Radeon RX 6800 vs Radeon RX 7900M
Radeon RX 6800
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Radeon RX 7900M
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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 6800
Performance Per Dollar Radeon RX 7900M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon RX 7900M is the superior choice for raw performance. It leads with a 1.5% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon RX 6800.
| Insight | Radeon RX 6800 | Radeon RX 7900M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.5%) | ✅Leading raw performance (+1.5%) |
| 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 | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
While current pricing data is unavailable, the Radeon RX 7900M remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 6800 and Radeon RX 7900M
Radeon RX 6800
The Radeon RX 6800 is manufactured by AMD. It was released in October 28 2020. It features the RDNA 2.0 architecture. The core clock ranges from 1700 MHz to 2105 MHz. It has 3840 shading units. The thermal design power (TDP) is 250W. Manufactured using 7 nm process technology. It features 60 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 22,056 points. Launch price was $579.
Radeon RX 7900M
The Radeon RX 7900M is manufactured by AMD. It was released in October 19 2023. It features the RDNA 3.0 architecture. The core clock ranges from 1825 MHz to 2090 MHz. It has 4608 shading units. The thermal design power (TDP) is 180W. Manufactured using 5 nm process technology. It features 72 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 22,385 points.
Graphics Performance
The Radeon RX 6800 scores 22,056 and the Radeon RX 7900M reaches 22,385 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The Radeon RX 6800 is built on RDNA 2.0 while the Radeon RX 7900M uses RDNA 3.0, both on 7 nm vs 5 nm. Shader units: 3,840 (Radeon RX 6800) vs 4,608 (Radeon RX 7900M). Raw compute: 16.17 TFLOPS (Radeon RX 6800) vs 38.52 TFLOPS (Radeon RX 7900M). Boost clocks: 2105 MHz vs 2090 MHz. Ray tracing: 60 RT cores (Radeon RX 6800) vs 72 (Radeon RX 7900M).
| Feature | Radeon RX 6800 | Radeon RX 7900M |
|---|---|---|
| G3D Mark Score | 22,056 | 22,385+1% |
| Architecture | RDNA 2.0 | RDNA 3.0 |
| Process Node | 7 nm | 5 nm |
| Shading Units | 3840 | 4608+20% |
| Compute (TFLOPS) | 16.17 TFLOPS | 38.52 TFLOPS+138% |
| Boost Clock | 2105 MHz | 2090 MHz |
| ROPs | 96 | 192+100% |
| TMUs | 240 | 288+20% |
| L1 Cache | 0.75 MB | 3 MB+300% |
| L2 Cache | 4 MB | 6 MB+50% |
| Ray Tracing Cores | 60 | 72+20% |
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 6800 | Radeon RX 7900M |
|---|---|---|
| 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 6800) vs 576 GB/s (Radeon RX 7900M) — a 12.5% advantage for the Radeon RX 7900M. Bus width: 256-bit vs 256-bit. L2 Cache: 4 MB (Radeon RX 6800) vs 6 MB (Radeon RX 7900M) — the Radeon RX 7900M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon RX 6800 | Radeon RX 7900M |
|---|---|---|
| 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: 12.2 (Radeon RX 6800) vs 12.2 (Radeon RX 7900M). Vulkan: 1.3 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 1.
| Feature | Radeon RX 6800 | Radeon RX 7900M |
|---|---|---|
| DirectX | 12.2 | 12.2 |
| Vulkan | 1.3 | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4+300% | 1 |
Media & Encoding
Hardware encoder: VCN 4.0 (Radeon RX 6800) vs VCN 4.0 (Radeon RX 7900M). Decoder: VCN 4.0 vs VCN 4.0. Supported codecs: MPEG-2,H.264,HEVC,VP9,AV1 (Radeon RX 6800) vs MPEG-2,H.264,HEVC,VP9,AV1 (Radeon RX 7900M).
| Feature | Radeon RX 6800 | Radeon RX 7900M |
|---|---|---|
| Encoder | VCN 4.0 | VCN 4.0 |
| Decoder | VCN 4.0 | VCN 4.0 |
| Codecs | MPEG-2,H.264,HEVC,VP9,AV1 | MPEG-2,H.264,HEVC,VP9,AV1 |
Power & Dimensions
The Radeon RX 6800 draws 250W versus the Radeon RX 7900M's 180W — a 32.6% difference. The Radeon RX 7900M is more power-efficient. Recommended PSU: 650W (Radeon RX 6800) vs 330W (Radeon RX 7900M). Power connectors: 2x 8-pin vs Mobile. Card length: 240mm vs 0mm, occupying 2 vs 0 slots. Typical load temperature: 75°C vs 85°C.
| Feature | Radeon RX 6800 | Radeon RX 7900M |
|---|---|---|
| TDP | 250W | 180W-28% |
| Recommended PSU | 650W | 330W-49% |
| Power Connector | 2x 8-pin | Mobile |
| Length | 240mm | 0mm |
| Height | 111mm | 0mm |
| Slots | 2 | 0-100% |
| Temp (Load) | 75°C-12% | 85°C |
| Perf/Watt | 88.2 | 124.4+41% |
Value Analysis
The Radeon RX 7900M is the newer GPU (2023 vs 2020).
| Feature | Radeon RX 6800 | Radeon RX 7900M |
|---|---|---|
| MSRP | $579 | — |
| Avg Price (30d) | $370 | — |
| Codename | Navi 21 | Navi 31 |
| Release | October 28 2020 | October 19 2023 |
| Ranking | #65 | #62 |
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