
Radeon 620
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Radeon R7 M270DX
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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 620 is positioned at rank 375 and the Radeon R7 M270DX is on rank 372, so the Radeon R7 M270DX offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon 620
Performance Per Dollar Radeon R7 M270DX
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon 620 uses modern memory architecture. The Radeon 620 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon R7 M270DX lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon R7 M270DX is the superior choice for raw performance. It leads with a 0.8% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon 620.
| Insight | Radeon 620 | Radeon R7 M270DX |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.8%) | ✅Leading raw performance (+0.8%) |
| Longevity | GCN 3.0 (2014−2019) (28nm) | 🛑Obsolete Architecture (2014 / GCN 3.0 (2014−2019)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
The Radeon R7 M270DX offers a compelling cost-to-performance ratio. Priced at $20 versus $50 for the Radeon 620, it costs 60% less. While it maintains basic entry-level capabilities, this results in a 152.1% higher cost efficiency score.
| Insight | Radeon 620 | Radeon R7 M270DX |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+152.1%) |
| Upfront Cost | ⚠️Higher upfront cost ($50) | ✅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 620 and Radeon R7 M270DX

Radeon 620
The Radeon 620 is manufactured by AMD. It was released in May 13 2019. It features the GCN 3.0 architecture. The core clock ranges from 730 MHz to 1024 MHz. It has 384 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 954 points.

Radeon R7 M270DX
The Radeon R7 M270DX is manufactured by AMD. It was released in June 11 2014. It features the GCN 3.0 architecture. The core clock ranges from 900 MHz to 940 MHz. It has 384 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 962 points.
Graphics Performance
The Radeon 620 scores 954 and the Radeon R7 M270DX reaches 962 in the G3D Mark benchmark — just a 0.8% difference, making them near-identical in rasterization performance. The Radeon 620 is built on GCN 3.0 while the Radeon R7 M270DX uses GCN 3.0, both on a 28 nm process. Shader units: 384 (Radeon 620) vs 384 (Radeon R7 M270DX). Raw compute: 0.7864 TFLOPS (Radeon 620) vs 0.7219 TFLOPS (Radeon R7 M270DX). Boost clocks: 1024 MHz vs 940 MHz.
| Feature | Radeon 620 | Radeon R7 M270DX |
|---|---|---|
| G3D Mark Score | 954 | 962 |
| Architecture | GCN 3.0 | GCN 3.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.7864 TFLOPS+9% | 0.7219 TFLOPS |
| Boost Clock | 1024 MHz+9% | 940 MHz |
| ROPs | 8 | 8 |
| TMUs | 24 | 24 |
| L1 Cache | 96 KB | 96 KB |
| L2 Cache | 128 KB | 256 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | Radeon 620 | Radeon R7 M270DX |
|---|---|---|
| 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: 128 KB (Radeon 620) vs 256 KB (Radeon R7 M270DX) — the Radeon R7 M270DX has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon 620 | Radeon R7 M270DX |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 128 KB | 256 KB+100% |
Power & Dimensions
The Radeon 620 draws 50W versus the Radeon R7 M270DX's 75W — a 40% difference. The Radeon 620 is more power-efficient. Recommended PSU: 350W (Radeon 620) vs 350W (Radeon R7 M270DX). Power connectors: PCIe-powered vs Mobile.
| Feature | Radeon 620 | Radeon R7 M270DX |
|---|---|---|
| TDP | 50W-33% | 75W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | Mobile |
| Perf/Watt | 19.1+49% | 12.8 |
Value Analysis
The Radeon 620 launched at $100 MSRP and currently averages $50, while the Radeon R7 M270DX launched at $100 and now averages $20. The Radeon R7 M270DX costs 60% less ($30 savings) at current market prices. Performance per dollar (G3D Mark / price): 19.1 (Radeon 620) vs 48.1 (Radeon R7 M270DX) — the Radeon R7 M270DX offers 151.8% better value. The Radeon 620 is the newer GPU (2019 vs 2014).
| Feature | Radeon 620 | Radeon R7 M270DX |
|---|---|---|
| MSRP | $100 | $100 |
| Avg Price (30d) | $50 | $20-60% |
| Performance per Dollar | 19.1 | 48.1+152% |
| Codename | Polaris 24 | Topaz |
| Release | May 13 2019 | June 11 2014 |
| Ranking | #898 | #897 |
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