
GeForce GT 620 vs Radeon HD 6550D

GeForce GT 620
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Radeon HD 6550D
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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. The GeForce GT 620 is positioned at rank 190 and the Radeon HD 6550D is on rank 207, so the GeForce GT 620 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GeForce GT 620
Performance Per Dollar Radeon HD 6550D
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 6550D is the superior choice for raw performance. It leads with a 3.1% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GT 620.
| Insight | GeForce GT 620 | Radeon HD 6550D |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3.1%) | ✅Leading raw performance (+3.1%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2010 / TeraScale 3 (2010−2013)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
The GeForce GT 620 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GT 620 holds the technical lead. Priced at $20 (vs $70), it costs 71% less, resulting in a 239.5% higher cost efficiency score.
| Insight | GeForce GT 620 | Radeon HD 6550D |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+239.5%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($20) | ⚠️Higher upfront cost ($70) |
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 GeForce GT 620 and Radeon HD 6550D

GeForce GT 620
The GeForce GT 620 is manufactured by NVIDIA. It was released in June 5 2012. It features the Kepler architecture. The core clock speed is 902 MHz. It has 384 shading units. The thermal design power (TDP) is 65W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 388 points. Launch price was $99.

Radeon HD 6550D
The Radeon HD 6550D is manufactured by AMD. It was released in December 14 2010. It features the TeraScale 3 architecture. The boost clock speed is 800 MHz. It has 1408 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 400 points. Launch price was $299.
Graphics Performance
The GeForce GT 620 scores 388 and the Radeon HD 6550D reaches 400 in the G3D Mark benchmark — just a 3.1% difference, making them near-identical in rasterization performance. The GeForce GT 620 is built on Kepler while the Radeon HD 6550D uses TeraScale 3, both on 28 nm vs 40 nm. Shader units: 384 (GeForce GT 620) vs 1,408 (Radeon HD 6550D). Raw compute: 0.6927 TFLOPS (GeForce GT 620) vs 2.253 TFLOPS (Radeon HD 6550D).
| Feature | GeForce GT 620 | Radeon HD 6550D |
|---|---|---|
| G3D Mark Score | 388 | 400+3% |
| Architecture | Kepler | TeraScale 3 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 384 | 1408+267% |
| Compute (TFLOPS) | 0.6927 TFLOPS | 2.253 TFLOPS+225% |
| ROPs | 16 | 32+100% |
| TMUs | 32 | 88+175% |
| L1 Cache | 32 KB | 352 KB+1000% |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 620 | Radeon HD 6550D |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 512 MB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 256 KB (GeForce GT 620) vs 512 KB (Radeon HD 6550D) — the Radeon HD 6550D has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 620 | Radeon HD 6550D |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 256 KB | 512 KB+100% |
Power & Dimensions
The GeForce GT 620 draws 65W versus the Radeon HD 6550D's 200W — a 101.9% difference. The GeForce GT 620 is more power-efficient. Recommended PSU: 250W (GeForce GT 620) vs 350W (Radeon HD 6550D). Power connectors: None vs 1x 6-pin.
| Feature | GeForce GT 620 | Radeon HD 6550D |
|---|---|---|
| TDP | 65W-68% | 200W |
| Recommended PSU | 250W-29% | 350W |
| Power Connector | None | 1x 6-pin |
| Length | 145mm | — |
| Height | 111mm | — |
| Slots | 1 | — |
| Temp (Load) | 70°C | — |
| Perf/Watt | 6.0+200% | 2.0 |
Value Analysis
The GeForce GT 620 launched at $59 MSRP and currently averages $20, while the Radeon HD 6550D launched at $70 and now averages $70. The GeForce GT 620 costs 71.4% less ($50 savings) at current market prices. Performance per dollar (G3D Mark / price): 19.4 (GeForce GT 620) vs 5.7 (Radeon HD 6550D) — the GeForce GT 620 offers 240.4% better value. The GeForce GT 620 is the newer GPU (2012 vs 2010).
| Feature | GeForce GT 620 | Radeon HD 6550D |
|---|---|---|
| MSRP | $59-16% | $70 |
| Avg Price (30d) | $20-71% | $70 |
| Performance per Dollar | 19.4+240% | 5.7 |
| Codename | GK107 | Cayman |
| Release | June 5 2012 | December 14 2010 |
| Ranking | #837 | #623 |
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