Radeon R9 M390X vs GeForce GTX 775M
Radeon R9 M390X
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GeForce GTX 775M
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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 R9 M390X is positioned at rank 416 and the GeForce GTX 775M is on rank 23, so the GeForce GTX 775M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon R9 M390X
Performance Per Dollar GeForce GTX 775M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon R9 M390X is the superior choice for raw performance. It leads with a 1.5% higher G3D Mark score and 100% more VRAM (4 GB vs 2 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GTX 775M.
| Insight | Radeon R9 M390X | GeForce GTX 775M |
|---|---|---|
| Performance | ✅Leading raw performance (+1.5%) | ❌Lower raw frame rates (-1.5%) |
| Longevity | 🛑Obsolete Architecture (2015 / GCN 3.0 (2014−2019)) | 🛑Obsolete Architecture (2013 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
While current pricing data is unavailable, the Radeon R9 M390X 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 R9 M390X and GeForce GTX 775M
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.
GeForce GTX 775M
The GeForce GTX 775M is manufactured by NVIDIA. It was released in September 24 2013. It features the Kepler architecture. The core clock speed is 719 MHz. It has 1344 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,837 points.
Graphics Performance
The Radeon R9 M390X scores 3,895 and the GeForce GTX 775M reaches 3,837 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The Radeon R9 M390X is built on GCN 3.0 while the GeForce GTX 775M uses Kepler, both on a 28 nm process. Shader units: 2,048 (Radeon R9 M390X) vs 1,344 (GeForce GTX 775M).
| Feature | Radeon R9 M390X | GeForce GTX 775M |
|---|---|---|
| G3D Mark Score | 3,895+2% | 3,837 |
| Architecture | GCN 3.0 | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 2048+52% | 1344 |
Advanced Features (DLSS/FSR)
| Feature | Radeon R9 M390X | GeForce GTX 775M |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 2.1 (Compatible) |
| Frame Generation | Not Supported | FSR 3 (Compatible) |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
The Radeon R9 M390X comes with 4 GB of VRAM, while the GeForce GTX 775M has 2 GB. The Radeon R9 M390X offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 256-bit vs 256-bit.
| Feature | Radeon R9 M390X | GeForce GTX 775M |
|---|---|---|
| VRAM Capacity | 4 GB+100% | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | 160 GB/s | 160 GB/s |
| Bus Width | 256-bit | 256-bit |
Power & Dimensions
The Radeon R9 M390X draws 75W versus the GeForce GTX 775M's 100W — a 28.6% difference. The Radeon R9 M390X is more power-efficient. Recommended PSU: 350W (Radeon R9 M390X) vs 350W (GeForce GTX 775M). Power connectors: Mobile vs 1x 6-pin.
| Feature | Radeon R9 M390X | GeForce GTX 775M |
|---|---|---|
| TDP | 75W-25% | 100W |
| Recommended PSU | 350W | 350W |
| Power Connector | Mobile | 1x 6-pin |
| Length | — | 1mm |
| Slots | — | 0 |
| Perf/Watt | 51.9+35% | 38.4 |
Value Analysis
The Radeon R9 M390X is the newer GPU (2015 vs 2013).
| Feature | Radeon R9 M390X | GeForce GTX 775M |
|---|---|---|
| MSRP | $550 | — |
| Avg Price (30d) | $120 | — |
| Codename | Amethyst | N13E-GTX-A2 |
| Release | May 5 2015 | September 24 2013 |
| Ranking | #504 | #502 |
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