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 Alex Morgan, PC Hardware Editor
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
Which of the 4 picks to look at first. Tap a name for the full analysis.
Lowest Price Here
ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GBA lower price than the PowerColor Hellhound 7900 XTX and the rest when we checked.
Best for: Keeping the cost under $1500.
Check price for ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GB on Amazon (opens in a new tab)
Also Consider
PowerColor Hellhound AMD Radeon RX 7900 XTXDisplayPort 2.1 outputs.
Best for: Buyers who want DisplayPort 2.1 outputs.
Check price for PowerColor Hellhound AMD Radeon RX 7900 XTX on Amazon (opens in a new tab)
Strong Alternative
PNY GeForce RTX 4090 Verto Triple Fan16,384 CUDA cores and up to 1,008GB/s of memory bandwidth.
Best for: Buyers who want 16,384 CUDA cores and up to 1,008GB/s of memory bandwidth.
Check price for PNY GeForce RTX 4090 Verto Triple Fan on Amazon (opens in a new tab)
Premium Pick
ASUS TUF Gaming GeForce RTX 4090 OC EditionAxial-tech fans that ASUS rates for 23% more airflow at the highest price in the group.
Best for: Buyers for whom price is not the deciding factor, since the ASRock 7900 XTX Phantom Gaming costs less.
Check price for ASUS TUF Gaming GeForce RTX 4090 OC Edition on Amazon (opens in a new tab)
Our Picks
Lowest Price Here1 of 4
ASRock Radeon RX 7900 XTX Phantom Gaming OC 24GB
ASRock's Phantom Gaming OC offers a 2615MHz boost, 96MB of Infinity Cache and 0dB silent cooling at light load.
Best for
- Keeping the cost under $1500.
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 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.
It shares an RX 7900 XTX gpu with the PowerColor Hellhound 7900 XTX; the ASUS TUF 4090 goes with an RTX 4090 gpu. Like the PowerColor Hellhound 7900 XTX, it has GDDR6 memory, while the PNY 4090 Verto uses GDDR6X memory. No other pick in this guide offers a 2615MHz boost clock; compare the PNY 4090 Verto, which has a 2520MHz 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 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
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. The card measures 320 x 118.5 x 62mm, so check case clearance first.
It carries 24GB of GDDR6 and 6144 stream processors. It shares an RX 7900 XTX gpu with the ASRock 7900 XTX Phantom Gaming; the ASUS TUF 4090 goes with an RTX 4090 gpu. Like the ASRock 7900 XTX Phantom Gaming, it has GDDR6 memory, while the PNY 4090 Verto 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 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
PNY GeForce RTX 4090 Verto Triple Fan
PNY's Verto runs the RTX 4090 at NVIDIA's reference 2520MHz boost with up to 1,008GB/s of memory bandwidth.
Best for
- Buyers who want 16,384 CUDA cores and up to 1,008GB/s of memory bandwidth.
Skip if
- Pass if a published recommended power supply matters; this one has none.
Why we like it
It cost the least of the RTX 4090 cards here at the time of writing. The 24GB of GDDR6X sits on a 384-bit bus with 1008GB/s of bandwidth, and the card runs a 2520MHz boost clock on a triple-fan cooler. It shares an RTX 4090 gpu with the ASUS TUF 4090; the PowerColor Hellhound 7900 XTX goes with an RX 7900 XTX gpu.
Like the ASUS TUF 4090, it has GDDR6X memory, while the ASRock 7900 XTX Phantom Gaming uses GDDR6 memory. No other pick in this guide offers a 2520MHz boost clock; compare the ASRock 7900 XTX Phantom Gaming, which has a 2615MHz boost clock. No dimensions are published for the PNY 4090 Verto; get length and thickness from the maker's page first. It was priced above the PowerColor Hellhound 7900 XTX and below the ASUS TUF 4090 at the time of writing.
Key specs
- GPU
- RTX 4090
- VRAM
- 24GB
- Memory
- GDDR6X
- Boost clock
- 2520MHz
Pros
- 24GB of VRAM, room for large local AI models as well as games
- 16,384 CUDA cores and up to 1,008GB/s of memory bandwidth
- Reference 2520MHz boost clock
Cons
- No published recommended power supply
- Costs more than the ASRock 7900 XTX Phantom Gaming at the time of writing
The catch
There is no published recommended power supply figure, whereas the ASRock 7900 XTX Phantom Gaming offers 800W.
Premium Pick4 of 4
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 for whom price is not the deciding factor, since the ASRock 7900 XTX Phantom Gaming costs less.
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. Axial-tech fans move up to 23% more air than the previous design, and the OC mode raises the boost clock to 2595MHz. It shares an RTX 4090 gpu with the PNY 4090 Verto; the PowerColor Hellhound 7900 XTX goes with an RX 7900 XTX gpu.
Like the PNY 4090 Verto, 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. Only the PNY 4090 Verto came close to it on price at the time of writing; it cost the most of the 4 picks.
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
- Axial-tech fans that ASUS rates for 23% more airflow at the highest price in the group
Cons
- No published recommended power supply
- Costs more than the ASRock 7900 XTX Phantom Gaming at the time of writing
The catch
It gives ground on video memory, where the ASRock 7900 XTX Phantom Gaming offers 24GB.
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.
- The figures behind the order
- We set side by side four cards on GPU, video memory, memory and recommended power supply from manufacturer specifications. Nothing was tested in-house; 3 of the 5 fields compared are stated for every pick, while recommended power supply and boost clock have gaps.
- What every pick has in common
- All 4, from the ASRock 7900 XTX Phantom Gaming to the ASUS TUF 4090, state GPU, video memory and memory.
- Where the specs have gaps
- The PNY 4090 Verto and the ASUS TUF 4090 give no recommended power supply; the PowerColor Hellhound 7900 XTX gives no boost clock.
- Price range
- At our last check the picks ran from the ASRock 7900 XTX Phantom Gaming ($1000 to $1500) to the ASUS TUF 4090 (over $1500).
What to Look for in a 24GB GPUs
Key buying criteria so you get the right fit the first time.
Memory
The ASRock 7900 XTX Phantom Gaming and the PowerColor Hellhound 7900 XTX list GDDR6; the PNY 4090 Verto and the ASUS TUF 4090 list GDDR6X. Settling memory first narrows 4 picks to 2 or 2.
Boost clock
The ASRock 7900 XTX Phantom Gaming lists 2615MHz; the PNY 4090 Verto lists 2520MHz; the ASUS TUF 4090 lists 2595MHz (OC mode). Sort out boost clock before price: it splits 3 stated picks into groups of 1, 1 and 1.
A graphics card's bare circuit board around the GPU die What to check at home
No dimensions are published for the ASRock 7900 XTX Phantom Gaming; get length and thickness from the maker's page first. The PowerColor Hellhound 7900 XTX is 320mm long; compare that with your case's GPU limit.
Extras that separate them
The PowerColor Hellhound 7900 XTX: an 800W minimum PSU stated by the maker. The PNY 4090 Verto: reference 2520MHz boost clock. The ASUS TUF 4090: a 2595MHz boost clock in OC mode.
Budget
$1000 to $1500 buys the ASRock 7900 XTX Phantom Gaming and the PowerColor Hellhound 7900 XTX; over $1500 buys the PNY 4090 Verto and the ASUS TUF 4090 at our last check.
How to Choose a 24GB GPUs
By priority
| Priority | Consider | Why |
|---|---|---|
| Keeping the cost under $1500 | 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 16,384 CUDA cores and up to 1,008GB/s of memory bandwidth | PNY 4090 Verto | 16,384 CUDA cores and up to 1,008GB/s of memory bandwidth |
| Buyers for whom price is not the deciding factor, since the ASRock 7900 XTX Phantom Gaming costs less | ASUS TUF 4090 | Axial-tech fans that ASUS rates for 23% more airflow at the highest price in the group |
Scroll sideways to see every column.
Key specs side by side
The ASRock 7900 XTX Phantom Gaming, the PowerColor Hellhound 7900 XTX and the rest, as their makers list 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 |
| PNY 4090 Verto | RTX 4090 | 24GB | GDDR6X | Not listed |
| ASUS TUF 4090 | RTX 4090 | 24GB | GDDR6X | Not listed |
Scroll sideways to see every column.
By price at the time of writing
The ASRock 7900 XTX Phantom Gaming was the lowest-priced pick ($1000 to $1500) and the ASUS TUF 4090 the highest (over $1500) when we checked; tiers move with Amazon pricing.
| Price tier | Cards |
|---|---|
| About $1000 to $1500 | ASRock 7900 XTX Phantom Gaming, PowerColor Hellhound 7900 XTX |
| Over $1500 | PNY 4090 Verto, ASUS TUF 4090 |
Frequently Asked Questions
Why is the ASUS TUF 4090 our Premium Pick?
It carries the badge for axial-tech fans that ASUS rates for 23% more airflow at the highest price in the group. The ASRock 7900 XTX Phantom Gaming, the cheapest pick, sat in the $1000 to $1500 tier against over $1500 here, without out-ranking it on any listed spec. It makes sense for buyers for whom price is not the deciding factor, since the ASRock 7900 XTX Phantom Gaming costs less.
Do the ASRock 7900 XTX Phantom Gaming and the PNY 4090 Verto differ on GPU?
The ASRock 7900 XTX Phantom Gaming and the PowerColor Hellhound 7900 XTX use RX 7900 XTX; the PNY 4090 Verto and the ASUS TUF 4090 use RTX 4090.
Will the ASRock 7900 XTX Phantom Gaming work with my setup?
No dimensions are published for the ASRock 7900 XTX Phantom Gaming; get length and thickness from the maker's page first. ASRock 7900 XTX Phantom Gaming: the maker suggests a PSU of 800W or more. In this guide it ranks first of 4, as our Lowest Price Here pick.
What extras do the ASRock 7900 XTX Phantom Gaming and the PowerColor Hellhound 7900 XTX include?
The ASRock 7900 XTX Phantom Gaming: 96MB of Infinity Cache. The PowerColor Hellhound 7900 XTX: DisplayPort 2.1 outputs. The PNY 4090 Verto: 16,384 CUDA cores and up to 1,008GB/s of memory bandwidth.
Who should choose the ASRock 7900 XTX Phantom Gaming?
The ASRock 7900 XTX Phantom Gaming carries our Lowest Price Here label for a lower price than the PowerColor Hellhound 7900 XTX and the rest when we checked. It ranks first of 4 here and sat in the $1000 to $1500 tier at our last price check; it suits keeping the cost under $1500.
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 PNY 4090 Verto for 16,384 CUDA cores and up to 1,008GB/s of memory bandwidth and the ASUS TUF 4090 for Axial-tech fans that ASUS rates for 23% more airflow 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.
Related Guides
- Related guideThe Best Graphics Cards
- Related guideThe Best Graphics Cards for 1440p Gaming
- Related guideThe Best Budget Graphics Cards
- Lower budgetThe Best GPUs Between $280 and $400
- Similar guideThe Best Graphics Cards
- ExplainerHow Much VRAM Do You Need?
- ExplainerGPU Power Connectors Explained
- Check compatibility: power suppliesHow Much PSU Wattage Does Your PC Need?
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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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