
Radeon HD 7640G + 8670M Dual vs Radeon R7E

Radeon HD 7640G + 8670M Dual
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Radeon R7E
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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. The Radeon HD 7640G + 8670M Dual is positioned at rank #543 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 HD 7640G + 8670M Dual
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon R7E is the superior choice for raw performance. It leads with a 1.3% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7640G + 8670M Dual.
| Insight | Radeon HD 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.3%) | ✅Leading raw performance (+1.3%) |
| Longevity | 🛑Obsolete Architecture (2013 / Legacy) | 🛑Obsolete Architecture (2013 / GCN 1.0 (2012−2020)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The Radeon R7E offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon R7E holds the technical lead. Priced at $49 (vs $150), it costs 67% less, resulting in a 210% higher cost efficiency score.
| Insight | Radeon HD 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+210%) |
| Upfront Cost | ⚠️Higher upfront cost ($150) | ✅More affordable ($49) |
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 + 8670M Dual and Radeon R7E

Radeon HD 7640G + 8670M Dual
The Radeon HD 7640G + 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: 558 points.

Radeon R7E
The Radeon R7E is manufactured by AMD. It was released in December 20 2013. It features the GCN 1.0 architecture. The core clock speed is 800 MHz. It has 512 shading units. The thermal design power (TDP) is 55W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 565 points. Launch price was $109.
Graphics Performance
The Radeon HD 7640G + 8670M Dual scores 558 and the Radeon R7E reaches 565 in the G3D Mark benchmark — just a 1.3% difference, making them near-identical in rasterization performance. Shader units: 768 (Radeon HD 7640G + 8670M Dual) vs 512 (Radeon R7E).
| Feature | Radeon HD 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| G3D Mark Score | 558 | 565+1% |
| Process Node | 28 nm | 28 nm |
| Shading Units | 768+50% | 512 |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| 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 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
Display & API Support
DirectX support: 11_1 (Radeon HD 7640G + 8670M Dual) vs 12_0 (Radeon R7E). Maximum simultaneous displays: 0 vs 0.
| Feature | Radeon HD 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| DirectX | 11_1 | 12_0+9% |
| Max Displays | 0 | 0 |
Media & Encoding
Hardware encoder: UVD 3 (Radeon HD 7640G + 8670M Dual) vs VCE 2.0 (Radeon R7E). Decoder: UVD 3 vs UVD 4.2.
| Feature | Radeon HD 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| Encoder | UVD 3 | VCE 2.0 |
| Decoder | UVD 3 | UVD 4.2 |
Power & Dimensions
The Radeon HD 7640G + 8670M Dual draws 50W versus the Radeon R7E's 55W — a 9.5% difference. The Radeon HD 7640G + 8670M Dual is more power-efficient. Recommended PSU: 350W (Radeon HD 7640G + 8670M Dual) vs 350W (Radeon R7E). Power connectors: 1x 6-pin vs None. Card length: 1mm vs 1mm, occupying 0 vs 0 slots.
| Feature | Radeon HD 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| TDP | 50W-9% | 55W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | None |
| Length | 1mm | 1mm |
| Slots | 0 | 0 |
| Perf/Watt | 11.2+9% | 10.3 |
Value Analysis
The Radeon HD 7640G + 8670M Dual launched at $150 MSRP and currently averages $150, while the Radeon R7E launched at $0 and now averages $49. The Radeon R7E costs 67.3% less ($101 savings) at current market prices. Performance per dollar (G3D Mark / price): 3.7 (Radeon HD 7640G + 8670M Dual) vs 11.5 (Radeon R7E) — the Radeon R7E offers 210.8% better value.
| Feature | Radeon HD 7640G + 8670M Dual | Radeon R7E |
|---|---|---|
| MSRP | $150 | $0-100% |
| Avg Price (30d) | $150 | $49-67% |
| Performance per Dollar | 3.7 | 11.5+211% |
| Codename | — | Cape Verde |
| Release | August 1 2013 | December 20 2013 |
| Ranking | #881 | #738 |
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