AMD Radeon RX 6400 vs AMD Radeon RX 6600
FPS benchmarks across 139 games (reference CPU: r9-9950x3D2), live prices, popularity and community builds.
RX 6400
RDNA 2 · 4 GB GDDR6

Lowest price
185€
FPS / €
1.568
RX 6600
RDNA 2 · 8 GB GDDR6

Lowest price
308€
FPS / €
1.166
Our verdict
- The RX 6600 is on average 22% faster than the RX 6400 at 1440p across our reference games.
- The RX 6400 is currently 123€ cheaper (185€ vs 308€).
- With 1.568 FPS per euro, the RX 6400 offers the best price-to-performance ratio.
- The RX 6600 packs more video memory (8 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 | RX 6600 | |
|---|---|---|
| Architecture | RDNA 2 | RDNA 2 |
| Release date | 2022-01 | 2021-10 |
| Video memory | 4 GB | 8 GB |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 64 bit | 128 bit |
| Bandwidth | 128 GB/s | 224 GB/s |
| Shading units | 768 | 1792 |
| Boost clock | 2321 MHz | 2491 MHz |
| Power draw (TDP) | 53 W | 132 W |
| Recommended PSU | 350 W | 450 W |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x8 |
| Launch price | $159 | $329 |
Popularity on DropReference
RX 6400
#60 / 69Number of builds created with this GPU
8
Average build price
620€
Most paired CPUs
Most used power supply

MSI MAG A650BN 650W 80 Plus Bronze Black
650 W · 50€
RX 6600
#54 / 69Number of builds created with this GPU
45
Average build price
767€
Most paired CPUs
Most used power supply

MSI MAG A550BN Non-Modular 550W 80 Plus Bronze Black
550 W · 49€
All models
Real-time prices and stock in your region
Frequently asked questions
Which is the better graphics card, the RX 6400 or the RX 6600?
The RX 6600 is on average 22% faster than the RX 6400 at 1440p across our reference games. The RX 6400 is currently 123€ cheaper (185€ vs 308€). With 1.568 FPS per euro, the RX 6400 offers the best price-to-performance ratio. The RX 6600 packs more video memory (8 GB vs 4 GB), an advantage for 4K and heavy textures.
Which card should you pick for 1440p gaming: RX 6400 or RX 6600?
At 1440p, the RX 6400 averages 270 FPS versus 330 FPS for the RX 6600 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 RX 6600?
A power supply of around 450 W is recommended for the RX 6600. On DropReference, the most used PSU with this card is the MSI MAG A550BN Non-Modular 550W 80 Plus Bronze Black.
Which CPU should you pair with the RX 6400?
In community builds, the CPU most often paired with the RX 6400 is the r5-3400g (3 builds).
Which CPU should you pair with the RX 6600?
In community builds, the CPU most often paired with the RX 6600 is the r5-5500 (17 builds).
How much does the RX 6400 cost right now?
The RX 6400 is available from 185€. We track 9 models in real time.
How much does the RX 6600 cost right now?
The RX 6600 is available from 308€. We track 19 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.
AMD Radeon RX 6600
The AMD Radeon RX 6600, equipped with RDNA 2 architecture, offers mid-range gaming performance with 8 GB of GDDR6 memory. Excellent for 1080p and 1440p gaming, it supports ray tracing and FidelityFX for optimized graphics.
Other comparisons
RX 6400VS
RX 6500 XT
RX 6400VS
RX 6950 XT
RX 6400VS
RTX 3050
RX 6400VS
RX 7900 GRE
RX 6400VS
Arc A750
RX 6400VS
GTX 1650
RX 6600VS
RTX 5060 Ti 8GB
RX 6600VS
RTX 2060 Super
RX 6600VS
RTX 5060 Ti 16GB
RX 6600VS
Arc A770
RX 6600VS
RTX 2080 Super
RX 6600VS
GTX 1660






























