
Radeon 550X vs Radeon R9 M365X

Radeon 550X
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Radeon R9 M365X
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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 Radeon 550X is positioned at rank 101 and the Radeon R9 M365X is on rank 445, so the Radeon 550X offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon 550X
Performance Per Dollar Radeon R9 M365X
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon 550X uses modern memory architecture. The Radeon 550X likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon R9 M365X lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon R9 M365X is the superior choice for raw performance. It leads with a 0.5% higher G3D Mark score and 700% more VRAM (4 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon 550X.
| Insight | Radeon 550X | Radeon R9 M365X |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.5%) | ✅Leading raw performance (+0.5%) |
| Longevity | GCN 4.0 (2016−2020) (14nm) | 🛑Obsolete Architecture (2015 / GCN 1.0 (2012−2020)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+700%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
The Radeon 550X offers a compelling cost-to-performance ratio. Priced at $45 versus $50 for the Radeon R9 M365X, it costs 10% less. While it maintains basic entry-level capabilities, this results in a 10.6% higher cost efficiency score.
| Insight | Radeon 550X | Radeon R9 M365X |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+10.6%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($45) | ⚠️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 550X and Radeon R9 M365X

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.

Radeon R9 M365X
The Radeon R9 M365X is manufactured by AMD. It was released in May 5 2015. It features the GCN 1.0 architecture. The core clock ranges from 900 MHz to 925 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,482 points.
Graphics Performance
The Radeon 550X scores 1,475 and the Radeon R9 M365X reaches 1,482 in the G3D Mark benchmark — just a 0.5% difference, making them near-identical in rasterization performance. The Radeon 550X is built on GCN 4.0 while the Radeon R9 M365X uses GCN 1.0, both on 14 nm vs 28 nm. Shader units: 512 (Radeon 550X) vs 640 (Radeon R9 M365X). Raw compute: 1.247 TFLOPS (Radeon 550X) vs 1.184 TFLOPS (Radeon R9 M365X). Boost clocks: 1218 MHz vs 925 MHz.
| Feature | Radeon 550X | Radeon R9 M365X |
|---|---|---|
| G3D Mark Score | 1,475 | 1,482 |
| Architecture | GCN 4.0 | GCN 1.0 |
| Process Node | 14 nm | 28 nm |
| Shading Units | 512 | 640+25% |
| Compute (TFLOPS) | 1.247 TFLOPS+5% | 1.184 TFLOPS |
| Boost Clock | 1218 MHz+32% | 925 MHz |
| ROPs | 16 | 16 |
| TMUs | 32 | 40+25% |
| L1 Cache | 128 KB | 160 KB+25% |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon 550X | Radeon R9 M365X |
|---|---|---|
| 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)
The Radeon 550X comes with 512 MB of VRAM, while the Radeon R9 M365X has 4 GB. The Radeon R9 M365X offers 700% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 512 KB (Radeon 550X) vs 256 KB (Radeon R9 M365X) — the Radeon 550X has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon 550X | Radeon R9 M365X |
|---|---|---|
| VRAM Capacity | 0.5 GB | 4 GB+700% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 512 KB+100% | 256 KB |
Power & Dimensions
The Radeon 550X draws 50W versus the Radeon R9 M365X's 75W — a 40% difference. The Radeon 550X is more power-efficient. Recommended PSU: 350W (Radeon 550X) vs 350W (Radeon R9 M365X). Power connectors: None vs Mobile.
| Feature | Radeon 550X | Radeon R9 M365X |
|---|---|---|
| TDP | 50W-33% | 75W |
| Recommended PSU | 350W | 350W |
| Power Connector | None | Mobile |
| Perf/Watt | 29.5+49% | 19.8 |
Value Analysis
The Radeon 550X launched at $109 MSRP and currently averages $45, while the Radeon R9 M365X launched at $250 and now averages $50. The Radeon 550X costs 10% less ($5 savings) at current market prices. Performance per dollar (G3D Mark / price): 32.8 (Radeon 550X) vs 29.6 (Radeon R9 M365X) — the Radeon 550X offers 10.8% better value. The Radeon 550X is the newer GPU (2019 vs 2015).
| Feature | Radeon 550X | Radeon R9 M365X |
|---|---|---|
| MSRP | $109-56% | $250 |
| Avg Price (30d) | $45-10% | $50 |
| Performance per Dollar | 32.8+11% | 29.6 |
| Codename | Lexa | Tropo |
| Release | March 27 2019 | May 5 2015 |
| Ranking | #772 | #769 |
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