
Radeon 620

Radeon HD 8850M
Radeon 620 vs Radeon HD 8850M 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 620 vs Radeon HD 8850M 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 620 vs Radeon HD 8850M: 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 620
2019Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 9.5 vs 0 G3D/$ ($100 MSRP vs Unknown MSRP).
- ✅Radeon HD 8850M is already obsolete for modern gaming, so Radeon 620 is the less risky modern option long term.
Trade-offs
- ❌Lower average FPS than Radeon HD 8850M across 50 tracked games in our benchmark data.
- ❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
- ❌2019 hardware with 512 MB of VRAM already sits in legacy territory for modern games.
Radeon HD 8850M
2013Why buy it
- ✅22.0% more average FPS across 50 tracked games in our benchmark data.
- ✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
Trade-offs
- ❌2013 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 9.5 G3D/$ (Unknown MSRP vs $100 MSRP).
Quick Answers
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Radeon 620 vs Radeon HD 8850M Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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 HD 8850M
The Radeon HD 8850M is manufactured by AMD. It was released in April 1 2013. It features the GCN 1.0 architecture. The core clock ranges from 575 MHz to 625 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 973 points.
Graphics Performance
The Radeon 620 scores 954 and the Radeon HD 8850M reaches 973 in the G3D Mark benchmark — just a 2% difference, making them near-identical in rasterization performance. The Radeon 620 is built on GCN 3.0 while the Radeon HD 8850M uses GCN 1.0, both on a 28 nm process. Shader units: 384 (Radeon 620) vs 640 (Radeon HD 8850M). Raw compute: 0.7864 TFLOPS (Radeon 620) vs 0.8 TFLOPS (Radeon HD 8850M). Boost clocks: 1024 MHz vs 625 MHz.
| Feature | Radeon 620 | Radeon HD 8850M |
|---|---|---|
| G3D Mark Score | 954 | 973+2% |
| Architecture | GCN 3.0 | GCN 1.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 640+67% |
| Compute (TFLOPS) | 0.7864 TFLOPS | 0.8 TFLOPS+2% |
| Boost Clock | 1024 MHz+64% | 625 MHz |
| ROPs | 8 | 16+100% |
| TMUs | 24 | 40+67% |
| L1 Cache | 96 KB | 160 KB+67% |
| L2 Cache | 128 KB | 256 KB+100% |
| Frame Generation | FSR upscaling | FSR upscaling |
Advanced Features (DLSS/FSR)
| Feature | Radeon 620 | Radeon HD 8850M |
|---|---|---|
| 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 620 has 512 MB of VRAM, while the Radeon HD 8850M carries 2 GB. Radeon HD 8850M gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the Radeon 620 and System on the Radeon HD 8850M. L2 Cache: 128 KB (Radeon 620) vs 256 KB (Radeon HD 8850M) — the Radeon HD 8850M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon 620 | Radeon HD 8850M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 2 GB+300% |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 128-bit | System |
| L2 Cache | 128 KB | 256 KB+100% |
Power & Dimensions
The Radeon 620 draws 50W versus the Radeon HD 8850M's 50W — a 0% difference. The Radeon HD 8850M is more power-efficient. Recommended PSU: 350W (Radeon 620) vs 350W (Radeon HD 8850M). Power connectors: PCIe-powered vs 1x 6-pin.
| Feature | Radeon 620 | Radeon HD 8850M |
|---|---|---|
| TDP | 50W | 50W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | 1x 6-pin |
| Slots | — | 0 |
| Temp (Load) | — | 75°C |
| Perf/Watt | 19.1 | 19.5+2% |
Value Analysis
The newer card here is Radeon 620 (2019 vs 2013).
| Feature | Radeon 620 | Radeon HD 8850M |
|---|---|---|
| MSRP | $100 | — |
| Codename | Polaris 24 | Venus |
| Release | May 13 2019 | April 1 2013 |
| Ranking | #898 | #894 |
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