Radeon R7E vs Radeon R5 420
Radeon R7E
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Radeon R5 420
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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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
Performance Per Dollar Radeon R5 420
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon R5 420 is the superior choice for raw performance. It leads with a 1.8% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon R7E.
| Insight | Radeon R7E | Radeon R5 420 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.8%) | ✅Leading raw performance (+1.8%) |
| Longevity | 🛑Obsolete Architecture (2013 / GCN 1.0 (2012−2020)) | 🛑Obsolete Architecture (2017 / GCN 4.0 (2016−2020)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
The Radeon R5 420 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon R5 420 holds the technical lead. Priced at $20 (vs $49), it costs 59% less, resulting in a 149.3% higher cost efficiency score.
| Insight | Radeon R7E | Radeon R5 420 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+149.3%) |
| Upfront Cost | ⚠️Higher upfront cost ($49) | ✅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 R7E and Radeon R5 420
Radeon R7E
The Radeon R7E is manufactured by AMD. It was released in December 20 2013. It features the GCN 1.0 architecture. The core clock speed is 800 MHz. It has 512 shading units. The thermal design power (TDP) is 55W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 565 points. Launch price was $109.
Radeon R5 420
The Radeon R5 420 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: 575 points. Launch price was $79.
Graphics Performance
The Radeon R7E scores 565 and the Radeon R5 420 reaches 575 in the G3D Mark benchmark — just a 1.8% difference, making them near-identical in rasterization performance. The Radeon R7E is built on GCN 1.0 while the Radeon R5 420 uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 512 (Radeon R7E) vs 384 (Radeon R5 420). Raw compute: 0.8192 TFLOPS (Radeon R7E) vs 0.9085 TFLOPS (Radeon R5 420).
| Feature | Radeon R7E | Radeon R5 420 |
|---|---|---|
| G3D Mark Score | 565 | 575+2% |
| Architecture | GCN 1.0 | GCN 4.0 |
| Process Node | 28 nm | 14 nm |
| Shading Units | 512+33% | 384 |
| Compute (TFLOPS) | 0.8192 TFLOPS | 0.9085 TFLOPS+11% |
| ROPs | 16 | 16 |
| TMUs | 32+33% | 24 |
| L1 Cache | 128 KB+33% | 96 KB |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | Radeon R7E | Radeon R5 420 |
|---|---|---|
| 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: 256 KB (Radeon R7E) vs 512 KB (Radeon R5 420) — the Radeon R5 420 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon R7E | Radeon R5 420 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 256 KB | 512 KB+100% |
Power & Dimensions
The Radeon R7E draws 55W versus the Radeon R5 420's 50W — a 9.5% difference. The Radeon R5 420 is more power-efficient. Recommended PSU: 350W (Radeon R7E) vs 350W (Radeon R5 420). Power connectors: None vs None.
| Feature | Radeon R7E | Radeon R5 420 |
|---|---|---|
| TDP | 55W | 50W-9% |
| Recommended PSU | 350W | 350W |
| Power Connector | None | None |
| Length | 1mm | — |
| Slots | 0 | — |
| Perf/Watt | 10.3 | 11.5+12% |
Value Analysis
The Radeon R7E launched at $0 MSRP and currently averages $49, while the Radeon R5 420 launched at $80 and now averages $20. The Radeon R5 420 costs 59.2% less ($29 savings) at current market prices. Performance per dollar (G3D Mark / price): 11.5 (Radeon R7E) vs 28.8 (Radeon R5 420) — the Radeon R5 420 offers 150.4% better value. The Radeon R5 420 is the newer GPU (2017 vs 2013).
| Feature | Radeon R7E | Radeon R5 420 |
|---|---|---|
| MSRP | $0-100% | $80 |
| Avg Price (30d) | $49 | $20-59% |
| Performance per Dollar | 11.5 | 28.8+150% |
| Codename | Cape Verde | Lexa |
| Release | December 20 2013 | April 20 2017 |
| Ranking | #738 | #773 |
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