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 6600 XT is available. Benchmarks for other models are currently being processed.
On raw speed the Radeon RX 6600 XT comes out dramatically faster — about 50% ahead of the Radeon RX Vega 56.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Radeon RX 6600 XT vs Radeon RX Vega 56: In-Depth Breakdown
Performance: Radeon RX 6600 XT vs Radeon RX Vega 56
The Radeon RX 6600 XT is dramatically faster, around 50% ahead of the Radeon RX Vega 56. That gap is enough to move it up a tier: the Radeon RX 6600 XT is comfortable at 1080p, while the Radeon RX Vega 56 is better matched to entry-level 1080p.
Power & Efficiency
At 160W against 210W, the Radeon RX 6600 XT is both the lower-power and the more efficient card, making it the easier build to cool and power. 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 56's memory is faster — 410 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 6600 XT is roughly 4 years newer than the Radeon RX Vega 56 (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 56?
The Radeon RX 6600 XT is the faster card by about 50%. 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 6600 XT better than the Radeon RX Vega 56?
Which is better for 4K gaming, the Radeon RX 6600 XT or the Radeon RX Vega 56?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6600 XT | Radeon RX Vega 56 |
|---|---|---|
| Architecture | RDNA 2 | GCN 5.0 (Vega) |
| Process Node | TSMC N7 | GloFo 14nm |
| CUDA Cores (Stream Processors / Stream Processors) | 2,048 | 3,584✓ |
| Ray Tracing Cores | 32 | — |
Clock Speeds
| Specification | Radeon RX 6600 XT | Radeon RX Vega 56 |
|---|---|---|
| Base Clock | 1,968 MHz✓ | 1,156 MHz |
| Boost Clock | 2,589 MHz✓ | 1,471 MHz |
Memory
| Specification | Radeon RX 6600 XT | Radeon RX Vega 56 |
|---|---|---|
| VRAM Capacity | 8 GB | 8 GB |
| Memory Type | GDDR6 | HBM2 |
| Memory Bus | 128-bit | 2048-bit✓ |
| Memory Speed | 16 Gbps✓ | 1.6 Gbps |
| Bandwidth | 256 GB/s | 409.6 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6600 XT | Radeon RX Vega 56 |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 3.0 x16 |
| TDP | 160 W✓ | 210 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Jul 2021 | Aug 2017 |