Mobility Radeon HD 3430 vs Mobility Radeon HD 4270

AMD

Mobility Radeon HD 3430

2009Core: 550 MHz
Similar parts
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VS
AMD

Mobility Radeon HD 4270

2009Core: 550 MHz
Similar parts
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Mobility Radeon HD 3430 vs Mobility Radeon HD 4270 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.

Mobility Radeon HD 3430 vs Mobility Radeon HD 4270: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

Mobility Radeon HD 3430

2009

Why buy it

  • Competitive enough if your priority is price, power, or specific feature preference.

Trade-offs

  • Less VRAM, with 256 MB vs 512 MB for high-resolution textures and newer games.
  • 2009 hardware with 256 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Mobility Radeon HD 4270

2009

Why buy it

  • 100% more VRAM for high-resolution textures and newer games (512 MB vs 256 MB).
  • More future proof: TeraScale (2005−2013) on 55nm with a newer platform for upcoming games.

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.

Quick Answers

Which GPU is faster for gaming right now?
Mobility Radeon HD 3430 is the faster gaming card right now based on the synthetic data we have. It leads by 5.4% in PassMark G3D (98 vs 93), which is the best performance signal available in this matchup.
Which GPU is the safer long-term pick for 2026 and beyond?
Mobility Radeon HD 3430 is the safer long-term pick for 2026 and beyond because it comes out ahead on the available hardware-headroom signals for this matchup.
Which GPU is the better buy today?
Mobility Radeon HD 3430 makes the most sense to buy today. It is priced the same on MSRP at $49 vs $49, and it leads G3D-per-dollar by 5.4% (2.0 vs 1.9), so the value case lines up with the gaming result.

Mobility Radeon HD 3430 vs Mobility Radeon HD 4270 Technical Specifications

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

AMD

Mobility Radeon HD 3430

The Mobility Radeon HD 3430 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: 98 points.

AMD

Mobility Radeon HD 4270

The Mobility Radeon HD 4270 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: 93 points.

Graphics Performance

In G3D Mark, the Mobility Radeon HD 3430 scores 98 versus the Mobility Radeon HD 4270's 93 — the Mobility Radeon HD 3430 leads by 5.4%. The Mobility Radeon HD 3430 is built on TeraScale while the Mobility Radeon HD 4270 uses TeraScale, both on a 55 nm process. Shader units: 800 (Mobility Radeon HD 3430) vs 800 (Mobility Radeon HD 4270). Raw compute: 0.88 TFLOPS (Mobility Radeon HD 3430) vs 0.88 TFLOPS (Mobility Radeon HD 4270).

FeatureMobility Radeon HD 3430Mobility Radeon HD 4270
G3D Mark Score
98+5%
93
Architecture
TeraScale
TeraScale
Process Node
55 nm
55 nm
Shading Units
800
800
Compute (TFLOPS)
0.88 TFLOPS
0.88 TFLOPS
ROPs
16
16
TMUs
40
40
L1 Cache
160 KB
160 KB
L2 Cache
256 KB
256 KB
Frame Generation
FSR upscaling
FSR upscaling

Advanced Features (DLSS/FSR)

FeatureMobility Radeon HD 3430Mobility Radeon HD 4270
Upscaling Tech
FSR Upscaling / FSR 4
FSR Upscaling / FSR 4
Frame Generation
Not Supported
Not Supported
Ray Reconstruction
No
No
Low Latency
AMD Anti-Lag
AMD Anti-Lag
💾

Video Memory (VRAM)

The Mobility Radeon HD 3430 has 256 MB of VRAM, while the Mobility Radeon HD 4270 carries 512 MB. Mobility Radeon HD 4270 gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the Mobility Radeon HD 3430 and 64-bit on the Mobility Radeon HD 4270.

FeatureMobility Radeon HD 3430Mobility Radeon HD 4270
VRAM Capacity
0.25 GB
0.5 GB+100%
Memory Type
GDDR5
GDDR5
Memory Bandwidth
Unknown
Unknown
Bus Width
64-bit
64-bit
L2 Cache
256 KB
256 KB
🖥️

Display & API Support

DirectX support: 10.1 (Mobility Radeon HD 3430) vs 10.1 (Mobility Radeon HD 4270). OpenGL: 3.3 vs 3.3. Maximum simultaneous displays: 2 vs 2.

FeatureMobility Radeon HD 3430Mobility Radeon HD 4270
DirectX
10.1
10.1
OpenGL
3.3
3.3
Max Displays
2
2
🎬

Media & Encoding

Hardware encoder: Avivo HD (Mobility Radeon HD 3430) vs Avivo HD (Mobility Radeon HD 4270). Decoder: UVD vs UVD 2. Supported codecs: H.264,VC-1,MPEG-2 (Mobility Radeon HD 3430) vs H.264,VC-1,MPEG-2 (Mobility Radeon HD 4270).

FeatureMobility Radeon HD 3430Mobility Radeon HD 4270
Encoder
Avivo HD
Avivo HD
Decoder
UVD
UVD 2
Codecs
H.264,VC-1,MPEG-2
H.264,VC-1,MPEG-2
🔌

Power & Dimensions

The Mobility Radeon HD 3430 draws 30W versus the Mobility Radeon HD 4270's 30W — a 0% difference. The Mobility Radeon HD 4270 is more power-efficient. Recommended PSU: 350W (Mobility Radeon HD 3430) vs 350W (Mobility Radeon HD 4270). Power connectors: PCIe-powered vs PCIe-powered.

FeatureMobility Radeon HD 3430Mobility Radeon HD 4270
TDP
30W
30W
Recommended PSU
350W
350W
Power Connector
PCIe-powered
PCIe-powered
Slots
1
1
Perf/Watt
3.3+6%
3.1
💰

Value Analysis

At launch, the Mobility Radeon HD 3430 came in at $49, while the Mobility Radeon HD 4270 launched at $49. Performance per dollar on MSRP (G3D Mark / MSRP): 2.0 (Mobility Radeon HD 3430) vs 1.9 (Mobility Radeon HD 4270) — the Mobility Radeon HD 3430 offers 5.3% better value.

FeatureMobility Radeon HD 3430Mobility Radeon HD 4270
MSRP
$49
$49
Performance per Dollar
2.0+5%
1.9
Codename
M98
M98
Release
January 9 2009
January 9 2009
Ranking
#927
#927

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