AMD Radeon RX 6400 vs NVIDIA GeForce RTX 4090
FPS benchmarks across 150 games (reference CPU: r9-9950x3D2), live prices, popularity and community builds.
RX 6400
RDNA 2 · 4 GB GDDR6

Lowest price
$303
FPS / $
1.023
RTX 4090
Ada Lovelace · 24 GB GDDR6X

Lowest price
$4,490
FPS / $
0.143
Our verdict
- The RTX 4090 is on average 94% faster than the RX 6400 at 1440p across our reference games.
- The RX 6400 is currently $4,187 cheaper ($303 vs $4,490).
- With 1.023 FPS/$, the RX 6400 offers the best price-to-performance ratio.
- The RTX 4090 packs more video memory (24 GB vs 4 GB), an advantage for 4K and heavy textures.
Gaming performance
Benchmarks measured with a r9-9950x3D2 to avoid bottlenecking the graphics cards.
FPS / $
The higher the number, the better the performance you get for your money.
Want to see FPS in other games? Explore all our benchmarks
Specifications
| RX 6400 | RTX 4090 | |
|---|---|---|
| Architecture | RDNA 2 | Ada Lovelace |
| Release date | 2022-01 | 2022-10 |
| Video memory | 4 GB | 24 GB |
| Memory type | GDDR6 | GDDR6X |
| Memory bus | 64 bit | 384 bit |
| Bandwidth | 128 GB/s | 1008 GB/s |
| Shading units | 768 | 16384 |
| Boost clock | 2321 MHz | 2520 MHz |
| Power draw (TDP) | 53 W | 450 W |
| Recommended PSU | 350 W | 850 W |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x16 |
| Launch price | $159 | $1599 |
Popularity on DropReference
RX 6400
#63 / 71Number of builds created with this GPU
5
Average build price
$763
Most paired CPUs
Most used power supply

MSI MAG A650BN 650W 80 Plus Bronze Black
650 W · $60
Latest builds
RTX 4090
#36 / 71Number of builds created with this GPU
41
Average build price
$7,729
Most paired CPUs
Most used power supply

EVGA SuperNOVA 1300 P+ 1300W 80 Plus Platinum Fully Modular
1300 W · $270
All models
Real-time prices and stock in your region
RX 6400
2 models trackedFrequently asked questions
Which is the better graphics card, the RX 6400 or the RTX 4090?
The RTX 4090 is on average 94% faster than the RX 6400 at 1440p across our reference games. The RX 6400 is currently $4,187 cheaper ($303 vs $4,490). With 1.023 FPS/$, the RX 6400 offers the best price-to-performance ratio. The RTX 4090 packs more video memory (24 GB vs 4 GB), an advantage for 4K and heavy textures.
Which card should you pick for 1440p gaming: RX 6400 or RTX 4090?
At 1440p, the RX 6400 averages 290 FPS versus 564 FPS for the RTX 4090 across our reference games.
What power supply do you need for the RX 6400?
A power supply of around 350 W is recommended for the RX 6400. On DropReference, the most used PSU with this card is the MSI MAG A650BN 650W 80 Plus Bronze Black.
What power supply do you need for the RTX 4090?
A power supply of around 850 W is recommended for the RTX 4090. On DropReference, the most used PSU with this card is the EVGA SuperNOVA 1300 P+ 1300W 80 Plus Platinum Fully Modular.
Which CPU should you pair with the RX 6400?
In community builds, the CPU most often paired with the RX 6400 is the r5-5500 (1 builds).
Which CPU should you pair with the RTX 4090?
In community builds, the CPU most often paired with the RTX 4090 is the r7-9800x3D (11 builds).
How much does the RX 6400 cost right now?
The RX 6400 is available from $303. We track 2 models in real time.
How much does the RTX 4090 cost right now?
The RTX 4090 is available from $4,490. We track 4 models in real time.
AMD Radeon RX 6400
The AMD Radeon RX 6400 offers entry-level gaming performance with RDNA 2 architecture. Ideal for 1080p gaming with moderate settings, it features 4 GB of GDDR6 memory and excellent price-performance ratio for budget builds.
NVIDIA GeForce RTX 4090
The NVIDIA GeForce RTX 4090, with Ada Lovelace architecture, offers ultra high-end gaming performance with 24 GB of GDDR6X memory. The absolute flagship card of the RTX 4000 series excels at 4K and competes with the best cards of its generation.
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