Radeon RX 6600 XT vs Radeon RX 6800 XT
On raw speed the Radeon RX 6800 XT comes out ahead: far and away the quicker card, about 106% ahead of the Radeon RX 6600 XT. That said, the Radeon RX 6600 XT is the smarter buy on value — $997 AUD less for the performance on offer.
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Radeon RX 6800 XT vs Radeon RX 6600 XT: In-Depth Breakdown
Performance: Radeon RX 6800 XT vs Radeon RX 6600 XT
The Radeon RX 6800 XT is dramatically faster, around 106% ahead of the Radeon RX 6600 XT. That gap is enough to move it up a tier: the Radeon RX 6800 XT is comfortable at 1440p, while the Radeon RX 6600 XT is better matched to 1080p. The Radeon RX 6800 XT packs 4,608 stream processors versus 2,048 on the Radeon RX 6600 XT. The Radeon RX 6800 XT also has more RT cores (72 vs 32), strengthening its ray-tracing and AI-upscaling performance.
Price & Value
The Radeon RX 6600 XT currently lists from $787 AUD, $997 AUD less than the Radeon RX 6800 XT at $1,783 AUD. Despite being slower, the Radeon RX 6600 XT offers the better performance-per-dollar (~10% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6600 XT still sits about $408 AUD above its $379 AUD MSRP. The Radeon RX 6800 XT still sits about $1,134 AUD above its $649 AUD MSRP.
Power & Efficiency
On power, the Radeon RX 6600 XT is the gentler choice at 160W versus 300W. The Radeon RX 6800 XT is more efficient per watt because it's faster, but its higher 300W draw means more heat and a bigger PSU.
VRAM & Future-Proofing
VRAM favors the Radeon RX 6800 XT at 16GB versus 8GB on the Radeon RX 6600 XT — that extra 8GB matters most at 4K, with high-res texture packs, and for content-creation/local-AI work. The Radeon RX 6800 XT's memory is also faster — 512 GB/s versus 256 GB/s (256-bit vs 128-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 6600 XT or Radeon RX 6800 XT?
Choose the Radeon RX 6800 XT if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 6600 XT stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the Radeon RX 6800 XT better than the Radeon RX 6600 XT?
Which is better for 4K gaming, the Radeon RX 6600 XT or the Radeon RX 6800 XT?
Is the Radeon RX 6800 XT worth the extra $997 AUD over the Radeon RX 6600 XT?
Does the Radeon RX 6800 XT have enough VRAM advantage to matter?
Which is better for ray tracing, the Radeon RX 6800 XT or the Radeon RX 6600 XT?
Which should you buy: Radeon RX 6600 XT or Radeon RX 6800 XT?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6600 XT | Radeon RX 6800 XT |
|---|---|---|
| Architecture | RDNA 2 | RDNA 2 |
| Process Node | TSMC N7 | TSMC N7 |
| CUDA Cores (Stream Processors / Stream Processors) | 2,048 | 4,608✓ |
| Ray Tracing Cores | 32 | 72✓ |
Clock Speeds
| Specification | Radeon RX 6600 XT | Radeon RX 6800 XT |
|---|---|---|
| Base Clock | 1,968 MHz✓ | 1,825 MHz |
| Boost Clock | 2,589 MHz✓ | 2,250 MHz |
Memory
| Specification | Radeon RX 6600 XT | Radeon RX 6800 XT |
|---|---|---|
| VRAM Capacity | 8 GB | 16 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 128-bit | 256-bit✓ |
| Memory Speed | 16 Gbps | 16 Gbps |
| Bandwidth | 256 GB/s | 512 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6600 XT | Radeon RX 6800 XT |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| TDP | 160 W✓ | 300 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Jul 2021 | Oct 2020 |