Radeon R4 vs Radeon HD 6620G
Radeon R4
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Radeon HD 6620G
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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 R4 is positioned at rank 279 and the Radeon HD 6620G is on rank 423, so the Radeon R4 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon R4
Performance Per Dollar Radeon HD 6620G
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon R4 is significantly newer (2017 vs 2011). The Radeon R4 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon HD 6620G lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon R4 is the superior choice for raw performance. It leads with a 1.5% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 6620G.
| Insight | Radeon R4 | Radeon HD 6620G |
|---|---|---|
| Performance | ✅Leading raw performance (+1.5%) | ❌Lower raw frame rates (-1.5%) |
| Longevity | 🛑Obsolete Architecture (2017 / GCN 4.0 (2016−2020)) | 🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | — | — |
💎 Value Proposition
The Radeon HD 6620G offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 6620G holds the technical lead. Priced at $10 (vs $20), it costs 50% less, resulting in a 97.1% higher cost efficiency score.
| Insight | Radeon R4 | Radeon HD 6620G |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+97.1%) |
| Upfront Cost | ⚠️Higher upfront cost ($20) | ✅More affordable ($10) |
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 R4 and Radeon HD 6620G
Radeon R4
The Radeon R4 is manufactured by AMD. It was released in April 20 2017. It features the GCN 4.0 architecture. The core clock ranges from 1183 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 346 points. Launch price was $79.
Radeon HD 6620G
The Radeon HD 6620G is manufactured by AMD. It was released in April 19 2011. It features the TeraScale 2 architecture. The core clock speed is 600 MHz. It has 480 shading units. The thermal design power (TDP) is 45W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 341 points.
Graphics Performance
The Radeon R4 scores 346 and the Radeon HD 6620G reaches 341 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The Radeon R4 is built on GCN 4.0 while the Radeon HD 6620G uses TeraScale 2, both on 14 nm vs 40 nm. Shader units: 384 (Radeon R4) vs 480 (Radeon HD 6620G). Raw compute: 0.9085 TFLOPS (Radeon R4) vs 0.576 TFLOPS (Radeon HD 6620G).
| Feature | Radeon R4 | Radeon HD 6620G |
|---|---|---|
| G3D Mark Score | 346+1% | 341 |
| Architecture | GCN 4.0 | TeraScale 2 |
| Process Node | 14 nm | 40 nm |
| Shading Units | 384 | 480+25% |
| Compute (TFLOPS) | 0.9085 TFLOPS+58% | 0.576 TFLOPS |
| ROPs | 16+100% | 8 |
| TMUs | 24 | 24 |
| L1 Cache | 96 KB+100% | 48 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon R4 | Radeon HD 6620G |
|---|---|---|
| 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: 64-bit vs 128-bit. L2 Cache: 512 KB (Radeon R4) vs 256 KB (Radeon HD 6620G) — the Radeon R4 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon R4 | Radeon HD 6620G |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 512 KB+100% | 256 KB |
Power & Dimensions
The Radeon R4 draws 50W versus the Radeon HD 6620G's 45W — a 10.5% difference. The Radeon HD 6620G is more power-efficient. Recommended PSU: 350W (Radeon R4) vs 350W (Radeon HD 6620G). Power connectors: None vs 1x 6-pin.
| Feature | Radeon R4 | Radeon HD 6620G |
|---|---|---|
| TDP | 50W | 45W-10% |
| Recommended PSU | 350W | 350W |
| Power Connector | None | 1x 6-pin |
| Temp (Load) | — | 75°C |
| Perf/Watt | 6.9 | 7.6+10% |
Value Analysis
The Radeon R4 launched at $100 MSRP and currently averages $20, while the Radeon HD 6620G launched at $50 and now averages $10. The Radeon HD 6620G costs 50% less ($10 savings) at current market prices. Performance per dollar (G3D Mark / price): 17.3 (Radeon R4) vs 34.1 (Radeon HD 6620G) — the Radeon HD 6620G offers 97.1% better value. The Radeon R4 is the newer GPU (2017 vs 2011).
| Feature | Radeon R4 | Radeon HD 6620G |
|---|---|---|
| MSRP | $100 | $50-50% |
| Avg Price (30d) | $20 | $10-50% |
| Performance per Dollar | 17.3 | 34.1+97% |
| Codename | Lexa | Onega |
| Release | April 20 2017 | April 19 2011 |
| Ranking | #773 | #926 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
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