Radeon R6 M255DX vs Radeon HD 7640G + HD 8500M Dual
Radeon R6 M255DX
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Radeon HD 7640G + HD 8500M Dual
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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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
Performance Per Dollar Radeon HD 7640G + HD 8500M Dual
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 7640G + HD 8500M Dual is the superior choice for raw performance. It leads with a 0.3% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon R6 M255DX.
| Insight | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.3%) | ✅Leading raw performance (+0.3%) |
| Longevity | 🛑Obsolete Architecture (2014 / GCN (2012−2015)) | 🛑Obsolete Architecture (2013 / Legacy) |
| 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 | — |
💎 Value Proposition
The Radeon R6 M255DX offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon R6 M255DX holds the technical lead. Priced at $10 (vs $50), it costs 80% less, resulting in a 398.4% higher cost efficiency score.
| Insight | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+398.4%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($10) | ⚠️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 R6 M255DX and Radeon HD 7640G + HD 8500M Dual
Radeon R6 M255DX
The Radeon R6 M255DX is manufactured by AMD. It was released in June 4 2014. It features the GCN architecture. It has 896 shading units. The thermal design power (TDP) is 30W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 605 points.
Radeon HD 7640G + HD 8500M Dual
The Radeon HD 7640G + HD 8500M Dual is manufactured by AMD. It was released in August 1 2013. The core clock speed is 720 / 825 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 607 points.
Graphics Performance
The Radeon R6 M255DX scores 605 and the Radeon HD 7640G + HD 8500M Dual reaches 607 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. Shader units: 896 (Radeon R6 M255DX) vs 640 (Radeon HD 7640G + HD 8500M Dual).
| Feature | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| G3D Mark Score | 605 | 607 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 896+40% | 640 |
Advanced Features (DLSS/FSR)
| Feature | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| 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: 64-bit vs 128-bit.
| Feature | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
Display & API Support
DirectX support: 12_0 (Radeon R6 M255DX) vs 11.1 (Radeon HD 7640G + HD 8500M Dual). Maximum simultaneous displays: 0 vs 2.
| Feature | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| DirectX | 12_0+8% | 11.1 |
| Max Displays | 0 | 2 |
Media & Encoding
Hardware encoder: VCE 2.0 (Radeon R6 M255DX) vs UVD3.2 (Radeon HD 7640G + HD 8500M Dual). Decoder: UVD 4.2 vs UVD3.
| Feature | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| Encoder | VCE 2.0 | UVD3.2 |
| Decoder | UVD 4.2 | UVD3 |
| Codecs | — | H.264,VC-1,MPEG-2,Flash |
Power & Dimensions
The Radeon R6 M255DX draws 30W versus the Radeon HD 7640G + HD 8500M Dual's 50W — a 50% difference. The Radeon R6 M255DX is more power-efficient. Recommended PSU: 350W (Radeon R6 M255DX) vs 350W (Radeon HD 7640G + HD 8500M Dual). Power connectors: PCIe-powered vs 1x 6-pin.
| Feature | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| TDP | 30W-40% | 50W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | 1x 6-pin |
| Length | 1mm | — |
| Slots | 0 | 0 |
| Temp (Load) | — | 80°C |
| Perf/Watt | 20.2+67% | 12.1 |
Value Analysis
The Radeon R6 M255DX launched at $0 MSRP and currently averages $10, while the Radeon HD 7640G + HD 8500M Dual launched at $150 and now averages $50. The Radeon R6 M255DX costs 80% less ($40 savings) at current market prices. Performance per dollar (G3D Mark / price): 60.5 (Radeon R6 M255DX) vs 12.1 (Radeon HD 7640G + HD 8500M Dual) — the Radeon R6 M255DX offers 400% better value. The Radeon R6 M255DX is the newer GPU (2014 vs 2013).
| Feature | Radeon R6 M255DX | Radeon HD 7640G + HD 8500M Dual |
|---|---|---|
| MSRP | $0-100% | $150 |
| Avg Price (30d) | $10-80% | $50 |
| Performance per Dollar | 60.5+400% | 12.1 |
| Release | June 4 2014 | August 1 2013 |
| Ranking | #800 | #863 |
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