Radeon RX 6900 XT vs Radeon RX 7900 GRE
Radeon RX 6900 XT
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Radeon RX 7900 GRE
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Performance Spectrum - GPU
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon RX 6900 XT
Performance Per Dollar Radeon RX 7900 GRE
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon RX 7900 GRE is the superior choice for raw performance. It leads with a 1.6% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon RX 6900 XT.
| Insight | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.6%) | ✅Leading raw performance (+1.6%) |
| Longevity | 🔮Strong Longevity (RDNA 2.0 (2020−2025) / 7nm) | 🏆Elite Architecture (RDNA 3.0 / 5nm) |
| Ecosystem | Supports FSR Upscaling | ✨ FSR 3 / AFMF Support |
| VRAM | 🎮 High Capacity (16 GB) | 🎮 High Capacity (16 GB) |
| Efficiency | Normal Efficiency | 💡 Excellent Perf/Watt |
| Case Fit | Standard Size (267mm) | Standard Size (276mm) |
💎 Value Proposition
The Radeon RX 6900 XT offers a compelling cost-to-performance ratio. Priced at $385 versus $540 for the Radeon RX 7900 GRE, it costs 29% less. While it maintains competitive performance, this results in a 38% higher cost efficiency score.
| Insight | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+38%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($385) | ⚠️Higher upfront cost ($540) |
Performance Check
Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.
Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.
Technical Specifications
Side-by-side comparison of Radeon RX 6900 XT and Radeon RX 7900 GRE
Radeon RX 6900 XT
The Radeon RX 6900 XT is manufactured by AMD. It was released in October 28 2020. It features the RDNA 2.0 architecture. The core clock ranges from 1825 MHz to 2250 MHz. It has 5120 shading units. The thermal design power (TDP) is 300W. Manufactured using 7 nm process technology. It features 80 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 26,729 points. Launch price was $999.
Radeon RX 7900 GRE
The Radeon RX 7900 GRE is manufactured by AMD. It was released in July 27 2023. It features the RDNA 3.0 architecture. The core clock ranges from 1287 MHz to 2245 MHz. It has 5120 shading units. The thermal design power (TDP) is 260W. Manufactured using 5 nm process technology. It features 80 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 27,162 points. Launch price was $549.
Graphics Performance
The Radeon RX 6900 XT scores 26,729 and the Radeon RX 7900 GRE reaches 27,162 in the G3D Mark benchmark — just a 1.6% difference, making them near-identical in rasterization performance. The Radeon RX 6900 XT is built on RDNA 2.0 while the Radeon RX 7900 GRE uses RDNA 3.0, both on 7 nm vs 5 nm. Shader units: 5,120 (Radeon RX 6900 XT) vs 5,120 (Radeon RX 7900 GRE). Raw compute: 23.04 TFLOPS (Radeon RX 6900 XT) vs 45.98 TFLOPS (Radeon RX 7900 GRE). Boost clocks: 2250 MHz vs 2245 MHz. Ray tracing: 80 RT cores (Radeon RX 6900 XT) vs 80 (Radeon RX 7900 GRE).
| Feature | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| G3D Mark Score | 26,729 | 27,162+2% |
| Architecture | RDNA 2.0 | RDNA 3.0 |
| Process Node | 7 nm | 5 nm |
| Shading Units | 5120 | 5120 |
| Compute (TFLOPS) | 23.04 TFLOPS | 45.98 TFLOPS+100% |
| Boost Clock | 2250 MHz | 2245 MHz |
| ROPs | 128 | 160+25% |
| TMUs | 320 | 320 |
| L1 Cache | 1 MB | 2.5 MB+150% |
| L2 Cache | 4 MB | 6 MB+50% |
| Ray Tracing Cores | 80 | 80 |
Advanced Features (DLSS/FSR)
Both cards support modern Frame Generation technology, allowing them to insert intermediate frames to smoothen motion and boost perceived FPS in supported games.
| Feature | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| Upscaling Tech | FSR 3 (Native) | FSR 3 (Native) |
| Frame Generation | FSR 3 / AFMF (Driver) | FSR 3 / AFMF (Driver) |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 16 GB of GDDR6. Memory bandwidth: 512 GB/s (Radeon RX 6900 XT) vs 576 GB/s (Radeon RX 7900 GRE) — a 12.5% advantage for the Radeon RX 7900 GRE. Bus width: 256-bit vs 256-bit. L2 Cache: 4 MB (Radeon RX 6900 XT) vs 6 MB (Radeon RX 7900 GRE) — the Radeon RX 7900 GRE has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| VRAM Capacity | 16 GB | 16 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bandwidth | 512 GB/s | 576 GB/s+13% |
| Bus Width | 256-bit | 256-bit |
| L2 Cache | 4 MB | 6 MB+50% |
Display & API Support
DirectX support: 12 Ultimate (Radeon RX 6900 XT) vs 12 Ultimate (Radeon RX 7900 GRE). Vulkan: 1.3 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| DirectX | 12 Ultimate | 12 Ultimate |
| Vulkan | 1.3 | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: VCN 3.0 (Radeon RX 6900 XT) vs VCN 4.0 (Radeon RX 7900 GRE). Decoder: VCN 3.0 vs VCN 4.0. Supported codecs: H.264,H.265/HEVC,AV1,VP9 (Radeon RX 6900 XT) vs AV1,H.264,H.265/HEVC (Radeon RX 7900 GRE).
| Feature | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| Encoder | VCN 3.0 | VCN 4.0 |
| Decoder | VCN 3.0 | VCN 4.0 |
| Codecs | H.264,H.265/HEVC,AV1,VP9 | AV1,H.264,H.265/HEVC |
Power & Dimensions
The Radeon RX 6900 XT draws 300W versus the Radeon RX 7900 GRE's 260W — a 14.3% difference. The Radeon RX 7900 GRE is more power-efficient. Recommended PSU: 850W (Radeon RX 6900 XT) vs 750W (Radeon RX 7900 GRE). Power connectors: 2x 8-pin vs 2x 8-pin. Card length: 267mm vs 276mm, occupying 2.5 vs 2 slots. Typical load temperature: 80°C vs 60°C.
| Feature | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| TDP | 300W | 260W-13% |
| Recommended PSU | 850W | 750W-12% |
| Power Connector | 2x 8-pin | 2x 8-pin |
| Length | 267mm | 276mm |
| Height | 120mm | 111mm |
| Slots | 2.5 | 2-20% |
| Temp (Load) | 80°C | 60°C-25% |
| Perf/Watt | 89.1 | 104.5+17% |
Value Analysis
The Radeon RX 6900 XT launched at $999 MSRP and currently averages $385, while the Radeon RX 7900 GRE launched at $549 and now averages $540. The Radeon RX 6900 XT costs 28.7% less ($155 savings) at current market prices. Performance per dollar (G3D Mark / price): 69.4 (Radeon RX 6900 XT) vs 50.3 (Radeon RX 7900 GRE) — the Radeon RX 6900 XT offers 38% better value. The Radeon RX 7900 GRE is the newer GPU (2023 vs 2020).
| Feature | Radeon RX 6900 XT | Radeon RX 7900 GRE |
|---|---|---|
| MSRP | $999 | $549-45% |
| Avg Price (30d) | $385-29% | $540 |
| Performance per Dollar | 69.4+38% | 50.3 |
| Codename | Navi 21 | Navi 31 |
| Release | October 28 2020 | July 27 2023 |
| Ranking | #35 | #29 |
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