Radeon HD 7660G + 8670M Dual vs Radeon HD 3870 X2
Radeon HD 7660G + 8670M Dual
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Radeon HD 3870 X2
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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 7660G + 8670M Dual is positioned at rank 529 and the Radeon HD 3870 X2 is on rank 327, so the Radeon HD 3870 X2 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 7660G + 8670M Dual
Performance Per Dollar Radeon HD 3870 X2
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 7660G + 8670M Dual is the superior choice for raw performance. It leads with a 0.2% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 3870 X2.
| Insight | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| Performance | ✅Leading raw performance (+0.2%) | ❌Lower raw frame rates (-0.2%) |
| Longevity | 🛑Obsolete Architecture (2013 / Legacy) | 🛑Obsolete Architecture (2008 / TeraScale (2005−2013)) |
| 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 | Standard Size (267mm) |
💎 Value Proposition
The Radeon HD 7660G + 8670M Dual offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 7660G + 8670M Dual holds the technical lead. Priced at $40 (vs $40), it costs 0% less, resulting in a 0.2% higher cost efficiency score.
| Insight | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+0.2%) | ❌Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 7660G + 8670M Dual and Radeon HD 3870 X2
Radeon HD 7660G + 8670M Dual
The Radeon HD 7660G + 8670M Dual is manufactured by AMD. It was released in August 1 2013. The core clock speed is 720 / 775 MHz. It has 768 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 588 points.
Radeon HD 3870 X2
The Radeon HD 3870 X2 is manufactured by AMD. It was released in August 12 2008. It features the TeraScale architecture. The core clock speed is 700 MHz. It has 800 ×2 shading units. The thermal design power (TDP) is 286W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 587 points. Launch price was $550.
Graphics Performance
The Radeon HD 7660G + 8670M Dual scores 588 and the Radeon HD 3870 X2 reaches 587 in the G3D Mark benchmark — just a 0.2% difference, making them near-identical in rasterization performance. Shader units: 768 (Radeon HD 7660G + 8670M Dual) vs 800 (Radeon HD 3870 X2).
| Feature | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| G3D Mark Score | 588 | 587 |
| Process Node | 28 nm | 55 nm |
| Shading Units | 768 | 800 ×2+4% |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| 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 512 MB of GDDR5. Bus width: 128-bit vs 64-bit.
| Feature | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
Display & API Support
DirectX support: 11_2 (Radeon HD 7660G + 8670M Dual) vs 10.1 (Radeon HD 3870 X2). Maximum simultaneous displays: 0 vs 2.
| Feature | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| DirectX | 11_2+9% | 10.1 |
| Max Displays | 0 | 2 |
Media & Encoding
Hardware encoder: UVD 3 (Radeon HD 7660G + 8670M Dual) vs UVD+ (Radeon HD 3870 X2). Decoder: UVD 3 vs UVD+.
| Feature | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| Encoder | UVD 3 | UVD+ |
| Decoder | UVD 3 | UVD+ |
Power & Dimensions
The Radeon HD 7660G + 8670M Dual draws 50W versus the Radeon HD 3870 X2's 286W — a 140.5% difference. The Radeon HD 7660G + 8670M Dual is more power-efficient. Recommended PSU: 350W (Radeon HD 7660G + 8670M Dual) vs 550W (Radeon HD 3870 X2). Power connectors: 1x 6-pin vs 1x 6-pin + 1x 8-pin. Card length: 1mm vs 267mm, occupying 0 vs 2 slots.
| Feature | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| TDP | 50W-83% | 286W |
| Recommended PSU | 350W-36% | 550W |
| Power Connector | 1x 6-pin | 1x 6-pin + 1x 8-pin |
| Length | 1mm | 267mm |
| Slots | 0-100% | 2 |
| Perf/Watt | 11.8+462% | 2.1 |
Value Analysis
The Radeon HD 7660G + 8670M Dual launched at $150 MSRP and currently averages $40, while the Radeon HD 3870 X2 launched at $449 and now averages $40. Performance per dollar (G3D Mark / price): 14.7 (Radeon HD 7660G + 8670M Dual) vs 14.7 (Radeon HD 3870 X2) — the Radeon HD 3870 X2 offers 0% better value. The Radeon HD 7660G + 8670M Dual is the newer GPU (2013 vs 2008).
| Feature | Radeon HD 7660G + 8670M Dual | Radeon HD 3870 X2 |
|---|---|---|
| MSRP | $150-67% | $449 |
| Avg Price (30d) | $40 | $40 |
| Performance per Dollar | 14.7 | 14.7 |
| Codename | — | R700 |
| Release | August 1 2013 | August 12 2008 |
| Ranking | #881 | #796 |
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The most powerful gpus ranked by G3D Mark benchmark scores.
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