
GeForce 8400M GT
Popular choices:

Radeon X550XTX
Popular choices:
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. The GeForce 8400M GT is positioned at rank #682 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 GeForce 8400M GT
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon X550XTX uses modern memory architecture. The Radeon X550XTX likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce 8400M GT lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon X550XTX is the superior choice for raw performance. It leads with a 6% higher G3D Mark score and 100% more VRAM (512 MB vs 256 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce 8400M GT.
| Insight | GeForce 8400M GT | Radeon X550XTX |
|---|---|---|
| Performance | ❌Lower raw frame rates (-6%) | ✅Leading raw performance (+6%) |
| Longevity | 🛑Obsolete Architecture (2014 / Maxwell (2014−2017)) | 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 | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce 8400M GT offers a compelling cost-to-performance ratio. Priced at $30 versus $49 for the Radeon X550XTX, it costs 39% less. While it maintains basic entry-level capabilities, this results in a 54.1% higher cost efficiency score.
| Insight | GeForce 8400M GT | Radeon X550XTX |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+54.1%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($30) | ⚠️Higher upfront cost ($49) |
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 GeForce 8400M GT and Radeon X550XTX

GeForce 8400M GT
The GeForce 8400M GT is manufactured by NVIDIA. It was released in March 12 2014. It features the Maxwell architecture. The core clock ranges from 1029 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 67 points.

Radeon X550XTX
The Radeon X550XTX 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: 71 points.
Graphics Performance
In G3D Mark, the GeForce 8400M GT scores 67 versus the Radeon X550XTX's 71 — the Radeon X550XTX leads by 6%. The GeForce 8400M GT is built on Maxwell while the Radeon X550XTX uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 384 (GeForce 8400M GT) vs 512 (Radeon X550XTX). Raw compute: 0.8632 TFLOPS (GeForce 8400M GT) vs 1.247 TFLOPS (Radeon X550XTX). Boost clocks: 1124 MHz vs 1218 MHz.
| Feature | GeForce 8400M GT | Radeon X550XTX |
|---|---|---|
| G3D Mark Score | 67 | 71+6% |
| Architecture | Maxwell | GCN 4.0 |
| Process Node | 28 nm | 14 nm |
| Shading Units | 384 | 512+33% |
| Compute (TFLOPS) | 0.8632 TFLOPS | 1.247 TFLOPS+44% |
| Boost Clock | 1124 MHz | 1218 MHz+8% |
| ROPs | 8 | 16+100% |
| TMUs | 16 | 32+100% |
| L1 Cache | 192 KB+50% | 128 KB |
| L2 Cache | 1 MB+100% | 0.5 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce 8400M GT | Radeon X550XTX |
|---|---|---|
| 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 GeForce 8400M GT comes with 256 MB of VRAM, while the Radeon X550XTX has 512 MB. The Radeon X550XTX offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit. L2 Cache: 1 MB (GeForce 8400M GT) vs 0.5 MB (Radeon X550XTX) — the GeForce 8400M GT has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 8400M GT | Radeon X550XTX |
|---|---|---|
| VRAM Capacity | 0.25 GB | 0.5 GB+100% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 1 MB+100% | 0.5 MB |
Display & API Support
DirectX support: 10.0 (GeForce 8400M GT) vs 9_0b (Radeon X550XTX). Maximum simultaneous displays: 1 vs 2.
| Feature | GeForce 8400M GT | Radeon X550XTX |
|---|---|---|
| DirectX | 10.0+11% | 9_0b |
| Max Displays | 1 | 2+100% |
Power & Dimensions
The GeForce 8400M GT draws 33W versus the Radeon X550XTX's 50W — a 41% difference. The GeForce 8400M GT is more power-efficient. Recommended PSU: 350W (GeForce 8400M GT) vs 350W (Radeon X550XTX). Power connectors: Legacy vs PCIe-powered. Card length: 0mm vs 168mm, occupying 0 vs 1 slots.
| Feature | GeForce 8400M GT | Radeon X550XTX |
|---|---|---|
| TDP | 33W-34% | 50W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | PCIe-powered |
| Length | 0mm | 168mm |
| Height | 0mm | — |
| Slots | 0-100% | 1 |
| Temp (Load) | 75°C | — |
| Perf/Watt | 2.0+43% | 1.4 |
Value Analysis
The GeForce 8400M GT launched at $50 MSRP and currently averages $30, while the Radeon X550XTX launched at $0 and now averages $49. The GeForce 8400M GT costs 38.8% less ($19 savings) at current market prices. Performance per dollar (G3D Mark / price): 2.2 (GeForce 8400M GT) vs 1.4 (Radeon X550XTX) — the GeForce 8400M GT offers 57.1% better value. The Radeon X550XTX is the newer GPU (2019 vs 2014).
| Feature | GeForce 8400M GT | Radeon X550XTX |
|---|---|---|
| MSRP | $50 | $0-100% |
| Avg Price (30d) | $30-39% | $49 |
| Performance per Dollar | 2.2+57% | 1.4 |
| Codename | GM108 | Lexa |
| Release | March 12 2014 | March 27 2019 |
| Ranking | #854 | #772 |
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