Skip it if video memory matters most to you; the ASRock 7900 XTX Phantom Gaming offers 24GB.

Why we like it

At the time of writing it cost about half as much as the RTX 5080 cards we researched, which makes it the strongest value in the upper tiers. On video memory it ties with the XFX Swift RX 9070 XT at 16GB. It shares an RX 9070 XT gpu with the XFX Swift RX 9070 XT; the Sapphire 7900 XT goes with an RX 7900 XT gpu.

It also offers server-grade thermal conductive gel and RGB lighting. No dimensions are published for the Gigabyte RX 9070 XT Gaming OC; get length and thickness from the maker's page first. Its power connector and recommended PSU are not published, so confirm both for the Gigabyte RX 9070 XT Gaming OC with the maker.

It was priced above the XFX Swift RX 9070 XT and below the Sapphire 7900 XT at the time of writing. It gives ground on video memory, where the ASRock 7900 XTX Phantom Gaming offers 24GB.

Key dimensions & specs

  • GPU: RX 9070 XT
  • VRAM: 16GB
  • Memory: GDDR6

Pros

  • 16GB of VRAM for high-resolution textures
  • WINDFORCE cooler with Hawk fans
  • Server-grade thermal conductive gel
  • RGB lighting

Cons

  • Video memory trails the ASRock 7900 XTX Phantom Gaming (24GB)
  • Costs more than the ASRock 7900 XT Phantom Gaming at the time of writing
Sapphire AMD Radeon RX 7900 XT 20GB

Worth a Look4 of 5

Sapphire AMD Radeon RX 7900 XT 20GB on Amazon (opens in a new tab)

Sapphire's 7900 XT keeps a USB-C display output alongside two DisplayPort and one HDMI port on a 3-slot cooler.

Best for

Buyers who want USB-C display output.

Skip if

Look at the others if this bothers you: its 3-slot cooler covers the slots below.

Why we like it

Its 320-bit memory interface feeds 20GB of VRAM, and it takes three slots. It uses PCIe 4.0 and takes three slots, so check your case clearance. On video memory it ties with the ASRock 7900 XT Phantom Gaming at 20GB.

The Sapphire 7900 XT occupies 3 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 Sapphire 7900 XT with the maker. When we checked, only the Gigabyte RX 9070 XT Gaming OC and cheaper picks cost less, and the ASRock 7900 XTX Phantom Gaming cost more.

Key dimensions & specs

  • GPU: RX 7900 XT
  • VRAM: 20GB
  • Memory: GDDR6
  • Thickness: 3-slot
  • Outputs: 2 x DisplayPort, 1 x HDMI, 1 x USB-C

Pros

  • 20GB of VRAM for high-resolution textures
  • USB-C display output
  • 3-slot reference-style cooler

Cons

  • Its 3-slot cooler covers the slots below
  • Costs more than the ASRock 7900 XT Phantom Gaming at the time of writing
ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GB

Largest Video Memory5 of 5

ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GB on Amazon (opens in a new tab)

ASRock's Phantom Gaming OC offers a 2615MHz boost, 96MB of Infinity Cache and 0dB silent cooling at light load.

Best for

Buyers who put video memory first.

Skip if

Choose another pick if you can't accept this: calls for a 800W or larger PSU.

Why we like it

It was the least expensive 7900 XTX here at the time of writing. It boosts to 2615MHz with 24GB of GDDR6, 96 compute units and 96MB of Infinity Cache. The Phantom Gaming triple-fan cooler sits on a reinforced metal frame.

On video memory it leads this guide at 24GB, ahead of the ASRock 7900 XT Phantom Gaming (20GB). A 2615MHz boost clock is unique to it among these picks, while the XFX Swift RX 9070 XT uses a 2970MHz boost clock. No dimensions are published for the ASRock 7900 XTX Phantom Gaming; get length and thickness from the maker's page first. It was the most expensive pick when we checked, so weigh what it adds over the Sapphire 7900 XT.

Key dimensions & specs

  • GPU: RX 7900 XTX
  • VRAM: 24GB
  • Memory: GDDR6
  • Recommended PSU: 800W
  • Boost clock: 2615MHz

Pros

  • 24GB of VRAM, room for large local AI models as well as games
  • 96MB of Infinity Cache
  • 0dB silent cooling at light load
  • RX 7900 XTX gpu, the only one here

Cons

  • Calls for a 800W or larger PSU
  • Costs more than the ASRock 7900 XT Phantom Gaming at the time of writing

How We Chose

Each pick was assessed across 4 criteria weighted for real-world use.

The figures behind the order
We lined up five cards on GPU, video memory, memory and boost clock, using each maker's published specs. We did not test them in-house.
The shared baseline
All 5, from the ASRock 7900 XT Phantom Gaming to the ASRock 7900 XTX Phantom Gaming, state GPU, video memory and memory and share GDDR6 memory.
Where the specs have gaps
The Gigabyte RX 9070 XT Gaming OC and the Sapphire 7900 XT give no boost clock; the ASRock 7900 XT Phantom Gaming, the Gigabyte RX 9070 XT Gaming OC and the ASRock 7900 XTX Phantom Gaming give no outputs.
Price range
At our last check the picks ran from the ASRock 7900 XT Phantom Gaming ($500 to $1000) to the ASRock 7900 XTX Phantom Gaming ($1000 to $1500).

What to Look for in a 4K Gaming GPUs

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

  1. Video memory

    Here video memory runs from 16GB on the Gigabyte RX 9070 XT Gaming OC to 24GB on the ASRock 7900 XTX Phantom Gaming. For less, the ASRock 7900 XT Phantom Gaming is the runner-up at 20GB.

  2. Boost clock

    The ASRock 7900 XT Phantom Gaming lists 2450MHz; the XFX Swift RX 9070 XT lists 2970MHz; the ASRock 7900 XTX Phantom Gaming lists 2615MHz.

  3. Setup checks

    No dimensions are published for the ASRock 7900 XT Phantom Gaming; get length and thickness from the maker's page first. The Sapphire 7900 XT occupies 3 slots, but no length is published, so check the maker's spec page against your case.

  4. Features beyond the spec table

    The Gigabyte RX 9070 XT Gaming OC: server-grade thermal conductive gel. The Sapphire 7900 XT: a 3-slot reference-style cooler. The ASRock 7900 XTX Phantom Gaming: 0dB silent cooling at light load.

  5. How much to spend

    $500 to $1000 buys the ASRock 7900 XT Phantom Gaming, the XFX Swift RX 9070 XT, the Gigabyte RX 9070 XT Gaming OC and the Sapphire 7900 XT; $1000 to $1500 buys the ASRock 7900 XTX Phantom Gaming at our last check.

How to Choose a 4K Gaming GPUs

By priority

PriorityConsiderWhy
Getting 80MB of Infinity Cache for the least moneyASRock 7900 XT Phantom GamingUndercutting the XFX Swift RX 9070 XT on price when we checked
Buyers who want XFX SWFT triple-fan coolerXFX Swift RX 9070 XTAn XFX SWFT triple-fan cooler
Buyers who want WINDFORCE cooler with Hawk fansGigabyte RX 9070 XT Gaming OCA WINDFORCE cooler with Hawk fans
Buyers who want USB-C display outputSapphire 7900 XTA USB-C display output
Buyers who put video memory firstASRock 7900 XTX Phantom GamingThe largest video memory here (24GB)

Scroll sideways to see every column.

Key specs side by side

The ASRock 7900 XTX Phantom Gaming leads on video memory at 24GB, ahead of the ASRock 7900 XT Phantom Gaming at 20GB. "Not listed" means the maker leaves that figure out.

CardGPUVRAMMemoryBoost clock
ASRock 7900 XT Phantom GamingRX 7900 XT20GBGDDR62450MHz
XFX Swift RX 9070 XTRX 9070 XT16GBGDDR62970MHz
Gigabyte RX 9070 XT Gaming OCRX 9070 XT16GBGDDR6Not listed
Sapphire 7900 XTRX 7900 XT20GBGDDR6Not listed
ASRock 7900 XTX Phantom GamingRX 7900 XTX24GBGDDR62615MHz

Scroll sideways to see every column.

By price at the time of writing

The ASRock 7900 XT Phantom Gaming was the lowest-priced pick and the ASRock 7900 XTX Phantom Gaming the highest when we checked; tiers move with Amazon pricing.

Price tierCards
About $500 to $1000ASRock 7900 XT Phantom Gaming, XFX Swift RX 9070 XT, Gigabyte RX 9070 XT Gaming OC, Sapphire 7900 XT
About $1000 to $1500ASRock 7900 XTX Phantom Gaming

Frequently Asked Questions

How does the ASRock 7900 XT Phantom Gaming compare with the ASRock 7900 XTX Phantom Gaming on video memory?

The ASRock 7900 XTX Phantom Gaming leads at 24GB, with the ASRock 7900 XT Phantom Gaming at 20GB. The Gigabyte RX 9070 XT Gaming OC is at the other end of this group with 16GB.

Is the ASRock 7900 XTX Phantom Gaming worth paying more than the ASRock 7900 XT Phantom Gaming?

On paper it adds video memory (24GB against 20GB). The ASRock 7900 XT Phantom Gaming was the lowest-priced pick when we checked, so pay the difference only if those gains matter to you.

What makes the ASRock 7900 XTX Phantom Gaming the Largest Video Memory?

It earns the label for the largest video memory here (24GB). It suits anyone who put video memory first.

Do the ASRock 7900 XT Phantom Gaming and the XFX Swift RX 9070 XT differ on GPU?

The ASRock 7900 XT Phantom Gaming and the Sapphire 7900 XT use RX 7900 XT; the XFX Swift RX 9070 XT and the Gigabyte RX 9070 XT Gaming OC use RX 9070 XT; the ASRock 7900 XTX Phantom Gaming uses RX 7900 XTX.

What should I check before buying the Gigabyte RX 9070 XT Gaming OC?

No dimensions are published for the Gigabyte RX 9070 XT Gaming OC; get length and thickness from the maker's page first. Its power connector and recommended PSU are not published, so confirm both for the Gigabyte RX 9070 XT Gaming OC with the maker. In this guide it ranks third of 5.

Beyond the specs, what sets the ASRock 7900 XT Phantom Gaming and the XFX Swift RX 9070 XT apart?

The ASRock 7900 XT Phantom Gaming: 80MB of Infinity Cache. The XFX Swift RX 9070 XT: an XFX SWFT triple-fan cooler. The Gigabyte RX 9070 XT Gaming OC: a WINDFORCE cooler with Hawk fans.

Bottom Line

Our first pick is the ASRock 7900 XT Phantom Gaming, chosen for undercutting the XFX Swift RX 9070 XT on price when we checked. Look at the XFX Swift RX 9070 XT for an XFX SWFT triple-fan cooler, the Gigabyte RX 9070 XT Gaming OC for a WINDFORCE cooler with Hawk fans and the Sapphire 7900 XT for a USB-C display output if those matter more to you.

Turn on upscaling at 4K; DLSS or FSR gives a large frame-rate gain for little quality loss.