Is the RTX 4090 worth it over the RTX 4080?

For 4K gaming and GPU compute, the 4090 is clearly faster and has more memory. The 4080 is the better value if you play at 1440p or do lighter work.

What power supply does it need?

Nvidia recommends a power supply of roughly 850W or more for a 4090 system. A quality unit with the right 12VHPWR connector simplifies cabling.

Will it fit in my case?

It is a very large triple-fan card, so check your case's GPU length and slot clearance before buying. A support bracket helps with its weight.

The card comes with its power adapter cabling and documentation in the retail packaging. Check the listing for the exact accessories included.

Is it good for AI and rendering work?

Yes. The 24GB of GDDR6X and 16,384 CUDA cores make it strong for AI models, 3D rendering and video editing, not just gaming.

How does the GIGABYTE GAMING OC differ from other 4090s?

The GPU is the same; the difference is the cooler, factory overclock and board design. GIGABYTE's version is known for a quiet triple-fan cooler.

GIGABYTE GeForce RTX 4090 GAMING OC 24G GDDR6X Graphics Card

Best price now

$4,499.95at WalmartChecked 15 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

GIGABYTE GeForce RTX 4090 GAMING OC 24G GDDR6X Graphics Card

Best price now

$4,499.95at WalmartChecked 15 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Lowest price today: $4,499.95 at Walmart (checked Nov 15, 2026).

Our take on the GIGABYTE GeForce RTX 4090 GAMING OC 24G GDDR6X Graphics Card

The GIGABYTE GeForce RTX 4090 GAMING OC 24G is a flagship graphics card built on Nvidia's Ada Lovelace architecture, with 16,384 CUDA cores and 24GB of GDDR6X memory on a 384-bit bus. It is aimed at 4K gaming, high-refresh 1440p play and GPU-heavy work like rendering and AI, where its raw performance sits at the top of the consumer market. Its triple-fan Windforce cooler is large and heavy, so case clearance and a strong power supply matter more than with mid-range cards. Against rivals, it trades blows with other RTX 4090 models on cooling and noise rather than speed, since the GPU itself is the same; owners praise the frame rates and criticize the size, heat output and power draw.

Best for4K gaming at high frame ratesHigh-refresh 1440p playRendering, video editing and AI workBuyers with a large case and a strong PSU

Pros

Top-tier 4K gaming performance from 16,384 CUDA cores
24GB GDDR6X handles large textures and GPU compute tasks
Triple-fan Windforce cooler keeps the card quiet under load
Three DisplayPort 1.4 and one HDMI 2.1 output
Factory overclock over the reference design

Cons

Very large and heavy; needs a roomy case and support
High power draw demands a strong power supply
Runs hot under sustained load
Costs far more than any other consumer card

GIGABYTE GeForce RTX 4090 GAMING OC 24G GDDR6X Graphics Card prices at every store

WalmartNew
In stockSold by TekdepoReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$4,499.95Free shippingChecked 15 h ago
Visit Walmart

What reviewers say

Owners and reviewers rate the RTX 4090 as the fastest consumer graphics card available, with the GIGABYTE GAMING OC version seen as a solid, quiet cooler design. Complaints center on its physical size, heat and power needs rather than its speed.

What people mention

PerformancePraisedOwners say it handles 4K gaming and GPU work with headroom no other consumer card matches.
CoolingPraisedThe triple-fan Windforce cooler is described as keeping temperatures and noise in check.
SizeCriticisedBuyers warn it is very long and thick and may not fit smaller cases.
Power drawCriticisedReviewers note it needs a strong power supply and pulls a lot of watts under load.
HeatMixedSome owners report noticeable heat dumped into the case during long sessions.
SagCriticisedIts weight leads some owners to add a support bracket to stop the card sagging.

About the GIGABYTE GeForce RTX 4090 GAMING OC 24G GDDR6X Graphics Card

The GIGABYTE GeForce RTX 4090 GAMING OC is a graphics card with 24GB of GDDR6X memory on a 384-bit interface. It has 16384 CUDA cores and connects through a PCI Express 4.0 x16 slot. Its model number is GV-N4090GAMING OC-24GD.

It has one HDMI 2.1 port and three DisplayPort 1.4 ports for video output. The card is ATX form factor.

Model: GV-N4090GAMING OC-24GD
GPU: GeForce RTX 4090
Memory: 24GB GDDR6X, 384-bit
CUDA cores: 16384
Interface: PCI Express 4.0 x16
Ports: 1 x HDMI 2.1, 3 x DisplayPort 1.4
Form factor: ATX
Brand: GIGABYTE

Specifications

color: MulticolorSource
size: 24GBSource

Questions and answers

Is the RTX 4090 worth it over the RTX 4080?: For 4K gaming and GPU compute, the 4090 is clearly faster and has more memory. The 4080 is the better value if you play at 1440p or do lighter work.
What power supply does it need?: Nvidia recommends a power supply of roughly 850W or more for a 4090 system. A quality unit with the right 12VHPWR connector simplifies cabling.
Will it fit in my case?: It is a very large triple-fan card, so check your case's GPU length and slot clearance before buying. A support bracket helps with its weight.
What is in the box?: The card comes with its power adapter cabling and documentation in the retail packaging. Check the listing for the exact accessories included.
Is it good for AI and rendering work?: Yes. The 24GB of GDDR6X and 16,384 CUDA cores make it strong for AI models, 3D rendering and video editing, not just gaming.
How does the GIGABYTE GAMING OC differ from other 4090s?: The GPU is the same; the difference is the cooler, factory overclock and board design. GIGABYTE's version is known for a quiet triple-fan cooler.
Where is the GIGABYTE GeForce RTX 4090 GAMING OC 24G GDDR6X Graphics Card cheapest?: At Walmart, for $4,499.95, as of our latest check.
What do buyers say about the GIGABYTE GeForce RTX 4090 GAMING OC 24G GDDR6X Graphics Card?: Rated 4.2 out of 5 from 5 ratings.