Radeon HD 7420G vs Radeon HD 6520G
Radeon HD 7420G
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Radeon HD 6520G
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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 HD 7420G is positioned at rank 158 and the Radeon HD 6520G is on rank 165, so the Radeon HD 7420G offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD 7420G
Performance Per Dollar Radeon HD 6520G
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 7420G is the superior choice for raw performance. It leads with a 5.3% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 6520G.
| Insight | Radeon HD 7420G | Radeon HD 6520G |
|---|---|---|
| Performance | ✅Leading raw performance (+5.3%) | ❌Lower raw frame rates (-5.3%) |
| Longevity | 🛑Obsolete Architecture (2013 / GCN 1.0 (2012−2020)) | 🛑Obsolete Architecture (2010 / TeraScale 3 (2010−2013)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
The Radeon HD 7420G offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 7420G holds the technical lead. Priced at $5 (vs $5), it costs 0% less, resulting in a 5.3% higher cost efficiency score.
| Insight | Radeon HD 7420G | Radeon HD 6520G |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+5.3%) | ❌Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 HD 7420G and Radeon HD 6520G
Radeon HD 7420G
The Radeon HD 7420G is manufactured by AMD. It was released in April 24 2013. It features the GCN 1.0 architecture. The core clock ranges from 950 MHz to 1000 MHz. It has 2048 ×2 shading units. The thermal design power (TDP) is 375W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 316 points. Launch price was $999.
Radeon HD 6520G
The Radeon HD 6520G is manufactured by AMD. It was released in December 14 2010. It features the TeraScale 3 architecture. The boost clock speed is 800 MHz. It has 1408 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 300 points. Launch price was $299.
Graphics Performance
In G3D Mark, the Radeon HD 7420G scores 316 versus the Radeon HD 6520G's 300 — the Radeon HD 7420G leads by 5.3%. The Radeon HD 7420G is built on GCN 1.0 while the Radeon HD 6520G uses TeraScale 3, both on 28 nm vs 40 nm. Shader units: 2,048 (Radeon HD 7420G) vs 1,408 (Radeon HD 6520G). Raw compute: 4.096 TFLOPS ×2 (Radeon HD 7420G) vs 2.253 TFLOPS (Radeon HD 6520G). Boost clocks: 1000 MHz vs 800 MHz.
| Feature | Radeon HD 7420G | Radeon HD 6520G |
|---|---|---|
| G3D Mark Score | 316+5% | 300 |
| Architecture | GCN 1.0 | TeraScale 3 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 2048 ×2+45% | 1408 |
| Compute (TFLOPS) | 4.096 TFLOPS ×2+82% | 2.253 TFLOPS |
| Boost Clock | 1000 MHz+25% | 800 MHz |
| ROPs | 32 ×2 | 32 |
| TMUs | 128 ×2+45% | 88 |
| L1 Cache | 512 KB+45% | 352 KB |
| L2 Cache | 768 KB+50% | 512 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7420G | Radeon HD 6520G |
|---|---|---|
| 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)
Both cards feature 512 MB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 768 KB (Radeon HD 7420G) vs 512 KB (Radeon HD 6520G) — the Radeon HD 7420G has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 7420G | Radeon HD 6520G |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 768 KB+50% | 512 KB |
Power & Dimensions
The Radeon HD 7420G draws 375W versus the Radeon HD 6520G's 200W — a 60.9% difference. The Radeon HD 6520G is more power-efficient. Recommended PSU: 350W (Radeon HD 7420G) vs 350W (Radeon HD 6520G). Power connectors: 1x 6-pin vs 1x 6-pin.
| Feature | Radeon HD 7420G | Radeon HD 6520G |
|---|---|---|
| TDP | 375W | 200W-47% |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | 1x 6-pin |
| Perf/Watt | 0.8 | 1.5+87% |
Value Analysis
The Radeon HD 7420G launched at $40 MSRP and currently averages $5, while the Radeon HD 6520G launched at $40 and now averages $5. Performance per dollar (G3D Mark / price): 63.2 (Radeon HD 7420G) vs 60.0 (Radeon HD 6520G) — the Radeon HD 7420G offers 5.3% better value. The Radeon HD 7420G is the newer GPU (2013 vs 2010).
| Feature | Radeon HD 7420G | Radeon HD 6520G |
|---|---|---|
| MSRP | $40 | $40 |
| Avg Price (30d) | $5 | $5 |
| Performance per Dollar | 63.2+5% | 60.0 |
| Codename | Malta | Cayman |
| Release | April 24 2013 | December 14 2010 |
| Ranking | #412 | #623 |
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