Radeon HD 7640G + HD 8570M Dual vs Mobility Radeon HD 3870 X2
Radeon HD 7640G + HD 8570M Dual
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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 7640G + HD 8570M Dual is positioned at rank 578 and the Mobility Radeon HD 3870 X2 is on rank 689, so the Radeon HD 7640G + HD 8570M Dual 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 7640G + HD 8570M Dual
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 0.6% higher G3D Mark score. However, the Radeon HD 7640G + HD 8570M Dual offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon HD 7640G + HD 8570M Dual | Mobility Radeon HD 3870 X2 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.6%) | ✅Leading raw performance (+0.6%) |
| Longevity | 🛑Obsolete Architecture (2013 / Legacy) | 🛑Obsolete Architecture (2008 / TeraScale (2005−2013)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+24900%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
The Radeon HD 7640G + HD 8570M Dual offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 7640G + HD 8570M Dual holds the technical lead. Priced at $40 (vs $50), it costs 20% less, resulting in a 24.2% higher cost efficiency score.
| Insight | Radeon HD 7640G + HD 8570M Dual | Mobility Radeon HD 3870 X2 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+24.2%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($40) | ⚠️Higher upfront cost ($50) |
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 7640G + HD 8570M Dual and Mobility Radeon HD 3870 X2
Radeon HD 7640G + HD 8570M Dual
The Radeon HD 7640G + HD 8570M 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: 475 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 7640G + HD 8570M Dual scores 475 and the Mobility Radeon HD 3870 X2 reaches 478 in the G3D Mark benchmark — just a 0.6% difference, making them near-identical in rasterization performance. Shader units: 768 (Radeon HD 7640G + HD 8570M Dual) vs 320 (Mobility Radeon HD 3870 X2).
| Feature | Radeon HD 7640G + HD 8570M Dual | Mobility Radeon HD 3870 X2 |
|---|---|---|
| G3D Mark Score | 475 | 478 |
| Process Node | 28 nm | 55 nm |
| Shading Units | 768+140% | 320 ×2 |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7640G + HD 8570M Dual | 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 7640G + HD 8570M Dual comes with 512 MB of VRAM, while the Mobility Radeon HD 3870 X2 has 2 MB. The Radeon HD 7640G + HD 8570M Dual offers 24900% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit.
| Feature | Radeon HD 7640G + HD 8570M Dual | Mobility Radeon HD 3870 X2 |
|---|---|---|
| VRAM Capacity | 0.5 GB+24900% | 0.002 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 7640G + HD 8570M Dual) vs 10.1 (Mobility Radeon HD 3870 X2). Maximum simultaneous displays: 2 vs 0.
| Feature | Radeon HD 7640G + HD 8570M Dual | Mobility Radeon HD 3870 X2 |
|---|---|---|
| DirectX | 11.2+11% | 10.1 |
| Max Displays | 2 | 0 |
Media & Encoding
Hardware encoder: None (Radeon HD 7640G + HD 8570M Dual) vs UVD (Mobility Radeon HD 3870 X2). Decoder: UVD 3.0 vs UVD.
| Feature | Radeon HD 7640G + HD 8570M Dual | Mobility Radeon HD 3870 X2 |
|---|---|---|
| Encoder | None | UVD |
| Decoder | UVD 3.0 | UVD |
| Codecs | H.264,VC-1,MPEG-2,MPEG-4 | — |
Power & Dimensions
The Radeon HD 7640G + HD 8570M Dual draws 50W versus the Mobility Radeon HD 3870 X2's 110W — a 75% difference. The Radeon HD 7640G + HD 8570M Dual is more power-efficient. Recommended PSU: 350W (Radeon HD 7640G + HD 8570M Dual) vs 350W (Mobility Radeon HD 3870 X2). Power connectors: 1x 6-pin vs PCIe-powered.
| Feature | Radeon HD 7640G + HD 8570M Dual | Mobility Radeon HD 3870 X2 |
|---|---|---|
| TDP | 50W-55% | 110W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | PCIe-powered |
| Length | — | 1mm |
| Slots | — | 0 |
| Perf/Watt | 9.5+121% | 4.3 |
Value Analysis
The Radeon HD 7640G + HD 8570M Dual launched at $150 MSRP and currently averages $40, while the Mobility Radeon HD 3870 X2 launched at $449 and now averages $50. The Radeon HD 7640G + HD 8570M Dual costs 20% less ($10 savings) at current market prices. Performance per dollar (G3D Mark / price): 11.9 (Radeon HD 7640G + HD 8570M Dual) vs 9.6 (Mobility Radeon HD 3870 X2) — the Radeon HD 7640G + HD 8570M Dual offers 24% better value. The Radeon HD 7640G + HD 8570M Dual is the newer GPU (2013 vs 2008).
| Feature | Radeon HD 7640G + HD 8570M Dual | Mobility Radeon HD 3870 X2 |
|---|---|---|
| MSRP | $150-67% | $449 |
| Avg Price (30d) | $40-20% | $50 |
| Performance per Dollar | 11.9+24% | 9.6 |
| Codename | — | M88 |
| Release | August 1 2013 | September 1 2008 |
| Ranking | #881 | #919 |
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The most powerful gpus ranked by G3D Mark benchmark scores.
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