Radeon HD 7640G + 8670M Dual vs GeForce 820A
Radeon HD 7640G + 8670M Dual
Popular choices:
GeForce 820A
Popular choices:
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 + 8670M Dual is positioned at rank 543 and the GeForce 820A is on rank 452, so the GeForce 820A 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 + 8670M Dual
Performance Per Dollar GeForce 820A
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 7640G + 8670M Dual is the superior choice for raw performance. It leads with a 0.4% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce 820A.
| Insight | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| Performance | ✅Leading raw performance (+0.4%) | ❌Lower raw frame rates (-0.4%) |
| Longevity | 🛑Obsolete Architecture (2013 / Legacy) | 🛑Obsolete Architecture (2014 / Maxwell (2014−2017)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
The GeForce 820A offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce 820A holds the technical lead. Priced at $30 (vs $150), it costs 80% less, resulting in a 398.2% higher cost efficiency score.
| Insight | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+398.2%) |
| Upfront Cost | ⚠️Higher upfront cost ($150) | ✅More affordable ($30) |
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 GeForce 820A
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.
GeForce 820A
The GeForce 820A is manufactured by NVIDIA. It was released in July 22 2014. It features the Maxwell architecture. The core clock ranges from 1082 MHz to 1150 MHz. It has 256 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 556 points.
Graphics Performance
The Radeon HD 7640G + 8670M Dual scores 558 and the GeForce 820A reaches 556 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. Shader units: 768 (Radeon HD 7640G + 8670M Dual) vs 256 (GeForce 820A).
| Feature | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| G3D Mark Score | 558 | 556 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 768+200% | 256 |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| 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 512 MB of GDDR5. Bus width: 128-bit vs 128-bit.
| Feature | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
Display & API Support
DirectX support: 11_1 (Radeon HD 7640G + 8670M Dual) vs 12 (11_0) (GeForce 820A). Maximum simultaneous displays: 0 vs 2.
| Feature | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| DirectX | 11_1 | 12 (11_0)+9% |
| Max Displays | 0 | 2 |
Media & Encoding
Hardware encoder: UVD 3 (Radeon HD 7640G + 8670M Dual) vs N/A (GeForce 820A). Decoder: UVD 3 vs PureVideo HD (VP5).
| Feature | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| Encoder | UVD 3 | N/A |
| Decoder | UVD 3 | PureVideo HD (VP5) |
| Codecs | — | H.264,VC-1,MPEG-2 |
Power & Dimensions
The Radeon HD 7640G + 8670M Dual draws 50W versus the GeForce 820A's 33W — a 41% difference. The GeForce 820A is more power-efficient. Recommended PSU: 350W (Radeon HD 7640G + 8670M Dual) vs 350W (GeForce 820A). Power connectors: 1x 6-pin vs Legacy. Card length: 1mm vs 0mm, occupying 0 vs 0 slots.
| Feature | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| TDP | 50W | 33W-34% |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | Legacy |
| Length | 1mm | 0mm |
| Height | — | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | — | 70 |
| Perf/Watt | 11.2 | 16.8+50% |
Value Analysis
The Radeon HD 7640G + 8670M Dual launched at $150 MSRP and currently averages $150, while the GeForce 820A launched at $100 and now averages $30. The GeForce 820A costs 80% less ($120 savings) at current market prices. Performance per dollar (G3D Mark / price): 3.7 (Radeon HD 7640G + 8670M Dual) vs 18.5 (GeForce 820A) — the GeForce 820A offers 400% better value. The GeForce 820A is the newer GPU (2014 vs 2013).
| Feature | Radeon HD 7640G + 8670M Dual | GeForce 820A |
|---|---|---|
| MSRP | $150 | $100-33% |
| Avg Price (30d) | $150 | $30-80% |
| Performance per Dollar | 3.7 | 18.5+400% |
| Codename | — | GM108 |
| Release | August 1 2013 | July 22 2014 |
| Ranking | #881 | #832 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
You May Also Compare
Similar GPU comparisons based on Radeon HD 7640G + 8670M Dual and GeForce 820A
