GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Only verified data for Radeon RX Vega 64 is available. Benchmarks for other models are currently being processed.
The Radeon RX 6600M is significantly faster than the Radeon RX Vega 64, leading by roughly 36% in our performance index. The Radeon RX 6600M is the cheaper option by $552 CAD.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Radeon RX 6600M vs Radeon RX Vega 64: In-Depth Breakdown
Performance: Radeon RX 6600M vs Radeon RX Vega 64
The Radeon RX 6600M is significantly faster, around 36% ahead of the Radeon RX Vega 64. Both cards sit in the same broad class, well suited to 1080p.
Price & Value
Right now the Radeon RX 6600M starts at $98 CAD against $650 CAD for the Radeon RX Vega 64. The Radeon RX Vega 64 still sits about $151 CAD above its $499 CAD MSRP.
Power & Efficiency
The Radeon RX 6600M draws just 100W versus 295W for the Radeon RX Vega 64, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom. Its more modern RDNA 2 architecture on a TSMC 7nm process is part of why it does more with each watt.
Memory & Bandwidth
The Radeon RX Vega 64's memory is faster — 484 GB/s versus 256 GB/s (2048-bit vs 128-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 6600M is roughly 4 years newer than the Radeon RX Vega 64 (RDNA 2 vs GCN 5.0 (Vega)), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: Radeon RX 6600M or Radeon RX Vega 64?
The Radeon RX 6600M is the faster card by about 36%. 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 6600M better than the Radeon RX Vega 64?
Which is better for 4K gaming, the Radeon RX 6600M or the Radeon RX Vega 64?
Is the Radeon RX Vega 64 worth the extra $552 CAD over the Radeon RX 6600M?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6600M | Radeon RX Vega 64 |
|---|---|---|
| Architecture | RDNA 2 | GCN 5.0 (Vega) |
| Process Node | TSMC 7nm | GloFo 14nm |
| CUDA Cores (Stream Processors / Stream Processors) | 1,792 | 4,096✓ |
| Ray Tracing Cores | 28 | — |
| Tensor / AI Cores | 56 | — |
Clock Speeds
| Specification | Radeon RX 6600M | Radeon RX Vega 64 |
|---|---|---|
| Base Clock | 2,068 MHz✓ | 1,247 MHz |
| Boost Clock | 2,177 MHz✓ | 1,546 MHz |
Memory
| Specification | Radeon RX 6600M | Radeon RX Vega 64 |
|---|---|---|
| VRAM Capacity | 8 GB | 8 GB |
| Memory Type | GDDR6 | HBM2 |
| Memory Bus | 128-bit | 2048-bit✓ |
| Memory Speed | 16 Gbps✓ | 1.89 Gbps |
| Bandwidth | 256 GB/s | 483.8 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6600M | Radeon RX Vega 64 |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 3.0 x16 |
| TDP | 100 W✓ | 295 W |
| Power Connectors | None | 2x 8-pin |
| Released | Jun 2021 | Aug 2017 |