Radeon RX 6600 XT vs Radeon RX Vega 64
The Radeon RX 6600 XT is a big jump in performance β leading the Radeon RX Vega 64 by roughly 29% in our performance index. It also comes out ahead on value, making it the straightforward pick if the price fits your budget.
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Radeon RX 6600 XT vs Radeon RX Vega 64: In-Depth Breakdown
Performance: Radeon RX 6600 XT vs Radeon RX Vega 64
The Radeon RX 6600 XT is significantly faster, around 29% ahead of the Radeon RX Vega 64. Both cards sit in the same broad class, well suited to 1080p.
Price & Value
On price, expect to pay $86,940 JPY for the Radeon RX 6600 XT versus $127,377 JPY for the Radeon RX Vega 64. Because it's both faster and competitively priced, the Radeon RX 6600 XT wins on performance-per-dollar by about 88%. The Radeon RX 6600 XT still sits about $86,561 JPY above its $379 JPY MSRP. The Radeon RX Vega 64 still sits about $126,878 JPY above its $499 JPY MSRP.
Power & Efficiency
The Radeon RX 6600 XT draws just 160W versus 295W for the Radeon RX Vega 64, and it also delivers more performance per watt β so it runs cooler and quieter and needs less PSU headroom. 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 Vega 64's memory is faster β 484 GB/s versus 256 GB/s (2048-bit vs 128-bit bus) β which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 6600 XT 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 6600 XT or Radeon RX Vega 64?
The Radeon RX 6600 XT is the all-round winner here β it's faster and the better value, so buy it if it fits your budget. Only consider the Radeon RX Vega 64 if you find it at a steep discount.
Frequently Asked Questions
Is the Radeon RX 6600 XT better than the Radeon RX Vega 64?
Which is better for 4K gaming, the Radeon RX 6600 XT or the Radeon RX Vega 64?
Is the Radeon RX Vega 64 worth the extra $40,437 JPY over the Radeon RX 6600 XT?
Which should you buy: Radeon RX 6600 XT or Radeon RX Vega 64?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6600 XT | Radeon RX Vega 64 |
|---|---|---|
| Architecture | RDNA 2 | GCN 5.0 (Vega) |
| Process Node | TSMC N7 | GloFo 14nm |
| CUDA Cores (Stream Processors / Stream Processors) | 2,048 | 4,096β |
| Ray Tracing Cores | 32 | β |
Clock Speeds
| Specification | Radeon RX 6600 XT | Radeon RX Vega 64 |
|---|---|---|
| Base Clock | 1,968 MHzβ | 1,247 MHz |
| Boost Clock | 2,589 MHzβ | 1,546 MHz |
Memory
| Specification | Radeon RX 6600 XT | Radeon RX Vega 64 |
|---|---|---|
| VRAM Capacity | 8 GB | 8 GB |
| Memory Type | GDDR6 | HBM2 |
| Memory Bus | 128-bit | 2048-bitβ |
| Memory Speed | 16 Gbpsβ | 1.89 Gbps |
| Bandwidth | 256 GB/s | 483.8 GB/sβ |
Connectivity & Power
| Specification | Radeon RX 6600 XT | Radeon RX Vega 64 |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 3.0 x16 |
| TDP | 160 Wβ | 295 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Jul 2021 | Aug 2017 |