Radeon HD 7670M vs Mobility Radeon HD 3870 X2
Radeon HD 7670M
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Mobility 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 7670M is positioned at rank 325 and the Mobility Radeon HD 3870 X2 is on rank 689, so the Radeon HD 7670M 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 7670M
Performance Per Dollar Mobility Radeon HD 3870 X2
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Mobility Radeon HD 3870 X2 is the superior choice for raw performance. It leads with a 0.4% higher G3D Mark score. However, the Radeon HD 7670M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon HD 7670M | Mobility Radeon HD 3870 X2 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.4%) | ✅Leading raw performance (+0.4%) |
| Longevity | 🛑Obsolete Architecture (2012 / GCN 1.0 (2012−2020)) | 🛑Obsolete Architecture (2008 / TeraScale (2005−2013)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+49900%) | ❌ Less VRAM capacity |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
While current pricing data is unavailable, the Mobility Radeon HD 3870 X2 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 HD 7670M and Mobility Radeon HD 3870 X2
Radeon HD 7670M
The Radeon HD 7670M is manufactured by AMD. It was released in April 24 2012. It features the GCN 1.0 architecture. The core clock speed is 850 MHz. It has 1280 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 476 points.
Mobility Radeon HD 3870 X2
The Mobility Radeon HD 3870 X2 is manufactured by AMD. It was released in September 1 2008. It features the TeraScale architecture. The core clock speed is 660 MHz. It has 320 ×2 shading units. The thermal design power (TDP) is 110W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 478 points.
Graphics Performance
The Radeon HD 7670M scores 476 and the Mobility Radeon HD 3870 X2 reaches 478 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The Radeon HD 7670M is built on GCN 1.0 while the Mobility Radeon HD 3870 X2 uses TeraScale, both on 28 nm vs 55 nm. Shader units: 1,280 (Radeon HD 7670M) vs 320 (Mobility Radeon HD 3870 X2). Raw compute: 2.176 TFLOPS (Radeon HD 7670M) vs 0.4224 TFLOPS ×2 (Mobility Radeon HD 3870 X2).
| Feature | Radeon HD 7670M | Mobility Radeon HD 3870 X2 |
|---|---|---|
| G3D Mark Score | 476 | 478 |
| Architecture | GCN 1.0 | TeraScale |
| Process Node | 28 nm | 55 nm |
| Shading Units | 1280+300% | 320 ×2 |
| Compute (TFLOPS) | 2.176 TFLOPS+415% | 0.4224 TFLOPS ×2 |
| ROPs | 32+100% | 16 ×2 |
| TMUs | 80+400% | 16 ×2 |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7670M | Mobility 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)
The Radeon HD 7670M comes with 1 GB of VRAM, while the Mobility Radeon HD 3870 X2 has 2 MB. The Radeon HD 7670M offers 49900% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 64-bit. L2 Cache: 512 KB (Radeon HD 7670M) vs 256 KB (Mobility Radeon HD 3870 X2) — the Radeon HD 7670M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 7670M | Mobility Radeon HD 3870 X2 |
|---|---|---|
| VRAM Capacity | 1 GB+49900% | 0.002 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 64-bit |
| L2 Cache | 512 KB+100% | 256 KB |
Power & Dimensions
The Radeon HD 7670M draws 100W versus the Mobility Radeon HD 3870 X2's 110W — a 9.5% difference. The Radeon HD 7670M is more power-efficient. Recommended PSU: 350W (Radeon HD 7670M) vs 350W (Mobility Radeon HD 3870 X2). Power connectors: 1x 6-pin vs PCIe-powered.
| Feature | Radeon HD 7670M | Mobility Radeon HD 3870 X2 |
|---|---|---|
| TDP | 100W-9% | 110W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | PCIe-powered |
| Length | — | 1mm |
| Slots | — | 0 |
| Perf/Watt | 4.8+12% | 4.3 |
Value Analysis
The Radeon HD 7670M is the newer GPU (2012 vs 2008).
| Feature | Radeon HD 7670M | Mobility Radeon HD 3870 X2 |
|---|---|---|
| MSRP | — | $449 |
| Avg Price (30d) | — | $50 |
| Codename | Wimbledon | M88 |
| Release | April 24 2012 | September 1 2008 |
| Ranking | #531 | #919 |
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