
Radeon RX Vega M GL
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Radeon R9 M390X
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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 RX Vega M GL is positioned at rank 208 and the Radeon R9 M390X is on rank 416, so the Radeon RX Vega M GL offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon RX Vega M GL
Performance Per Dollar Radeon R9 M390X
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon RX Vega M GL uses modern memory architecture. The Radeon RX Vega M GL likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon R9 M390X lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon RX Vega M GL is the superior choice for raw performance. It leads with a 0.3% higher G3D Mark score. However, the Radeon R9 M390X offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon RX Vega M GL | Radeon R9 M390X |
|---|---|---|
| Performance | ✅Leading raw performance (+0.3%) | ❌Lower raw frame rates (-0.3%) |
| Longevity | 🛑Obsolete Architecture (2018 / GCN 4.0 (2016−2020)) | 🛑Obsolete Architecture (2015 / GCN 3.0 (2014−2019)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+100+%) |
| Efficiency | 💡 Excellent Perf/Watt | Normal Efficiency |
| Case Fit | — | — |
💎 Value Proposition
The Radeon R9 M390X offers a compelling cost-to-performance ratio. Priced at $120 versus $150 for the Radeon RX Vega M GL, it costs 20% less. While it maintains basic entry-level capabilities, this results in a 24.6% higher cost efficiency score.
| Insight | Radeon RX Vega M GL | Radeon R9 M390X |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+24.6%) |
| Upfront Cost | ⚠️Higher upfront cost ($150) | ✅More affordable ($120) |
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 RX Vega M GL and Radeon R9 M390X

Radeon RX Vega M GL
The Radeon RX Vega M GL is manufactured by AMD. It was released in February 1 2018. It features the GCN 4.0 architecture. The core clock ranges from 931 MHz to 1011 MHz. It has 1280 shading units. The thermal design power (TDP) is 65W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 3,906 points.

Radeon R9 M390X
The Radeon R9 M390X is manufactured by AMD. It was released in May 5 2015. It features the GCN 3.0 architecture. The core clock speed is 723 MHz. It has 2048 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,895 points.
Graphics Performance
The Radeon RX Vega M GL scores 3,906 and the Radeon R9 M390X reaches 3,895 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The Radeon RX Vega M GL is built on GCN 4.0 while the Radeon R9 M390X uses GCN 3.0, both on 14 nm vs 28 nm. Shader units: 1,280 (Radeon RX Vega M GL) vs 2,048 (Radeon R9 M390X). Raw compute: 2.588 TFLOPS (Radeon RX Vega M GL) vs 2.961 TFLOPS (Radeon R9 M390X).
| Feature | Radeon RX Vega M GL | Radeon R9 M390X |
|---|---|---|
| G3D Mark Score | 3,906 | 3,895 |
| Architecture | GCN 4.0 | GCN 3.0 |
| Process Node | 14 nm | 28 nm |
| Shading Units | 1280 | 2048+60% |
| Compute (TFLOPS) | 2.588 TFLOPS | 2.961 TFLOPS+14% |
| ROPs | 32 | 32 |
| TMUs | 80 | 128+60% |
| L1 Cache | 320 KB | 512 KB+60% |
| L2 Cache | 1 MB+100% | 0.5 MB |
Advanced Features (DLSS/FSR)
| Feature | Radeon RX Vega M GL | Radeon R9 M390X |
|---|---|---|
| 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 RX Vega M GL comes with 0 MB of VRAM, while the Radeon R9 M390X has 4 GB. The Radeon R9 M390X offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 179.2 GB/s (Radeon RX Vega M GL) vs 160 GB/s (Radeon R9 M390X) — a 12% advantage for the Radeon RX Vega M GL. Bus width: 1024-bit vs 256-bit. L2 Cache: 1 MB (Radeon RX Vega M GL) vs 0.5 MB (Radeon R9 M390X) — the Radeon RX Vega M GL has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon RX Vega M GL | Radeon R9 M390X |
|---|---|---|
| VRAM Capacity | Shared System RAM | 4 GB |
| Memory Type | HBM2 | GDDR5 |
| Memory Bandwidth | 179.2 GB/s+12% | 160 GB/s |
| Bus Width | 1024-bit+300% | 256-bit |
| L2 Cache | 1 MB+100% | 0.5 MB |
Power & Dimensions
The Radeon RX Vega M GL draws 65W versus the Radeon R9 M390X's 75W — a 14.3% difference. The Radeon RX Vega M GL is more power-efficient. Recommended PSU: 1W (Radeon RX Vega M GL) vs 350W (Radeon R9 M390X). Power connectors: Integrated vs Mobile.
| Feature | Radeon RX Vega M GL | Radeon R9 M390X |
|---|---|---|
| TDP | 65W-13% | 75W |
| Recommended PSU | 1W-100% | 350W |
| Power Connector | Integrated | Mobile |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | — |
| Temp (Load) | 80 | — |
| Perf/Watt | 60.1+16% | 51.9 |
Value Analysis
The Radeon RX Vega M GL launched at $150 MSRP and currently averages $150, while the Radeon R9 M390X launched at $550 and now averages $120. The Radeon R9 M390X costs 20% less ($30 savings) at current market prices. Performance per dollar (G3D Mark / price): 26.0 (Radeon RX Vega M GL) vs 32.5 (Radeon R9 M390X) — the Radeon R9 M390X offers 25% better value. The Radeon RX Vega M GL is the newer GPU (2018 vs 2015).
| Feature | Radeon RX Vega M GL | Radeon R9 M390X |
|---|---|---|
| MSRP | $150-73% | $550 |
| Avg Price (30d) | $150 | $120-20% |
| Performance per Dollar | 26.0 | 32.5+25% |
| Codename | Polaris 22 | Amethyst |
| Release | February 1 2018 | May 5 2015 |
| Ranking | #500 | #504 |
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