CPU
GPU
Radeon R5 M420
Popular choices:
Mobility Radeon HD 4830
Popular choices:
Performance Spectrum - GPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money. The Radeon R5 M420 is positioned at rank 663 and the Mobility Radeon HD 4830 is on rank 526, so the Mobility Radeon HD 4830 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon R5 M420
Performance Per Dollar Mobility Radeon HD 4830
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon R5 M420 is significantly newer (2016 vs 2009). The Radeon R5 M420 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Mobility Radeon HD 4830 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Mobility Radeon HD 4830 is the superior choice for raw performance. It leads with a 1.6% higher G3D Mark score and 100% more VRAM (1 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon R5 M420.
| Insight | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.6%) | ✅Leading raw performance (+1.6%) |
| Longevity | 🛑Obsolete Architecture (2016 / GCN 2.0 (2013−2017)) | 🛑Obsolete Architecture (2009 / TeraScale (2005−2013)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+100%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
The Mobility Radeon HD 4830 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Mobility Radeon HD 4830 holds the technical lead. Priced at $20 (vs $300), it costs 93% less, resulting in a 1423.8% higher cost efficiency score.
| Insight | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+1423.8%) |
| Upfront Cost | ⚠️Higher upfront cost ($300) | ✅More affordable ($20) |
Performance Check
Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.
Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.
Technical Specifications
Side-by-side comparison of Radeon R5 M420 and Mobility Radeon HD 4830
Radeon R5 M420
The Radeon R5 M420 is manufactured by AMD. It was released in May 15 2016. It features the GCN 2.0 architecture. The core clock ranges from 900 MHz to 1000 MHz. It has 768 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 504 points.
Mobility Radeon HD 4830
The Mobility Radeon HD 4830 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: 512 points.
Graphics Performance
The Radeon R5 M420 scores 504 and the Mobility Radeon HD 4830 reaches 512 in the G3D Mark benchmark — just a 1.6% difference, making them near-identical in rasterization performance. The Radeon R5 M420 is built on GCN 2.0 while the Mobility Radeon HD 4830 uses TeraScale, both on 28 nm vs 55 nm. Shader units: 768 (Radeon R5 M420) vs 800 (Mobility Radeon HD 4830). Raw compute: 1.536 TFLOPS (Radeon R5 M420) vs 0.88 TFLOPS (Mobility Radeon HD 4830).
| Feature | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| G3D Mark Score | 504 | 512+2% |
| Architecture | GCN 2.0 | TeraScale |
| Process Node | 28 nm | 55 nm |
| Shading Units | 768 | 800+4% |
| Compute (TFLOPS) | 1.536 TFLOPS+75% | 0.88 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 48+20% | 40 |
| L1 Cache | 192 KB+20% | 160 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
The Radeon R5 M420 comes with 512 MB of VRAM, while the Mobility Radeon HD 4830 has 1 GB. The Mobility Radeon HD 4830 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit.
| Feature | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 1 GB+100% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 256 KB | 256 KB |
Display & API Support
DirectX support: 12 (11_1) (Radeon R5 M420) vs 10.1 (Mobility Radeon HD 4830). OpenGL: 4.6 vs 3.3. Maximum simultaneous displays: 2 vs 2.
| Feature | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| DirectX | 12 (11_1)+19% | 10.1 |
| OpenGL | 4.6+39% | 3.3 |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: VCE 1.0 (Radeon R5 M420) vs Avivo HD (Mobility Radeon HD 4830). Decoder: UVD 4.0 vs UVD 2. Supported codecs: H.264,MPEG-4,VC-1,MPEG-2 (Radeon R5 M420) vs H.264,MPEG-2,VC-1 (Mobility Radeon HD 4830).
| Feature | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| Encoder | VCE 1.0 | Avivo HD |
| Decoder | UVD 4.0 | UVD 2 |
| Codecs | H.264,MPEG-4,VC-1,MPEG-2 | H.264,MPEG-2,VC-1 |
Power & Dimensions
The Radeon R5 M420 draws 75W versus the Mobility Radeon HD 4830's 30W — a 85.7% difference. The Mobility Radeon HD 4830 is more power-efficient. Recommended PSU: 350W (Radeon R5 M420) vs 350W (Mobility Radeon HD 4830). Power connectors: Mobile vs PCIe-powered. Typical load temperature: 80 vs 85°C.
| Feature | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| TDP | 75W | 30W-60% |
| Recommended PSU | 350W | 350W |
| Power Connector | Mobile | PCIe-powered |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0-100% | 1 |
| Temp (Load) | 80-6% | 85°C |
| Perf/Watt | 6.7 | 17.1+155% |
Value Analysis
The Radeon R5 M420 launched at $300 MSRP and currently averages $300, while the Mobility Radeon HD 4830 launched at $130 and now averages $20. The Mobility Radeon HD 4830 costs 93.3% less ($280 savings) at current market prices. Performance per dollar (G3D Mark / price): 1.7 (Radeon R5 M420) vs 25.6 (Mobility Radeon HD 4830) — the Mobility Radeon HD 4830 offers 1405.9% better value. The Radeon R5 M420 is the newer GPU (2016 vs 2009).
| Feature | Radeon R5 M420 | Mobility Radeon HD 4830 |
|---|---|---|
| MSRP | $300 | $130-57% |
| Avg Price (30d) | $300 | $20-93% |
| Performance per Dollar | 1.7 | 25.6+1406% |
| Codename | Emerald | M98 |
| Release | May 15 2016 | January 9 2009 |
| Ranking | #649 | #927 |
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