GeForce 8400M G vs Mobility Radeon HD 2400 XT

NVIDIA

GeForce 8400M G

2014Core: 1029 MHzBoost: 1124 MHz
VS
AMD

Mobility Radeon HD 2400 XT

2009Core: 550 MHz

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: 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

2014

Why 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

2009

Why 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.

Quick Answers

Which GPU is faster for gaming right now?
GeForce 8400M G is the faster gaming card right now based on the synthetic data we have. It leads by 2.9% in PassMark G3D (105 vs 102), which is the best performance signal available in this matchup.
Which GPU is the safer long-term pick for 2026 and beyond?
GeForce 8400M G is the safer long-term pick for 2026 and beyond. The case is simple: a 28nm process instead of 55nm and a newer 2014 generation instead of 2009. That makes it the less risky pick as game demands keep moving.
Which GPU is the better buy today?
GeForce 8400M G makes the most sense to buy today. It is $1 more expensive on MSRP at $50 vs $49, and it leads G3D-per-dollar by 0.9% (2.1 vs 2.1), so the value case lines up with the gaming result.

GeForce 8400M G vs Mobility Radeon HD 2400 XT Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

NVIDIA

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.

AMD

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).

FeatureGeForce 8400M GMobility 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.

FeatureGeForce 8400M GMobility 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.

FeatureGeForce 8400M GMobility 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.

FeatureGeForce 8400M GMobility 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).

FeatureGeForce 8400M GMobility 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.

FeatureGeForce 8400M GMobility 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).

FeatureGeForce 8400M GMobility 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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