Buying Guide
The Best 24GB GPUs
Four graphics cards ranked on video memory and recommended power supply; the ASRock 7900 XTX Phantom Gaming is the cheapest route in.
By The PC Journal editorial team
11 min read4 products evaluated
24GB of VRAM suits large AI models, heavy 3D scenes and 4K textures. Every pick has exactly 24GB, ordered from the lowest price.
Rankings weigh GPU, VRAM and memory as the makers state them; if a maker skips recommended PSU, the guide says so rather than guess, since we have not benched them.
Quick Picks
Our 4 recommendations at a glance. Tap a pick for the full verdict.
Lowest Price Here
ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GB
A lower price than the PowerColor Hellhound 7900 XTX and the rest when we checked.
Best for: Keeping the budget tight.
Our take Check price for ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GB (opens in a new tab)
Also Consider
PowerColor Hellhound AMD Radeon RX 7900 XTX
DisplayPort 2.1 outputs.
Best for: Buyers who want DisplayPort 2.1 outputs.
Our take Check price for PowerColor Hellhound AMD Radeon RX 7900 XTX (opens in a new tab)
Strong Alternative
ASUS TUF Gaming GeForce RTX 4090 OC Edition
Axial-tech fans that ASUS rates for 23% more airflow.
Best for: Buyers who want Axial-tech fans that ASUS rates for 23% more airflow.
Our take Check price for ASUS TUF Gaming GeForce RTX 4090 OC Edition (opens in a new tab)
Premium Pick
MSI GeForce RTX 4090 Gaming X Trio 24G
A TRI FROZR 3 cooler with a copper baseplate at the highest price in the group.
Best for: Buyers for whom price is not the deciding factor.
Our take Check price for MSI GeForce RTX 4090 Gaming X Trio 24G (opens in a new tab)
Our Picks
Lowest Price Here1 of 4
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
- Keeping the budget tight.
Skip if
- Skip it if this is a deal-breaker for you: 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 shares an RX 7900 XTX gpu with the PowerColor Hellhound 7900 XTX; the MSI 4090 Gaming X Trio goes with an RTX 4090 gpu. Like the PowerColor Hellhound 7900 XTX, it has GDDR6 memory, while the ASUS TUF 4090 uses GDDR6X memory.
No other pick in this guide offers a 2615MHz boost clock; compare the ASUS TUF 4090, which has a 2595MHz (OC mode) boost clock. No dimensions are published for the ASRock 7900 XTX Phantom Gaming; get length and thickness from the maker's page first. It cost the least of the 4 picks at the time of writing, with the PowerColor Hellhound 7900 XTX the next step up.
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
- 2615MHz boost clock, the only one here
Cons
- Calls for a 800W or larger PSU
Also Consider2 of 4
PowerColor Hellhound AMD Radeon RX 7900 XTX on Amazon (opens in a new tab)
PowerColor's Hellhound is 320mm long, uses DisplayPort 2.1 outputs and states an 800W minimum power supply.
Best for
- Buyers who want DisplayPort 2.1 outputs.
Skip if
- Choose another pick if you can't accept this: calls for a 800W or larger PSU.
Why we like it
It has 6,144 stream processors and a switch between an OC mode at 2,330MHz and a quieter Silent mode at 2,270MHz game clock. The Silent mode suits a quiet room. It shares an RX 7900 XTX gpu with the ASRock 7900 XTX Phantom Gaming; the MSI 4090 Gaming X Trio goes with an RTX 4090 gpu.
Like the ASRock 7900 XTX Phantom Gaming, it has GDDR6 memory, while the ASUS TUF 4090 uses GDDR6X memory. The PowerColor Hellhound 7900 XTX is 320mm long; compare that with your case's GPU limit. PowerColor Hellhound 7900 XTX: the maker suggests a PSU of 800W or more.
Key dimensions & specs
- GPU: RX 7900 XTX
- VRAM: 24GB
- Memory: GDDR6
- Length: 320mm
- Recommended PSU: 800W
- Outputs: 3 x DisplayPort 2.1, 1 x HDMI 2.1
Pros
- 24GB of VRAM, room for large local AI models as well as games
- DisplayPort 2.1 outputs
- 800W minimum PSU stated by the maker
Cons
- Calls for a 800W or larger PSU
- Costs more than the ASRock 7900 XTX Phantom Gaming at the time of writing
Strong Alternative3 of 4
ASUS TUF Gaming GeForce RTX 4090 OC Edition on Amazon (opens in a new tab)
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 want Axial-tech fans that ASUS rates for 23% more airflow.
Skip if
- Pass if a published recommended power supply matters; this one has none.
Why we like it
It is a large, conservatively styled card built around cooling rather than lighting. It shares an RTX 4090 gpu with the MSI 4090 Gaming X Trio; the PowerColor Hellhound 7900 XTX goes with an RX 7900 XTX gpu. Like the MSI 4090 Gaming X Trio, it has GDDR6X memory, while the ASRock 7900 XTX Phantom Gaming uses GDDR6 memory.
No other pick in this guide offers a 2595MHz (OC mode) boost clock; compare the ASRock 7900 XTX Phantom Gaming, which has a 2615MHz boost clock. No dimensions are published for the ASUS TUF 4090; get length and thickness from the maker's page first. Its power connector and recommended PSU are not published, so confirm both for the ASUS TUF 4090 with the maker. There is no published recommended power supply figure, whereas the ASRock 7900 XTX Phantom Gaming offers 800W.
Key dimensions & 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
Cons
- No published recommended power supply
- Costs more than the ASRock 7900 XTX Phantom Gaming at the time of writing
Premium Pick4 of 4
MSI GeForce RTX 4090 Gaming X Trio 24G on Amazon (opens in a new tab)
The Gaming X Trio pairs a 2595MHz boost with MSI's TRI FROZR 3 cooler, a copper baseplate and TORX Fan 5.0 blades.
Best for
- Buyers for whom price is not the deciding factor.
Skip if
- The maker gives no recommended power supply, so look elsewhere if that figure decides it for you.
Why we like it
It is MSI's mainstream large-cooler take on the RTX 4090. Like the ASUS TUF 4090, it has an RTX 4090 gpu, while the ASRock 7900 XTX Phantom Gaming uses an RX 7900 XTX gpu. It shares GDDR6X memory with the ASUS TUF 4090; the PowerColor Hellhound 7900 XTX goes with GDDR6 memory.
A 2595MHz boost clock is unique to it among these picks, while the ASUS TUF 4090 uses a 2595MHz (OC mode) boost clock. You also get TORX Fan 5.0 blades linked by ring arcs. No dimensions are published for the MSI 4090 Gaming X Trio; 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 ASUS TUF 4090. If video memory is your priority, the ASRock 7900 XTX Phantom Gaming (24GB) is the stronger choice.
Key dimensions & specs
- GPU: RTX 4090
- VRAM: 24GB
- Memory: GDDR6X
- Boost clock: 2595MHz
Pros
- 24GB of VRAM, room for large local AI models as well as games
- TRI FROZR 3 cooler with a copper baseplate
- TORX Fan 5.0 blades linked by ring arcs
- 2595MHz boost clock, the only one here
Cons
- No published recommended power supply
- Costs more than the ASRock 7900 XTX Phantom Gaming at the time of writing
How We Chose
Each pick was assessed across 4 criteria weighted for real-world use.
- Cooling and extras
- We checked cooler design, fan-stop modes, dual BIOS, support brackets and display outputs.
- Fit
- We recorded length and slot thickness where the maker lists them, plus low-profile and SFF-Ready status.
- Power
- We noted the power connector and recommended power supply where listed.
- Price tier
- We grouped picks by price at the time of writing rather than by listed clock speed.
What to Look for in a 24GB GPUs
Key buying criteria so you get the right fit the first time.
Treat 8GB of VRAM as the floor
Some recent games already push past 8GB at high texture settings. Cards with 12GB or 16GB give more room, especially at 1440p and above.
Two versions of the same chip can differ only in memory; check the capacity in the exact model name.
Plan the power connector and PSU
Cards use one or two 8-pin PCIe plugs or a single 16-pin 12V-2x6 plug. Confirm your power supply has the right cables and meets the maker's recommended wattage.
Compare upscaling and encoders
NVIDIA cards support DLSS, AMD cards FSR and Intel cards XeSS. Each game supports a different mix, so check the titles you play.
Streamers should also compare hardware video encoders.
Match the card to your monitor
Resolution and refresh rate decide how much GPU you need. A 1080p screen at 144Hz asks far less than 1440p at 165Hz or 4K.
Buy for the monitor you use now or will buy soon, not for a resolution you may never run.
Pair it with a balanced CPU
A fast card with an old CPU can stall at high frame rates, especially at 1080p. At 4K the GPU does most of the work, so the CPU matters less.
Count the display outputs
Most cards offer three DisplayPort outputs and one HDMI, but some swap that balance. Check that the ports match your monitors, TV or VR headset.
How to Choose a 24GB GPUs
By priority
| Priority | Consider | Why |
|---|---|---|
| Keeping the budget tight | ASRock 7900 XTX Phantom Gaming | A lower price than the PowerColor Hellhound 7900 XTX and the rest when we checked |
| Buyers who want DisplayPort 2.1 outputs | PowerColor Hellhound 7900 XTX | DisplayPort 2.1 outputs |
| Buyers who want Axial-tech fans that ASUS rates for 23% more airflow | ASUS TUF 4090 | Axial-tech fans that ASUS rates for 23% more airflow |
| Buyers for whom price is not the deciding factor | MSI 4090 Gaming X Trio | A TRI FROZR 3 cooler with a copper baseplate at the highest price in the group |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Card | GPU | VRAM | Memory | Recommended PSU |
|---|---|---|---|---|
| ASRock 7900 XTX Phantom Gaming | RX 7900 XTX | 24GB | GDDR6 | 800W |
| PowerColor Hellhound 7900 XTX | RX 7900 XTX | 24GB | GDDR6 | 800W |
| ASUS TUF 4090 | RTX 4090 | 24GB | GDDR6X | Not listed |
| MSI 4090 Gaming X Trio | RTX 4090 | 24GB | GDDR6X | Not listed |
Scroll sideways to see every column.
By price at the time of writing
Prices change often; these tiers reflect Amazon prices when this guide was updated.
| Price tier | Cards |
|---|---|
| About $1000 to $1500 | ASRock 7900 XTX Phantom Gaming, PowerColor Hellhound 7900 XTX |
| Over $1500 | ASUS TUF 4090, MSI 4090 Gaming X Trio |
Frequently Asked Questions
Which pick costs the least here?
The ASRock 7900 XTX Phantom Gaming. It undercut the PowerColor Hellhound 7900 XTX when we checked, while the MSI 4090 Gaming X Trio cost the most of the group.
Do partner cards of the same GPU perform differently?
Only slightly. Factory overclocks add a few percent at most; cooling, noise, size and price differ more.
Do I need a GPU support bracket?
Long, heavy cards can sag and stress the slot. Some come with a support stand or bracket; otherwise one is inexpensive to add.
Is an 8GB graphics card still enough?
For 1080p with tuned texture settings, often yes. For 1440p or high textures in new games, 12GB or 16GB is safer.
Should I choose AMD or NVIDIA?
Compare price and memory at your budget first, then features such as DLSS or FSR support in your games and hardware encoding if you stream.
Bottom Line
Our first pick is the ASRock 7900 XTX Phantom Gaming, chosen for a lower price than the PowerColor Hellhound 7900 XTX and the rest when we checked. Look at the PowerColor Hellhound 7900 XTX for DisplayPort 2.1 outputs, the ASUS TUF 4090 for Axial-tech fans that ASUS rates for 23% more airflow and the MSI 4090 Gaming X Trio for a TRI FROZR 3 cooler with a copper baseplate at the highest price in the group if those matter more to you.
These cards are long and power hungry; check both case clearance and PSU wattage.