
Radeon 820M vs Quadro K620

Radeon 820M
Popular choices:

Quadro K620
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 820M is positioned at rank 62 and the Quadro K620 is on rank 99, so the Radeon 820M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon 820M
Performance Per Dollar Quadro K620
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon 820M is significantly newer (2024 vs 2014). The Radeon 820M likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Quadro K620 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Quadro K620 is the superior choice for raw performance. It leads with a 3.3% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon 820M.
| Insight | Radeon 820M | Quadro K620 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3.3%) | ✅Leading raw performance (+3.3%) |
| Longevity | RDNA 3+ (2024) (4nm) | 🛑Obsolete Architecture (2014 / Maxwell (2014−2017)) |
| 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 820M offers a compelling cost-to-performance ratio. Priced at $25 versus $30 for the Quadro K620, it costs 17% less. While it maintains basic entry-level capabilities, this results in a 16.2% higher cost efficiency score.
| Insight | Radeon 820M | Quadro K620 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+16.2%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($25) | ⚠️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 820M and Quadro K620

Radeon 820M
The Radeon 820M is manufactured by AMD. It was released in June 2 2024. It features the RDNA 3+ architecture. The boost clock speed is 2900 MHz. It has 128 shading units. The thermal design power (TDP) is 30W. Manufactured using 4 nm process technology. G3D Mark benchmark score: 2,143 points.

Quadro K620
The Quadro K620 is manufactured by NVIDIA. It was released in July 22 2014. It features the Maxwell architecture. The core clock ranges from 1058 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 45W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,213 points. Launch price was $189.89.
Graphics Performance
The Radeon 820M scores 2,143 and the Quadro K620 reaches 2,213 in the G3D Mark benchmark — just a 3.3% difference, making them near-identical in rasterization performance. The Radeon 820M is built on RDNA 3+ while the Quadro K620 uses Maxwell, both on 4 nm vs 28 nm. Shader units: 128 (Radeon 820M) vs 384 (Quadro K620). Boost clocks: 2900 MHz vs 1124 MHz.
| Feature | Radeon 820M | Quadro K620 |
|---|---|---|
| G3D Mark Score | 2,143 | 2,213+3% |
| Architecture | RDNA 3+ | Maxwell |
| Process Node | 4 nm | 28 nm |
| Shading Units | 128 | 384+200% |
| Boost Clock | 2900 MHz+158% | 1124 MHz |
Advanced Features (DLSS/FSR)
| Feature | Radeon 820M | Quadro K620 |
|---|---|---|
| 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 2 GB of video memory. Bus width: System vs 64-bit.
| Feature | Radeon 820M | Quadro K620 |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | Shared | GDDR5 |
| Bus Width | System | 64-bit |
Power & Dimensions
The Radeon 820M draws 30W versus the Quadro K620's 45W — a 40% difference. The Radeon 820M is more power-efficient. Recommended PSU: 350W (Radeon 820M) vs 350W (Quadro K620). Power connectors: PCIe-powered vs PCIe-powered.
| Feature | Radeon 820M | Quadro K620 |
|---|---|---|
| TDP | 30W-33% | 45W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | — |
| Temp (Load) | 80 | — |
| Perf/Watt | 71.4+45% | 49.2 |
Value Analysis
The Radeon 820M costs 16.7% less ($5 savings) at current market prices. Performance per dollar (G3D Mark / price): 85.7 (Radeon 820M) vs 73.8 (Quadro K620) — the Radeon 820M offers 16.1% better value. The Radeon 820M is the newer GPU (2024 vs 2014).
| Feature | Radeon 820M | Quadro K620 |
|---|---|---|
| MSRP | — | $150 |
| Avg Price (30d) | $25-17% | $30 |
| Performance per Dollar | 85.7+16% | 73.8 |
| Codename | Krackan Point | GM107 |
| Release | June 2 2024 | July 22 2014 |
| Ranking | #669 | #660 |
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