Radeon RX 6650 XT vs Radeon RX 7900 GRE
Performance-wise the Radeon RX 7900 GRE is out front, dramatically faster, roughly 126% up on the Radeon RX 6650 XT.
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Radeon RX 7900 GRE vs Radeon RX 6650 XT: In-Depth Breakdown
Performance: Radeon RX 7900 GRE vs Radeon RX 6650 XT
The Radeon RX 7900 GRE is dramatically faster, around 126% ahead of the Radeon RX 6650 XT. That gap is enough to move it up a tier: the Radeon RX 7900 GRE is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6650 XT is better matched to 1080p. The Radeon RX 7900 GRE packs 5,120 stream processors versus 2,048 on the Radeon RX 6650 XT.
Power & Efficiency
The Radeon RX 6650 XT is the lighter draw at 180W against the Radeon RX 7900 GRE's 260W, making it the easier card to power and cool. The Radeon RX 7900 GRE draws more in absolute terms but squeezes out more performance per watt, so budget for a beefier PSU if you go that route. Its more modern RDNA 3 architecture on a TSMC N5 process is part of why it does more with each watt.
VRAM & Future-Proofing
The Radeon RX 7900 GRE's 16GB (vs 8GB on the Radeon RX 6650 XT) gives it more room for 4K textures and memory-hungry creative or AI workloads. The Radeon RX 7900 GRE's memory is also faster — 576 GB/s versus 280 GB/s (256-bit vs 128-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 7900 GRE is roughly 2 years newer than the Radeon RX 6650 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 6650 XT or Radeon RX 7900 GRE?
The Radeon RX 7900 GRE is the faster card by about 126%. 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 7900 GRE better than the Radeon RX 6650 XT?
Which is better for 4K gaming, the Radeon RX 6650 XT or the Radeon RX 7900 GRE?
Does the Radeon RX 7900 GRE have enough VRAM advantage to matter?
Which should you buy: Radeon RX 6650 XT or Radeon RX 7900 GRE?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6650 XT | Radeon RX 7900 GRE |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| Process Node | TSMC N7 | TSMC N5 |
| CUDA Cores (Stream Processors / Stream Processors) | 2,048 | 5,120✓ |
| Ray Tracing Cores | 32 | 80✓ |
| Tensor / AI Cores | — | 160 |
Clock Speeds
| Specification | Radeon RX 6650 XT | Radeon RX 7900 GRE |
|---|---|---|
| Base Clock | 2,055 MHz✓ | 1,287 MHz |
| Boost Clock | 2,635 MHz✓ | 2,245 MHz |
Memory
| Specification | Radeon RX 6650 XT | Radeon RX 7900 GRE |
|---|---|---|
| VRAM Capacity | 8 GB | 16 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 128-bit | 256-bit✓ |
| Memory Speed | 17.5 Gbps | 18 Gbps✓ |
| Bandwidth | 280 GB/s | 576 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6650 XT | Radeon RX 7900 GRE |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| TDP | 180 W✓ | 260 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | May 2022 | Feb 2024 |