Radeon RX 6900 XT vs Radeon RX 7900 GRE
Performance-wise the Radeon RX 7900 GRE is out front, marginally faster, roughly 8% up on the Radeon RX 6900 XT. It is also the stronger value pick here, so it's the easy recommendation if your budget allows.
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Comparable or lower specs
Radeon RX 7900 GRE vs Radeon RX 6900 XT: In-Depth Breakdown
Performance: Radeon RX 7900 GRE vs Radeon RX 6900 XT
The Radeon RX 7900 GRE is marginally faster, around 8% ahead of the Radeon RX 6900 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 6900 XT is better matched to 1440p.
Price & Value
Right now the Radeon RX 7900 GRE starts at $799 EUR against $818 EUR for the Radeon RX 6900 XT. Because it's both faster and competitively priced, the Radeon RX 7900 GRE wins on performance-per-dollar by about 10%. The Radeon RX 7900 GRE still sits about $250 EUR above its $549 EUR MSRP. The Radeon RX 6900 XT is trading below its $999 EUR MSRP — a genuine deal.
Power & Efficiency
The Radeon RX 7900 GRE sips power at 260W next to the Radeon RX 6900 XT's 300W, and still leads on performance-per-watt — quieter, cooler, and gentler on your PSU. 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 7900 GRE's memory is faster — 576 GB/s versus 512 GB/s — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 7900 GRE is roughly 4 years newer than the Radeon RX 6900 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 6900 XT or Radeon RX 7900 GRE?
The Radeon RX 7900 GRE is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Radeon RX 6900 XT if you find it at a steep discount.
Frequently Asked Questions
Is the Radeon RX 7900 GRE better than the Radeon RX 6900 XT?
Which is better for 4K gaming, the Radeon RX 6900 XT or the Radeon RX 7900 GRE?
Is the Radeon RX 6900 XT worth the extra $19 EUR over the Radeon RX 7900 GRE?
Which should you buy: Radeon RX 6900 XT or Radeon RX 7900 GRE?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| Process Node | TSMC N7 | TSMC N5 |
| CUDA Cores (Stream Processors / Stream Processors) | 5,120 | 5,120 |
| Ray Tracing Cores | 80 | 80 |
| Tensor / AI Cores | — | 160 |
Clock Speeds
| Specification | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| Base Clock | 1,825 MHz✓ | 1,287 MHz |
| Boost Clock | 2,250 MHz✓ | 2,245 MHz |
Memory
| Specification | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| VRAM Capacity | 16 GB | 16 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit | 256-bit |
| Memory Speed | 16 Gbps | 18 Gbps✓ |
| Bandwidth | 512 GB/s | 576 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 300 W | 260 W✓ |
| Power Connectors | 2x 8-pin | 2x 8-pin |
| Released | Dec 2020 | Feb 2024 |