Radeon HD 6990M Crossfire vs GRID M6-8Q
Radeon HD 6990M Crossfire
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GRID M6-8Q
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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. The Radeon HD 6990M Crossfire is positioned at rank 479 and the GRID M6-8Q is on rank 273, so the GRID M6-8Q offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD 6990M Crossfire
Performance Per Dollar GRID M6-8Q
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GRID M6-8Q is the superior choice for raw performance. It leads with a 1.9% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 6990M Crossfire.
| Insight | Radeon HD 6990M Crossfire | GRID M6-8Q |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.9%) | ✅Leading raw performance (+1.9%) |
| Longevity | 🛑Obsolete Architecture (2011 / Terascale 2 (2009−2015)) | 🛑Obsolete Architecture (2015 / Maxwell 2.0 (2014−2019)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GRID M6-8Q offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GRID M6-8Q holds the technical lead. Priced at $100 (vs $150), it costs 33% less, resulting in a 52.9% higher cost efficiency score.
| Insight | Radeon HD 6990M Crossfire | GRID M6-8Q |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+52.9%) |
| Upfront Cost | ⚠️Higher upfront cost ($150) | ✅More affordable ($100) |
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 HD 6990M Crossfire and GRID M6-8Q
Radeon HD 6990M Crossfire
The Radeon HD 6990M Crossfire 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 2240 shading units. The thermal design power (TDP) is 50W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,500 points.
GRID M6-8Q
The GRID M6-8Q is manufactured by NVIDIA. It was released in August 30 2015. It features the Maxwell 2.0 architecture. The core clock speed is 722 MHz. It has 1536 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,568 points.
Graphics Performance
The Radeon HD 6990M Crossfire scores 3,500 and the GRID M6-8Q reaches 3,568 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The Radeon HD 6990M Crossfire is built on Terascale 2 while the GRID M6-8Q uses Maxwell 2.0, both on 40 nm vs 28 nm. Shader units: 2,240 (Radeon HD 6990M Crossfire) vs 1,536 (GRID M6-8Q).
| Feature | Radeon HD 6990M Crossfire | GRID M6-8Q |
|---|---|---|
| G3D Mark Score | 3,500 | 3,568+2% |
| Architecture | Terascale 2 | Maxwell 2.0 |
| Process Node | 40 nm | 28 nm |
| Shading Units | 2240+46% | 1536 |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6990M Crossfire | GRID M6-8Q |
|---|---|---|
| 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 | Standard |
Video Memory (VRAM)
Both cards feature 2 GB of GDDR5. Bus width: 128-bit vs 64-bit.
| Feature | Radeon HD 6990M Crossfire | GRID M6-8Q |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
Display & API Support
DirectX support: 11.0 (Radeon HD 6990M Crossfire) vs 12_1 (GRID M6-8Q). Maximum simultaneous displays: 6 vs 0.
| Feature | Radeon HD 6990M Crossfire | GRID M6-8Q |
|---|---|---|
| DirectX | 11.0 | 12_1+9% |
| Max Displays | 6 | 0 |
Power & Dimensions
The Radeon HD 6990M Crossfire draws 50W versus the GRID M6-8Q's 100W — a 66.7% difference. The Radeon HD 6990M Crossfire is more power-efficient. Recommended PSU: 350W (Radeon HD 6990M Crossfire) vs 350W (GRID M6-8Q). Power connectors: 1x 6-pin vs PCIe-powered. Card length: 0mm vs 1mm, occupying 0 vs 0 slots.
| Feature | Radeon HD 6990M Crossfire | GRID M6-8Q |
|---|---|---|
| TDP | 50W-50% | 100W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | PCIe-powered |
| Length | 0mm | 1mm |
| Height | 0mm | — |
| Slots | 0 | 0 |
| Temp (Load) | 90 | — |
| Perf/Watt | 70.0+96% | 35.7 |
Value Analysis
The Radeon HD 6990M Crossfire launched at $699 MSRP and currently averages $150, while the GRID M6-8Q launched at $1500 and now averages $100. The GRID M6-8Q costs 33.3% less ($50 savings) at current market prices. Performance per dollar (G3D Mark / price): 23.3 (Radeon HD 6990M Crossfire) vs 35.7 (GRID M6-8Q) — the GRID M6-8Q offers 53.2% better value. The GRID M6-8Q is the newer GPU (2015 vs 2011).
| Feature | Radeon HD 6990M Crossfire | GRID M6-8Q |
|---|---|---|
| MSRP | $699-53% | $1500 |
| Avg Price (30d) | $150 | $100-33% |
| Performance per Dollar | 23.3 | 35.7+53% |
| Codename | Blackcomb XTX | GM204 |
| Release | July 12 2011 | August 30 2015 |
| Ranking | #517 | #535 |
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