
GeForce 8400M GS

GeForce9400M
GeForce 8400M GS vs GeForce9400M 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 GeForce9400M 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

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
GeForce 8400M GS vs GeForce9400M: 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
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 2.1 vs 0 G3D/$ ($50 MSRP vs Unknown MSRP).
Trade-offs
- ❌Less VRAM, with 128 MB vs 512 MB for high-resolution textures and newer games.
- ❌2014 hardware with 128 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
GeForce9400M
2015Why buy it
- ✅300% more VRAM for high-resolution textures and newer games (512 MB vs 128 MB).
- ✅More future proof: Maxwell (2014−2017) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌2015 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 2.1 G3D/$ (Unknown MSRP vs $50 MSRP).
Quick Answers
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GeForce 8400M GS vs GeForce9400M 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.

GeForce9400M
The GeForce9400M is manufactured by NVIDIA. It was released in March 13 2015. It features the Maxwell architecture. The core clock ranges from 1072 MHz to 1176 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 106 points.
Graphics Performance
The GeForce 8400M GS scores 104 and the GeForce9400M reaches 106 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The GeForce 8400M GS is built on Maxwell while the GeForce9400M uses Maxwell, both on a 28 nm process. Shader units: 384 (GeForce 8400M GS) vs 384 (GeForce9400M). Raw compute: 0.8632 TFLOPS (GeForce 8400M GS) vs 0.9032 TFLOPS (GeForce9400M). Boost clocks: 1124 MHz vs 1176 MHz.
| Feature | GeForce 8400M GS | GeForce9400M |
|---|---|---|
| G3D Mark Score | 104 | 106+2% |
| Architecture | Maxwell | Maxwell |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.8632 TFLOPS | 0.9032 TFLOPS+5% |
| Boost Clock | 1124 MHz | 1176 MHz+5% |
| ROPs | 8 | 8 |
| TMUs | 16 | 24+50% |
| L1 Cache | 192 KB | 192 KB |
| L2 Cache | 1 MB | 1 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce 8400M GS | GeForce9400M |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | NVIDIA Reflex |
Video Memory (VRAM)
The GeForce 8400M GS has 128 MB of VRAM, while the GeForce9400M carries 512 MB. GeForce9400M 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 GeForce9400M.
| Feature | GeForce 8400M GS | GeForce9400M |
|---|---|---|
| VRAM Capacity | 0.125 GB | 0.5 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 1 MB | 1 MB |
Display & API Support
DirectX support: 10_0 (GeForce 8400M GS) vs 11.1 (10_0) (GeForce9400M). OpenGL: 3.3 vs 3.3. Maximum simultaneous displays: 2 vs 2.
| Feature | GeForce 8400M GS | GeForce9400M |
|---|---|---|
| DirectX | 10_0 | 11.1 (10_0)+11% |
| OpenGL | 3.3 | 3.3 |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: PureVideo (GeForce 8400M GS) vs No NVENC (Tesla) (GeForce9400M). Decoder: PureVideo vs PureVideo HD VP3. Supported codecs: H.264,MPEG-2,VC-1,WMV9 (GeForce 8400M GS) vs H.264,VC-1,MPEG-2 (GeForce9400M).
| Feature | GeForce 8400M GS | GeForce9400M |
|---|---|---|
| Encoder | PureVideo | No NVENC (Tesla) |
| Decoder | PureVideo | PureVideo HD VP3 |
| Codecs | H.264,MPEG-2,VC-1,WMV9 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GeForce 8400M GS draws 33W versus the GeForce9400M's 33W — a 0% difference. The GeForce9400M is more power-efficient. Recommended PSU: 350W (GeForce 8400M GS) vs 350W (GeForce9400M). Power connectors: Legacy vs PCIe-powered. Typical load temperature: 80°C vs 85°C.
| Feature | GeForce 8400M GS | GeForce9400M |
|---|---|---|
| TDP | 33W | 33W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | PCIe-powered |
| Slots | 0 | 0 |
| Temp (Load) | 80°C-6% | 85°C |
| Perf/Watt | 3.2 | 3.2 |
Value Analysis
The newer card here is GeForce9400M (2015 vs 2014).
| Feature | GeForce 8400M GS | GeForce9400M |
|---|---|---|
| MSRP | $50 | — |
| Codename | GM108 | GM108 |
| Release | March 12 2014 | March 13 2015 |
| Ranking | #854 | #847 |
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