Radeon 550X vs Iris Plus Graphics 645
Radeon 550X
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Iris Plus Graphics 645
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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 550X is positioned at rank #101 in our cost-efficiency ranking, representing a Balanced 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 550X
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon 550X is the superior choice for raw performance. It leads with a 1.7% higher G3D Mark score and 100+% more VRAM (512 MB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Iris Plus Graphics 645.
| Insight | Radeon 550X | Iris Plus Graphics 645 |
|---|---|---|
| Performance | ✅Leading raw performance (+1.7%) | ❌Lower raw frame rates (-1.7%) |
| Longevity | GCN 4.0 (2016−2020) (14nm) | Generation 9.5 (2016−2020) (14nm) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100+%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the Radeon 550X remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 550X and Iris Plus Graphics 645
Radeon 550X
The Radeon 550X is manufactured by AMD. It was released in March 27 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 512 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 1,475 points.
Iris Plus Graphics 645
The Iris Plus Graphics 645 is manufactured by Intel. It was released in October 7 2019. It features the Generation 9.5 architecture. The core clock ranges from 300 MHz to 1050 MHz. It has 384 shading units. The thermal design power (TDP) is 15W. Manufactured using 14 nm+++ process technology. G3D Mark benchmark score: 1,450 points.
Graphics Performance
The Radeon 550X scores 1,475 and the Iris Plus Graphics 645 reaches 1,450 in the G3D Mark benchmark — just a 1.7% difference, making them near-identical in rasterization performance. The Radeon 550X is built on GCN 4.0 while the Iris Plus Graphics 645 uses Generation 9.5, both on 14 nm vs 14 nm+++. Shader units: 512 (Radeon 550X) vs 384 (Iris Plus Graphics 645). Raw compute: 1.247 TFLOPS (Radeon 550X) vs 0.8064 TFLOPS (Iris Plus Graphics 645). Boost clocks: 1218 MHz vs 1050 MHz.
| Feature | Radeon 550X | Iris Plus Graphics 645 |
|---|---|---|
| G3D Mark Score | 1,475+2% | 1,450 |
| Architecture | GCN 4.0 | Generation 9.5 |
| Process Node | 14 nm | 14 nm+++ |
| Shading Units | 512+33% | 384 |
| Compute (TFLOPS) | 1.247 TFLOPS+55% | 0.8064 TFLOPS |
| Boost Clock | 1218 MHz+16% | 1050 MHz |
| ROPs | 16+167% | 6 |
| TMUs | 32 | 48+50% |
Advanced Features (DLSS/FSR)
| Feature | Radeon 550X | Iris Plus Graphics 645 |
|---|---|---|
| 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)
The Radeon 550X comes with 512 MB of VRAM, while the Iris Plus Graphics 645 has 0 MB. The Radeon 550X offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs System.
| Feature | Radeon 550X | Iris Plus Graphics 645 |
|---|---|---|
| VRAM Capacity | 0.5 GB | Shared System RAM |
| Memory Type | GDDR5 | Shared |
| Bus Width | 64-bit | System |
Power & Dimensions
The Radeon 550X draws 50W versus the Iris Plus Graphics 645's 15W — a 107.7% difference. The Iris Plus Graphics 645 is more power-efficient. Recommended PSU: 350W (Radeon 550X) vs 1W (Iris Plus Graphics 645). Power connectors: None vs Integrated.
| Feature | Radeon 550X | Iris Plus Graphics 645 |
|---|---|---|
| TDP | 50W | 15W-70% |
| Recommended PSU | 350W | 1W-100% |
| Power Connector | None | Integrated |
| Perf/Watt | 29.5 | 96.7+228% |
Value Analysis
The Radeon 550X launched at $109 MSRP and currently averages $45, while the Iris Plus Graphics 645 launched at $0 and now averages $0. The Iris Plus Graphics 645 costs 100+% less ($45 savings) at current market prices. Performance per dollar (G3D Mark / price): 32.8 (Radeon 550X) vs Infinity (Iris Plus Graphics 645) — the Iris Plus Graphics 645 offers Infinity% better value.
| Feature | Radeon 550X | Iris Plus Graphics 645 |
|---|---|---|
| MSRP | $109 | $0-100% |
| Avg Price (30d) | $45 | $0-100% |
| Performance per Dollar | 32.8 | Infinity |
| Codename | Lexa | Coffee Lake GT3e |
| Release | March 27 2019 | October 7 2019 |
| Ranking | #772 | #720 |
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