Radeon RX 5700 XT vs Radeon RX 6600 XT
Raw performance is basically a wash between the Radeon RX 5700 XT and Radeon RX 6600 XT — the gap is within margin of error.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Radeon RX 5700 XT vs Radeon RX 6600 XT: In-Depth Breakdown
Performance: Radeon RX 5700 XT vs Radeon RX 6600 XT
The Radeon RX 5700 XT and Radeon RX 6600 XT post nearly the same score in our performance index, so neither holds a meaningful raw-speed advantage. Both are best suited to 1080p gaming. The Radeon RX 5700 XT packs 2,560 stream processors versus 2,048 on the Radeon RX 6600 XT.
Power & Efficiency
Power draw favors the Radeon RX 6600 XT (160W vs 225W), and it's the more efficient card too, so it's the easy pick if thermals or a smaller PSU matter. Its more modern RDNA 2 architecture on a TSMC N7 process is part of why it does more with each watt.
Memory & Bandwidth
The Radeon RX 5700 XT's memory is faster — 448 GB/s versus 256 GB/s (256-bit vs 128-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 6600 XT is roughly 2 years newer than the Radeon RX 5700 XT (RDNA 2 vs RDNA), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: Radeon RX 5700 XT or Radeon RX 6600 XT?
The Radeon RX 5700 XT is the faster card. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.
Frequently Asked Questions
Is the Radeon RX 5700 XT better than the Radeon RX 6600 XT?
Which is better for 4K gaming, the Radeon RX 5700 XT or the Radeon RX 6600 XT?
Which should you buy: Radeon RX 5700 XT or Radeon RX 6600 XT?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 5700 XT | Radeon RX 6600 XT |
|---|---|---|
| Architecture | RDNA | RDNA 2 |
| Process Node | TSMC N7 | TSMC N7 |
| CUDA Cores (Stream Processors / Stream Processors) | 2,560✓ | 2,048 |
| Ray Tracing Cores | — | 32 |
Clock Speeds
| Specification | Radeon RX 5700 XT | Radeon RX 6600 XT |
|---|---|---|
| Base Clock | 1,605 MHz | 1,968 MHz✓ |
| Boost Clock | 1,905 MHz | 2,589 MHz✓ |
Memory
| Specification | Radeon RX 5700 XT | Radeon RX 6600 XT |
|---|---|---|
| VRAM Capacity | 8 GB | 8 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit✓ | 128-bit |
| Memory Speed | 14 Gbps | 16 Gbps✓ |
| Bandwidth | 448 GB/s✓ | 256 GB/s |
Connectivity & Power
| Specification | Radeon RX 5700 XT | Radeon RX 6600 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |
| TDP | 225 W | 160 W✓ |
| Power Connectors | 1x 8-pin + 1x 6-pin | 1x 8-pin |
| Released | Jul 2019 | Jul 2021 |