
GeForce 8400M GS

Mobility Radeon HD 3400 Serisi
GeForce 8400M GS vs Mobility Radeon HD 3400 Serisi Performance Spectrum
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.
GeForce 8400M GS vs Mobility Radeon HD 3400 Serisi FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends
GeForce 8400M GS vs Mobility Radeon HD 3400 Serisi: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce 8400M GS
2014Why buy it
- ✅More future proof: Maxwell (2014−2017) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌Less VRAM, with 128 MB vs 512 MB for high-resolution textures and newer games.
- ❌2014 hardware with 128 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌2% HIGHER MSRP$50 MSRPvs$49 MSRP
Mobility Radeon HD 3400 Serisi
2009Why buy it
- ✅Costs $1 less on MSRP ($49 MSRP vs $50 MSRP).
- ✅300% more VRAM for high-resolution textures and newer games (512 MB vs 128 MB).
Trade-offs
- ❌2009 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
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GeForce 8400M GS vs Mobility Radeon HD 3400 Serisi Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 8400M GS
The GeForce 8400M GS 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: 104 points.

Mobility Radeon HD 3400 Serisi
The Mobility Radeon HD 3400 Serisi is manufactured by AMD. It was released in January 9 2009. It features the TeraScale architecture. The core clock speed is 550 MHz. It has 800 shading units. The thermal design power (TDP) is 30W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 111 points.
Graphics Performance
In G3D Mark, the GeForce 8400M GS scores 104 versus the Mobility Radeon HD 3400 Serisi's 111 — the Mobility Radeon HD 3400 Serisi leads by 6.7%. The GeForce 8400M GS is built on Maxwell while the Mobility Radeon HD 3400 Serisi uses TeraScale, both on 28 nm vs 55 nm. Shader units: 384 (GeForce 8400M GS) vs 800 (Mobility Radeon HD 3400 Serisi). Raw compute: 0.8632 TFLOPS (GeForce 8400M GS) vs 0.88 TFLOPS (Mobility Radeon HD 3400 Serisi).
| Feature | GeForce 8400M GS | Mobility Radeon HD 3400 Serisi |
|---|---|---|
| G3D Mark Score | 104 | 111+7% |
| Architecture | Maxwell | TeraScale |
| Process Node | 28 nm | 55 nm |
| Shading Units | 384 | 800+108% |
| Compute (TFLOPS) | 0.8632 TFLOPS | 0.88 TFLOPS+2% |
| ROPs | 8 | 16+100% |
| TMUs | 16 | 40+150% |
| L1 Cache | 192 KB+20% | 160 KB |
| L2 Cache | 1 MB+300% | 0.25 MB |
Advanced Features (DLSS/FSR)
The GeForce 8400M GS gets NVIDIA DLSS, which still tends to look cleaner in motion. The Mobility Radeon HD 3400 Serisi leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce 8400M GS | Mobility Radeon HD 3400 Serisi |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce 8400M GS has 128 MB of VRAM, while the Mobility Radeon HD 3400 Serisi carries 512 MB. Mobility Radeon HD 3400 Serisi gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce 8400M GS and 64-bit on the Mobility Radeon HD 3400 Serisi. L2 Cache: 1 MB (GeForce 8400M GS) vs 0.25 MB (Mobility Radeon HD 3400 Serisi) — the GeForce 8400M GS has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 8400M GS | Mobility Radeon HD 3400 Serisi |
|---|---|---|
| VRAM Capacity | 0.125 GB | 0.5 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 1 MB+300% | 0.25 MB |
Display & API Support
DirectX support: 10_0 (GeForce 8400M GS) vs 10.1 (Mobility Radeon HD 3400 Serisi). Maximum simultaneous displays: 2 vs 2.
| Feature | GeForce 8400M GS | Mobility Radeon HD 3400 Serisi |
|---|---|---|
| DirectX | 10_0 | 10.1 |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: PureVideo (GeForce 8400M GS) vs UVD (Mobility Radeon HD 3400 Serisi). Decoder: PureVideo vs UVD.
| Feature | GeForce 8400M GS | Mobility Radeon HD 3400 Serisi |
|---|---|---|
| Encoder | PureVideo | UVD |
| Decoder | PureVideo | UVD |
| Codecs | H.264,MPEG-2,VC-1,WMV9 | — |
Power & Dimensions
The GeForce 8400M GS draws 33W versus the Mobility Radeon HD 3400 Serisi's 30W — a 9.5% difference. The Mobility Radeon HD 3400 Serisi is more power-efficient. Recommended PSU: 350W (GeForce 8400M GS) vs 350W (Mobility Radeon HD 3400 Serisi). Power connectors: Legacy vs PCIe-powered. Typical load temperature: 80°C vs 80°C.
| Feature | GeForce 8400M GS | Mobility Radeon HD 3400 Serisi |
|---|---|---|
| TDP | 33W | 30W-9% |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | PCIe-powered |
| Slots | 0 | — |
| Temp (Load) | 80°C | 80°C |
| Perf/Watt | 3.2 | 3.7+16% |
Value Analysis
At launch, the GeForce 8400M GS came in at $50, while the Mobility Radeon HD 3400 Serisi launched at $49. On MSRP, Mobility Radeon HD 3400 Serisi was 2% cheaper ($1 less). Performance per dollar on MSRP (G3D Mark / MSRP): 2.1 (GeForce 8400M GS) vs 2.3 (Mobility Radeon HD 3400 Serisi) — the Mobility Radeon HD 3400 Serisi offers 9.5% better value. The newer card here is GeForce 8400M GS (2014 vs 2009).
| Feature | GeForce 8400M GS | Mobility Radeon HD 3400 Serisi |
|---|---|---|
| MSRP | $50 | $49-2% |
| Performance per Dollar | 2.1 | 2.3+10% |
| Codename | GM108 | M98 |
| Release | March 12 2014 | January 9 2009 |
| Ranking | #854 | #927 |
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