Radeon HD 6490M vs GeForce GT 620
Radeon HD 6490M
Popular choices:
GeForce GT 620
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 HD 6490M is positioned at rank 255 and the GeForce GT 620 is on rank 190, 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 Radeon HD 6490M
Performance Per Dollar GeForce GT 620
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 620 is the superior choice for raw performance. It leads with a 2.6% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 6490M.
| Insight | Radeon HD 6490M | GeForce GT 620 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-2.6%) | ✅Leading raw performance (+2.6%) |
| Longevity | 🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
While current pricing data is unavailable, the GeForce GT 620 remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 HD 6490M and GeForce GT 620
Radeon HD 6490M
The Radeon HD 6490M is manufactured by AMD. It was released in January 4 2011. It features the TeraScale 2 architecture. The core clock speed is 680 MHz. It has 960 shading units. The thermal design power (TDP) is 75W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 378 points.
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.
Graphics Performance
The Radeon HD 6490M scores 378 and the GeForce GT 620 reaches 388 in the G3D Mark benchmark — just a 2.6% difference, making them near-identical in rasterization performance. The Radeon HD 6490M is built on TeraScale 2 while the GeForce GT 620 uses Kepler, both on 40 nm vs 28 nm. Shader units: 960 (Radeon HD 6490M) vs 384 (GeForce GT 620). Raw compute: 1.306 TFLOPS (Radeon HD 6490M) vs 0.6927 TFLOPS (GeForce GT 620).
| Feature | Radeon HD 6490M | GeForce GT 620 |
|---|---|---|
| G3D Mark Score | 378 | 388+3% |
| Architecture | TeraScale 2 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 960+150% | 384 |
| Compute (TFLOPS) | 1.306 TFLOPS+89% | 0.6927 TFLOPS |
| ROPs | 32+100% | 16 |
| TMUs | 48+50% | 32 |
| L1 Cache | 192 KB+500% | 32 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6490M | GeForce GT 620 |
|---|---|---|
| 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 video memory. Bus width: System vs 128-bit. L2 Cache: 512 KB (Radeon HD 6490M) vs 256 KB (GeForce GT 620) — the Radeon HD 6490M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 6490M | GeForce GT 620 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 128-bit |
| L2 Cache | 512 KB+100% | 256 KB |
Power & Dimensions
The Radeon HD 6490M draws 75W versus the GeForce GT 620's 65W — a 14.3% difference. The GeForce GT 620 is more power-efficient. Recommended PSU: 350W (Radeon HD 6490M) vs 250W (GeForce GT 620). Power connectors: 1x 6-pin vs None.
| Feature | Radeon HD 6490M | GeForce GT 620 |
|---|---|---|
| TDP | 75W | 65W-13% |
| Recommended PSU | 350W | 250W-29% |
| Power Connector | 1x 6-pin | None |
| Length | — | 145mm |
| Height | — | 111mm |
| Slots | — | 1 |
| Temp (Load) | — | 70°C |
| Perf/Watt | 5.0 | 6.0+20% |
Value Analysis
The GeForce GT 620 is the newer GPU (2012 vs 2011).
| Feature | Radeon HD 6490M | GeForce GT 620 |
|---|---|---|
| MSRP | — | $59 |
| Avg Price (30d) | — | $20 |
| Codename | Blackcomb | GK107 |
| Release | January 4 2011 | June 5 2012 |
| Ranking | #654 | #837 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
You May Also Compare
Similar GPU comparisons based on Radeon HD 6490M and GeForce GT 620
