
GeForce 8400M G

Mobility Radeon HD 2400 XT
GeForce 8400M G vs Mobility Radeon HD 2400 XT 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 G vs Mobility Radeon HD 2400 XT 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 G vs Mobility Radeon HD 2400 XT: 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 G
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 256 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.
Mobility Radeon HD 2400 XT
2009Why buy it
- ✅Costs $1 less on MSRP ($49 MSRP vs $50 MSRP).
- ✅100% more VRAM for high-resolution textures and newer games (256 MB vs 128 MB).
Trade-offs
- ❌2009 hardware with 256 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 G vs Mobility Radeon HD 2400 XT Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 8400M G
The GeForce 8400M G 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: 105 points.

Mobility Radeon HD 2400 XT
The Mobility Radeon HD 2400 XT 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 ×2 shading units. The thermal design power (TDP) is 30W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 102 points.
Graphics Performance
The GeForce 8400M G scores 105 and the Mobility Radeon HD 2400 XT reaches 102 in the G3D Mark benchmark — just a 2.9% difference, making them near-identical in rasterization performance. The GeForce 8400M G is built on Maxwell while the Mobility Radeon HD 2400 XT uses TeraScale, both on 28 nm vs 55 nm. Shader units: 384 (GeForce 8400M G) vs 800 (Mobility Radeon HD 2400 XT). Raw compute: 0.8632 TFLOPS (GeForce 8400M G) vs 0.88 TFLOPS ×2 (Mobility Radeon HD 2400 XT).
| Feature | GeForce 8400M G | Mobility Radeon HD 2400 XT |
|---|---|---|
| G3D Mark Score | 105+3% | 102 |
| Architecture | Maxwell | TeraScale |
| Process Node | 28 nm | 55 nm |
| Shading Units | 384 | 800 ×2+108% |
| Compute (TFLOPS) | 0.8632 TFLOPS | 0.88 TFLOPS ×2+2% |
| ROPs | 8 | 16 ×2+100% |
| TMUs | 16 | 40 ×2+150% |
| L1 Cache | 192 KB+20% | 160 KB |
| L2 Cache | 1 MB+300% | 0.25 MB |
Advanced Features (DLSS/FSR)
The GeForce 8400M G gets NVIDIA DLSS, which still tends to look cleaner in motion. The Mobility Radeon HD 2400 XT leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce 8400M G | Mobility Radeon HD 2400 XT |
|---|---|---|
| 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 G has 128 MB of VRAM, while the Mobility Radeon HD 2400 XT carries 256 MB. Mobility Radeon HD 2400 XT gives you 100% 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 G and 64-bit on the Mobility Radeon HD 2400 XT. L2 Cache: 1 MB (GeForce 8400M G) vs 0.25 MB (Mobility Radeon HD 2400 XT) — the GeForce 8400M G has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 8400M G | Mobility Radeon HD 2400 XT |
|---|---|---|
| VRAM Capacity | 0.125 GB | 0.25 GB+100% |
| 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: 11.1 (GeForce 8400M G) vs 10.0 (Mobility Radeon HD 2400 XT). OpenGL: 3.3 vs 3.3. Maximum simultaneous displays: 2 vs 2.
| Feature | GeForce 8400M G | Mobility Radeon HD 2400 XT |
|---|---|---|
| DirectX | 11.1+11% | 10.0 |
| OpenGL | 3.3 | 3.3 |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: PureVideo HD (GeForce 8400M G) vs Avivo HD (Mobility Radeon HD 2400 XT). Decoder: PureVideo HD vs UVD 1.0. Supported codecs: MPEG-2,H.264 (GeForce 8400M G) vs H.264,VC-1,MPEG-2 (Mobility Radeon HD 2400 XT).
| Feature | GeForce 8400M G | Mobility Radeon HD 2400 XT |
|---|---|---|
| Encoder | PureVideo HD | Avivo HD |
| Decoder | PureVideo HD | UVD 1.0 |
| Codecs | MPEG-2,H.264 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GeForce 8400M G draws 33W versus the Mobility Radeon HD 2400 XT's 30W — a 9.5% difference. The Mobility Radeon HD 2400 XT is more power-efficient. Recommended PSU: 350W (GeForce 8400M G) vs 350W (Mobility Radeon HD 2400 XT). Power connectors: Legacy vs PCIe-powered. Typical load temperature: 75°C vs 85.
| Feature | GeForce 8400M G | Mobility Radeon HD 2400 XT |
|---|---|---|
| TDP | 33W | 30W-9% |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | PCIe-powered |
| Slots | 0 | 0 |
| Temp (Load) | 75°C-12% | 85 |
| Perf/Watt | 3.2 | 3.4+6% |
Value Analysis
At launch, the GeForce 8400M G came in at $50, while the Mobility Radeon HD 2400 XT launched at $49. On MSRP, Mobility Radeon HD 2400 XT was 2% cheaper ($1 less). Performance per dollar on MSRP (G3D Mark / MSRP): 2.1 (GeForce 8400M G) vs 2.1 (Mobility Radeon HD 2400 XT) — the Mobility Radeon HD 2400 XT offers 0% better value. The newer card here is GeForce 8400M G (2014 vs 2009).
| Feature | GeForce 8400M G | Mobility Radeon HD 2400 XT |
|---|---|---|
| MSRP | $50 | $49-2% |
| Performance per Dollar | 2.1 | 2.1 |
| Codename | GM108 | M98 |
| Release | March 12 2014 | January 9 2009 |
| Ranking | #854 | #818 |
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