
Radeon 520

Radeon Vega 3
Radeon 520 vs Radeon Vega 3 Performance Spectrum
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.
Radeon 520 vs Radeon Vega 3 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
Radeon 520 vs Radeon Vega 3: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
Radeon 520
2017Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 11.2 vs 0 G3D/$ ($78 MSRP vs Unknown MSRP).
- ✅100+% more VRAM for high-resolution textures and newer games (512 MB vs Unknown).
Trade-offs
- ❌Lower average FPS than Radeon Vega 3 across 50 tracked games in our benchmark data.
- ❌2017 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Radeon Vega 3
2021Why buy it
- ✅30.9% more average FPS across 50 tracked games in our benchmark data.
- ✅Radeon 520 is already obsolete for modern gaming, so Radeon Vega 3 is the less risky modern option long term.
- ✅More future proof: GCN 5.1 (2018−2022) on 7nm with a newer platform for upcoming games.
Trade-offs
- ❌Less VRAM, with Unknown vs 512 MB for high-resolution textures and newer games.
- ❌2021 hardware with Unknown of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 11.2 G3D/$ (Unknown MSRP vs $78 MSRP).
Quick Answers
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Radeon 520 vs Radeon Vega 3 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Radeon 520
The Radeon 520 is manufactured by AMD. It was released in April 20 2017. It features the GCN 4.0 architecture. The core clock ranges from 1100 MHz to 1183 MHz. It has 512 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 874 points. Launch price was $79.

Radeon Vega 3
The Radeon Vega 3 is manufactured by AMD. It was released in April 13 2021. It features the GCN 5.1 architecture. The core clock ranges from 300 MHz to 1900 MHz. It has 448 shading units. The thermal design power (TDP) is 45W. Manufactured using 7 nm process technology. G3D Mark benchmark score: 892 points.
Graphics Performance
The Radeon 520 scores 874 and the Radeon Vega 3 reaches 892 in the G3D Mark benchmark — just a 2.1% difference, making them near-identical in rasterization performance. The Radeon 520 is built on GCN 4.0 while the Radeon Vega 3 uses GCN 5.1, both on 14 nm vs 7 nm. Shader units: 512 (Radeon 520) vs 448 (Radeon Vega 3). Raw compute: 1.211 TFLOPS (Radeon 520) vs 1.702 TFLOPS (Radeon Vega 3). Boost clocks: 1183 MHz vs 1900 MHz.
| Feature | Radeon 520 | Radeon Vega 3 |
|---|---|---|
| G3D Mark Score | 874 | 892+2% |
| Architecture | GCN 4.0 | GCN 5.1 |
| Process Node | 14 nm | 7 nm |
| Shading Units | 512+14% | 448 |
| Compute (TFLOPS) | 1.211 TFLOPS | 1.702 TFLOPS+41% |
| Boost Clock | 1183 MHz | 1900 MHz+61% |
| ROPs | 16+100% | 8 |
| TMUs | 32+14% | 28 |
| Frame Generation | FSR upscaling | FSR upscaling |
Advanced Features (DLSS/FSR)
| Feature | Radeon 520 | Radeon Vega 3 |
|---|---|---|
| Upscaling Tech | FSR Upscaling / FSR 4 | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
The Radeon 520 has 512 MB of VRAM, while the Radeon Vega 3 carries 0 MB. Radeon 520 gives you 100+% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the Radeon 520 and System on the Radeon Vega 3.
| Feature | Radeon 520 | Radeon Vega 3 |
|---|---|---|
| VRAM Capacity | 0.5 GB | Shared System RAM |
| Memory Type | GDDR5 | Shared |
| Bus Width | 64-bit | System |
Power & Dimensions
The Radeon 520 draws 50W versus the Radeon Vega 3's 45W — a 10.5% difference. The Radeon Vega 3 is more power-efficient. Recommended PSU: 250W (Radeon 520) vs 1W (Radeon Vega 3). Power connectors: None vs Integrated.
| Feature | Radeon 520 | Radeon Vega 3 |
|---|---|---|
| TDP | 50W | 45W-10% |
| Recommended PSU | 250W | 1W-100% |
| Power Connector | None | Integrated |
| Slots | — | 0 |
| Perf/Watt | 17.5 | 19.8+13% |
Value Analysis
At launch, the Radeon 520 came in at $78, while the Radeon Vega 3 launched at $0. On MSRP, Radeon Vega 3 was 100+% cheaper ($78 less). Performance per dollar on MSRP (G3D Mark / MSRP): 11.2 (Radeon 520) vs Infinity (Radeon Vega 3) — the Radeon Vega 3 offers Infinity% better value. The newer card here is Radeon Vega 3 (2021 vs 2017).
| Feature | Radeon 520 | Radeon Vega 3 |
|---|---|---|
| MSRP | $78 | $0-100% |
| Performance per Dollar | 11.2 | Infinity |
| Codename | Lexa | Cezanne |
| Release | April 20 2017 | April 13 2021 |
| Ranking | #668 | #601 |
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