
Iris Pro Graphics P580 vs Radeon R9 M385

Iris Pro Graphics P580
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Radeon R9 M385
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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 Iris Pro Graphics P580 is positioned at rank 326 and the Radeon R9 M385 is on rank 420, so the Iris Pro Graphics P580 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Iris Pro Graphics P580
Performance Per Dollar Radeon R9 M385
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon R9 M385 is the superior choice for raw performance. It leads with a 1.7% higher G3D Mark score and 100+% more VRAM (4 GB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Iris Pro Graphics P580.
| Insight | Iris Pro Graphics P580 | Radeon R9 M385 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.7%) | ✅Leading raw performance (+1.7%) |
| Longevity | 🛑Obsolete Architecture (2015 / Generation 9.0 (2015−2016)) | 🛑Obsolete Architecture (2015 / GCN 2.0 (2013−2017)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+100+%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
The Radeon R9 M385 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon R9 M385 holds the technical lead. Priced at $60 (vs $60), it costs 0% less, resulting in a 1.7% higher cost efficiency score.
| Insight | Iris Pro Graphics P580 | Radeon R9 M385 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+1.7%) |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Iris Pro Graphics P580 and Radeon R9 M385

Iris Pro Graphics P580
The Iris Pro Graphics P580 is manufactured by Intel. It was released in September 1 2015. It features the Generation 9.0 architecture. The core clock ranges from 350 MHz to 1050 MHz. It has 576 shading units. The thermal design power (TDP) is 15W. Manufactured using 14 nm+ process technology. G3D Mark benchmark score: 2,026 points.

Radeon R9 M385
The Radeon R9 M385 is manufactured by AMD. It was released in May 5 2015. It features the GCN 2.0 architecture. The core clock ranges from 900 MHz to 1100 MHz. It has 896 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,061 points.
Graphics Performance
The Iris Pro Graphics P580 scores 2,026 and the Radeon R9 M385 reaches 2,061 in the G3D Mark benchmark — just a 1.7% difference, making them near-identical in rasterization performance. The Iris Pro Graphics P580 is built on Generation 9.0 while the Radeon R9 M385 uses GCN 2.0, both on 14 nm+ vs 28 nm. Shader units: 576 (Iris Pro Graphics P580) vs 896 (Radeon R9 M385). Raw compute: 1.21 TFLOPS (Iris Pro Graphics P580) vs 1.792 TFLOPS (Radeon R9 M385). Boost clocks: 1050 MHz vs 1100 MHz.
| Feature | Iris Pro Graphics P580 | Radeon R9 M385 |
|---|---|---|
| G3D Mark Score | 2,026 | 2,061+2% |
| Architecture | Generation 9.0 | GCN 2.0 |
| Process Node | 14 nm+ | 28 nm |
| Shading Units | 576 | 896+56% |
| Compute (TFLOPS) | 1.21 TFLOPS | 1.792 TFLOPS+48% |
| Boost Clock | 1050 MHz | 1100 MHz+5% |
| ROPs | 9 | 16+78% |
| TMUs | 72+29% | 56 |
Advanced Features (DLSS/FSR)
| Feature | Iris Pro Graphics P580 | Radeon R9 M385 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The Iris Pro Graphics P580 comes with 0 MB of VRAM, while the Radeon R9 M385 has 4 GB. The Radeon R9 M385 offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 128-bit.
| Feature | Iris Pro Graphics P580 | Radeon R9 M385 |
|---|---|---|
| VRAM Capacity | Shared System RAM | 4 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | 96 GB/s |
| Bus Width | System | 128-bit |
Power & Dimensions
The Iris Pro Graphics P580 draws 15W versus the Radeon R9 M385's 75W — a 133.3% difference. The Iris Pro Graphics P580 is more power-efficient. Recommended PSU: 1W (Iris Pro Graphics P580) vs 350W (Radeon R9 M385). Power connectors: Integrated vs Mobile.
| Feature | Iris Pro Graphics P580 | Radeon R9 M385 |
|---|---|---|
| TDP | 15W-80% | 75W |
| Recommended PSU | 1W-100% | 350W |
| Power Connector | Integrated | Mobile |
| Perf/Watt | 135.1+391% | 27.5 |
Value Analysis
The Iris Pro Graphics P580 launched at $150 MSRP and currently averages $60, while the Radeon R9 M385 launched at $300 and now averages $60. Performance per dollar (G3D Mark / price): 33.8 (Iris Pro Graphics P580) vs 34.4 (Radeon R9 M385) — the Radeon R9 M385 offers 1.8% better value.
| Feature | Iris Pro Graphics P580 | Radeon R9 M385 |
|---|---|---|
| MSRP | $150-50% | $300 |
| Avg Price (30d) | $60 | $60 |
| Performance per Dollar | 33.8 | 34.4+2% |
| Codename | Skylake GT4e | Strato |
| Release | September 1 2015 | May 5 2015 |
| Ranking | #678 | #674 |
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