
Radeon R5 420
Popular choices:

GeForce 720A
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 420 is positioned at rank 175 and the GeForce 720A is on rank 252, so the Radeon R5 420 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 420
Performance Per Dollar GeForce 720A
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce 720A is the superior choice for raw performance. It leads with a 0.3% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon R5 420.
| Insight | Radeon R5 420 | GeForce 720A |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.3%) | ✅Leading raw performance (+0.3%) |
| Longevity | 🛑Obsolete Architecture (2017 / GCN 4.0 (2016−2020)) | 🛑Obsolete Architecture (2015 / Maxwell (2014−2017)) |
| 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 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 $30), it costs 33% less, resulting in a 49.5% higher cost efficiency score.
| Insight | Radeon R5 420 | GeForce 720A |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+49.5%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($20) | ⚠️Higher upfront cost ($30) |
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 420 and GeForce 720A

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.

GeForce 720A
The GeForce 720A is manufactured by NVIDIA. It was released in March 13 2015. It features the Maxwell architecture. The core clock ranges from 928 MHz to 941 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 577 points.
Graphics Performance
The Radeon R5 420 scores 575 and the GeForce 720A reaches 577 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The Radeon R5 420 is built on GCN 4.0 while the GeForce 720A uses Maxwell, both on 14 nm vs 28 nm. Shader units: 384 (Radeon R5 420) vs 384 (GeForce 720A). Raw compute: 0.9085 TFLOPS (Radeon R5 420) vs 0.7227 TFLOPS (GeForce 720A). Boost clocks: 1124 MHz vs 941 MHz.
| Feature | Radeon R5 420 | GeForce 720A |
|---|---|---|
| G3D Mark Score | 575 | 577 |
| Architecture | GCN 4.0 | Maxwell |
| Process Node | 14 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.9085 TFLOPS+26% | 0.7227 TFLOPS |
| Boost Clock | 1124 MHz+19% | 941 MHz |
| ROPs | 16+100% | 8 |
| TMUs | 24 | 24 |
| L1 Cache | 96 KB | 192 KB+100% |
| L2 Cache | 0.5 MB | 1 MB+100% |
Advanced Features (DLSS/FSR)
| Feature | Radeon R5 420 | GeForce 720A |
|---|---|---|
| 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 | Standard |
Video Memory (VRAM)
Both cards feature 512 MB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 0.5 MB (Radeon R5 420) vs 1 MB (GeForce 720A) — the GeForce 720A has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon R5 420 | GeForce 720A |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 0.5 MB | 1 MB+100% |
Power & Dimensions
The Radeon R5 420 draws 50W versus the GeForce 720A's 33W — a 41% difference. The GeForce 720A is more power-efficient. Recommended PSU: 350W (Radeon R5 420) vs 350W (GeForce 720A). Power connectors: None vs Legacy.
| Feature | Radeon R5 420 | GeForce 720A |
|---|---|---|
| TDP | 50W | 33W-34% |
| Recommended PSU | 350W | 350W |
| Power Connector | None | Legacy |
| Length | — | 0mm |
| Height | — | 0mm |
| Slots | — | 0 |
| Temp (Load) | — | 85 |
| Perf/Watt | 11.5 | 17.5+52% |
Value Analysis
The Radeon R5 420 launched at $80 MSRP and currently averages $20, while the GeForce 720A launched at $30 and now averages $30. The Radeon R5 420 costs 33.3% less ($10 savings) at current market prices. Performance per dollar (G3D Mark / price): 28.8 (Radeon R5 420) vs 19.2 (GeForce 720A) — the Radeon R5 420 offers 50% better value. The Radeon R5 420 is the newer GPU (2017 vs 2015).
| Feature | Radeon R5 420 | GeForce 720A |
|---|---|---|
| MSRP | $80 | $30-63% |
| Avg Price (30d) | $20-33% | $30 |
| Performance per Dollar | 28.8+50% | 19.2 |
| Codename | Lexa | GM108 |
| Release | April 20 2017 | March 13 2015 |
| Ranking | #773 | #810 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
















