Iris Plus Graphics 645 vs Radeon 550X
Iris Plus Graphics 645
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Radeon 550X
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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 550X
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 | Iris Plus Graphics 645 | Radeon 550X |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.7%) | ✅Leading raw performance (+1.7%) |
| Longevity | Generation 9.5 (2016−2020) (14nm) | GCN 4.0 (2016−2020) (14nm) |
| 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
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 Iris Plus Graphics 645 and Radeon 550X
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.
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.
Graphics Performance
The Iris Plus Graphics 645 scores 1,450 and the Radeon 550X reaches 1,475 in the G3D Mark benchmark — just a 1.7% difference, making them near-identical in rasterization performance. The Iris Plus Graphics 645 is built on Generation 9.5 while the Radeon 550X uses GCN 4.0, both on 14 nm+++ vs 14 nm. Shader units: 384 (Iris Plus Graphics 645) vs 512 (Radeon 550X). Raw compute: 0.8064 TFLOPS (Iris Plus Graphics 645) vs 1.247 TFLOPS (Radeon 550X). Boost clocks: 1050 MHz vs 1218 MHz.
| Feature | Iris Plus Graphics 645 | Radeon 550X |
|---|---|---|
| G3D Mark Score | 1,450 | 1,475+2% |
| Architecture | Generation 9.5 | GCN 4.0 |
| Process Node | 14 nm+++ | 14 nm |
| Shading Units | 384 | 512+33% |
| Compute (TFLOPS) | 0.8064 TFLOPS | 1.247 TFLOPS+55% |
| Boost Clock | 1050 MHz | 1218 MHz+16% |
| ROPs | 6 | 16+167% |
| TMUs | 48+50% | 32 |
Advanced Features (DLSS/FSR)
| Feature | Iris Plus Graphics 645 | Radeon 550X |
|---|---|---|
| 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 Plus Graphics 645 comes with 0 MB of VRAM, while the Radeon 550X has 512 MB. The Radeon 550X offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 64-bit.
| Feature | Iris Plus Graphics 645 | Radeon 550X |
|---|---|---|
| VRAM Capacity | Shared System RAM | 0.5 GB |
| Memory Type | Shared | GDDR5 |
| Bus Width | System | 64-bit |
Power & Dimensions
The Iris Plus Graphics 645 draws 15W versus the Radeon 550X's 50W — a 107.7% difference. The Iris Plus Graphics 645 is more power-efficient. Recommended PSU: 1W (Iris Plus Graphics 645) vs 350W (Radeon 550X). Power connectors: Integrated vs None.
| Feature | Iris Plus Graphics 645 | Radeon 550X |
|---|---|---|
| TDP | 15W-70% | 50W |
| Recommended PSU | 1W-100% | 350W |
| Power Connector | Integrated | None |
| Perf/Watt | 96.7+228% | 29.5 |
Value Analysis
The Iris Plus Graphics 645 launched at $0 MSRP and currently averages $0, while the Radeon 550X launched at $109 and now averages $45. The Iris Plus Graphics 645 costs 100+% less ($45 savings) at current market prices. Performance per dollar (G3D Mark / price): Infinity (Iris Plus Graphics 645) vs 32.8 (Radeon 550X) — the Iris Plus Graphics 645 offers Infinity% better value.
| Feature | Iris Plus Graphics 645 | Radeon 550X |
|---|---|---|
| MSRP | $0-100% | $109 |
| Avg Price (30d) | $0-100% | $45 |
| Performance per Dollar | Infinity | 32.8 |
| Codename | Coffee Lake GT3e | Lexa |
| Release | October 7 2019 | March 27 2019 |
| Ranking | #720 | #772 |
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