
Radeon R9 M485X vs T400 4GB

Radeon R9 M485X
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T400 4GB
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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 M485X is positioned at rank 393 and the T400 4GB is on rank 63, so the T400 4GB 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 M485X
Performance Per Dollar T400 4GB
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The T400 4GB uses modern memory architecture. The T400 4GB likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon R9 M485X lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The T400 4GB is the superior choice for raw performance. It leads with a 0.1% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon R9 M485X.
| Insight | Radeon R9 M485X | T400 4GB |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.1%) | ✅Leading raw performance (+0.1%) |
| Longevity | 🛑Obsolete Architecture (2016 / GCN 3.0 (2014−2019)) | Turing (2018−2022) (12nm) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
The T400 4GB offers a compelling cost-to-performance ratio. Priced at $99 versus $150 for the Radeon R9 M485X, it costs 34% less. While it maintains basic entry-level capabilities, this results in a 51.6% higher cost efficiency score.
| Insight | Radeon R9 M485X | T400 4GB |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+51.6%) |
| Upfront Cost | ⚠️Higher upfront cost ($150) | ✅More affordable ($99) |
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 M485X and T400 4GB

Radeon R9 M485X
The Radeon R9 M485X is manufactured by AMD. It was released in May 15 2016. 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 250W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,801 points.
T400 4GB
The T400 4GB is manufactured by an unknown manufacturer. It was released in May 6 2021. It features the Turing architecture. The core clock ranges from 420 MHz to 1425 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 12 nm process technology. G3D Mark benchmark score: 3,803 points.
Graphics Performance
The Radeon R9 M485X scores 3,801 and the T400 4GB reaches 3,803 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The Radeon R9 M485X is built on GCN 3.0 while the T400 4GB uses Turing, both on 28 nm vs 12 nm. Shader units: 2,048 (Radeon R9 M485X) vs 384 (T400 4GB). Raw compute: 2.961 TFLOPS (Radeon R9 M485X) vs 1.094 TFLOPS (T400 4GB).
| Feature | Radeon R9 M485X | T400 4GB |
|---|---|---|
| G3D Mark Score | 3,801 | 3,803 |
| Architecture | GCN 3.0 | Turing |
| Process Node | 28 nm | 12 nm |
| Shading Units | 2048+433% | 384 |
| Compute (TFLOPS) | 2.961 TFLOPS+171% | 1.094 TFLOPS |
| ROPs | 32+100% | 16 |
| TMUs | 128+433% | 24 |
| L1 Cache | 512 KB+33% | 384 KB |
| L2 Cache | 0.5 MB | 1 MB+100% |
Advanced Features (DLSS/FSR)
| Feature | Radeon R9 M485X | T400 4GB |
|---|---|---|
| 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)
Both cards feature 2 GB of GDDR5. Bus width: 128-bit vs 64-bit. L2 Cache: 0.5 MB (Radeon R9 M485X) vs 1 MB (T400 4GB) — the T400 4GB has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon R9 M485X | T400 4GB |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 0.5 MB | 1 MB+100% |
Display & API Support
DirectX support: 12 (Radeon R9 M485X) vs 12_0 (T400 4GB). Maximum simultaneous displays: 4 vs 3.
| Feature | Radeon R9 M485X | T400 4GB |
|---|---|---|
| DirectX | 12 | 12_0 |
| Max Displays | 4+33% | 3 |
Media & Encoding
Hardware encoder: VCE 3.0 (Radeon R9 M485X) vs NVENC 7th Gen (T400 4GB). Decoder: UVD 6.0 vs NVDEC 4th Gen.
| Feature | Radeon R9 M485X | T400 4GB |
|---|---|---|
| Encoder | VCE 3.0 | NVENC 7th Gen |
| Decoder | UVD 6.0 | NVDEC 4th Gen |
| Codecs | H.264,HEVC,VP9 | — |
Power & Dimensions
The Radeon R9 M485X draws 250W versus the T400 4GB's 30W — a 157.1% difference. The T400 4GB is more power-efficient. Recommended PSU: 350W (Radeon R9 M485X) vs 350W (T400 4GB). Power connectors: Mobile vs PCIe-powered.
| Feature | Radeon R9 M485X | T400 4GB |
|---|---|---|
| TDP | 250W | 30W-88% |
| Recommended PSU | 350W | 350W |
| Power Connector | Mobile | PCIe-powered |
| Length | — | 156mm |
| Slots | — | 1 |
| Temp (Load) | 80°C | — |
| Perf/Watt | 15.2 | 126.8+734% |
Value Analysis
The Radeon R9 M485X launched at $450 MSRP and currently averages $150, while the T400 4GB launched at $159 and now averages $99. The T400 4GB costs 34% less ($51 savings) at current market prices. Performance per dollar (G3D Mark / price): 25.3 (Radeon R9 M485X) vs 38.4 (T400 4GB) — the T400 4GB offers 51.8% better value. The T400 4GB is the newer GPU (2021 vs 2016).
| Feature | Radeon R9 M485X | T400 4GB |
|---|---|---|
| MSRP | $450 | $159-65% |
| Avg Price (30d) | $150 | $99-34% |
| Performance per Dollar | 25.3 | 38.4+52% |
| Codename | Amethyst | TU117 |
| Release | May 15 2016 | May 6 2021 |
| Ranking | #519 | #518 |
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