Radeon Ryzen 5 6600U vs Radeon HD 6990M
Radeon Ryzen 5 6600U
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Radeon HD 6990M
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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 Ryzen 5 6600U
Performance Per Dollar Radeon HD 6990M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon Ryzen 5 6600U is significantly newer (2021 vs 2011). The Radeon Ryzen 5 6600U likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon HD 6990M lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon HD 6990M is the superior choice for raw performance. It leads with a 1.8% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon Ryzen 5 6600U.
| Insight | Radeon Ryzen 5 6600U | Radeon HD 6990M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.8%) | ✅Leading raw performance (+1.8%) |
| Longevity | RDNA 2.0 (2020−2025) (7nm) | 🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the Radeon HD 6990M 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 Ryzen 5 6600U and Radeon HD 6990M
Radeon Ryzen 5 6600U
The Radeon Ryzen 5 6600U is manufactured by AMD. It was released in October 13 2021. It features the RDNA 2.0 architecture. The core clock ranges from 1626 MHz to 2491 MHz. It has 1792 shading units. The thermal design power (TDP) is 132W. Manufactured using 7 nm process technology. It features 28 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 3,206 points. Launch price was $329.
Radeon HD 6990M
The Radeon HD 6990M is manufactured by AMD. It was released in July 12 2011. It features the TeraScale 2 architecture. The core clock speed is 715 MHz. It has 1120 shading units. The thermal design power (TDP) is 100W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,264 points.
Graphics Performance
The Radeon Ryzen 5 6600U scores 3,206 and the Radeon HD 6990M reaches 3,264 in the G3D Mark benchmark — just a 1.8% difference, making them near-identical in rasterization performance. The Radeon Ryzen 5 6600U is built on RDNA 2.0 while the Radeon HD 6990M uses TeraScale 2, both on 7 nm vs 40 nm. Shader units: 1,792 (Radeon Ryzen 5 6600U) vs 1,120 (Radeon HD 6990M). Raw compute: 8.928 TFLOPS (Radeon Ryzen 5 6600U) vs 1.602 TFLOPS (Radeon HD 6990M).
| Feature | Radeon Ryzen 5 6600U | Radeon HD 6990M |
|---|---|---|
| G3D Mark Score | 3,206 | 3,264+2% |
| Architecture | RDNA 2.0 | TeraScale 2 |
| Process Node | 7 nm | 40 nm |
| Shading Units | 1792+60% | 1120 |
| Compute (TFLOPS) | 8.928 TFLOPS+457% | 1.602 TFLOPS |
| ROPs | 64+100% | 32 |
| TMUs | 112+100% | 56 |
| L1 Cache | 512 KB+129% | 224 KB |
| L2 Cache | 2 MB+300% | 0.5 MB |
Advanced Features (DLSS/FSR)
| Feature | Radeon Ryzen 5 6600U | Radeon HD 6990M |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 2 GB of Shared. Bus width: System vs System. L2 Cache: 2 MB (Radeon Ryzen 5 6600U) vs 0.5 MB (Radeon HD 6990M) — the Radeon Ryzen 5 6600U has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon Ryzen 5 6600U | Radeon HD 6990M |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | Shared | Shared |
| Memory Bandwidth | System | System |
| Bus Width | System | System |
| L2 Cache | 2 MB+300% | 0.5 MB |
Power & Dimensions
The Radeon Ryzen 5 6600U draws 132W versus the Radeon HD 6990M's 100W — a 27.6% difference. The Radeon HD 6990M is more power-efficient. Recommended PSU: 350W (Radeon Ryzen 5 6600U) vs 350W (Radeon HD 6990M). Power connectors: None vs 1x 6-pin.
| Feature | Radeon Ryzen 5 6600U | Radeon HD 6990M |
|---|---|---|
| TDP | 132W | 100W-24% |
| Recommended PSU | 350W | 350W |
| Power Connector | None | 1x 6-pin |
| Perf/Watt | 24.3 | 32.6+34% |
Value Analysis
The Radeon Ryzen 5 6600U is the newer GPU (2021 vs 2011).
| Feature | Radeon Ryzen 5 6600U | Radeon HD 6990M |
|---|---|---|
| MSRP | $350 | — |
| Avg Price (30d) | $350 | — |
| Codename | Navi 23 | Blackcomb |
| Release | October 13 2021 | July 12 2011 |
| Ranking | #150 | #691 |
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