Radeon RX 6600 XT vs Radeon RX 7700M
The Radeon RX 7700M pulls ahead here — clearly quicker and about 17% quicker than the Radeon RX 6600 XT.
Market Value Leader
Only verified data for Radeon RX 6600 XT is available. Benchmarks for other models are currently being processed.
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Radeon RX 7700M vs Radeon RX 6600 XT: In-Depth Breakdown
Performance: Radeon RX 7700M vs Radeon RX 6600 XT
The Radeon RX 7700M is noticeably faster, around 17% ahead of the Radeon RX 6600 XT. Both cards sit in the same broad class, well suited to 1080p.
Power & Efficiency
Power draw favors the Radeon RX 7700M (120W vs 160W), 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 3 architecture on a TSMC N5 process is part of why it does more with each watt.
Memory & Bandwidth
The Radeon RX 7700M's memory is faster — 288 GB/s versus 256 GB/s — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 7700M is roughly 2 years newer than the Radeon RX 6600 XT (RDNA 3 vs RDNA 2), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: Radeon RX 6600 XT or Radeon RX 7700M?
The Radeon RX 7700M is the faster card by about 17%. Since one of these is a laptop GPU, its listed price covers the whole system rather than just the chip, so it isn't directly comparable — base your decision on the spec differences above.
Frequently Asked Questions
Is the Radeon RX 7700M better than the Radeon RX 6600 XT?
Which is better for 4K gaming, the Radeon RX 6600 XT or the Radeon RX 7700M?
Which should you buy: Radeon RX 6600 XT or Radeon RX 7700M?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6600 XT | Radeon RX 7700M |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| Process Node | TSMC N7 | TSMC N5 |
| CUDA Cores (Stream Processors / Stream Processors) | 2,048 | 2,048 |
| Ray Tracing Cores | 32 | 32 |
| Tensor / AI Cores | — | 64 |
Clock Speeds
| Specification | Radeon RX 6600 XT | Radeon RX 7700M |
|---|---|---|
| Base Clock | 1,968 MHz✓ | 1,800 MHz |
| Boost Clock | 2,589 MHz✓ | 2,300 MHz |
Memory
| Specification | Radeon RX 6600 XT | Radeon RX 7700M |
|---|---|---|
| VRAM Capacity | 8 GB | 8 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 128-bit | 128-bit |
| Memory Speed | 16 Gbps | 18 Gbps✓ |
| Bandwidth | 256 GB/s | 288 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6600 XT | Radeon RX 7700M |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x8 |
| TDP | 160 W | 120 W✓ |
| Power Connectors | 1x 8-pin | — |
| Released | Jul 2021 | Sep 2023 |