Radeon 6600M vs GeForce GT 820M
Radeon 6600M
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GeForce GT 820M
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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 Radeon 6600M is positioned at rank 587 and the GeForce GT 820M is on rank 134, so the GeForce GT 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 6600M
Performance Per Dollar GeForce GT 820M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon 6600M is significantly newer (2023 vs 2014). The Radeon 6600M likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GT 820M lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The GeForce GT 820M is the superior choice for raw performance. It leads with a 1.1% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon 6600M.
| Insight | Radeon 6600M | GeForce GT 820M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.1%) | ✅Leading raw performance (+1.1%) |
| Longevity | RDNA 2.0 (2020−2025) (6nm) | 🛑Obsolete Architecture (2014 / Maxwell 2.0 (2014−2019)) |
| 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
While current pricing data is unavailable, the GeForce GT 820M 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 6600M and GeForce GT 820M
Radeon 6600M
The Radeon 6600M is manufactured by AMD. It was released in January 3 2023. It features the RDNA 2.0 architecture. The core clock ranges from 1500 MHz to 1900 MHz. It has 384 shading units. The thermal design power (TDP) is 40W. Manufactured using 6 nm process technology. It features 6 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 536 points.
GeForce GT 820M
The GeForce GT 820M is manufactured by NVIDIA. It was released in October 7 2014. It features the Maxwell 2.0 architecture. The core clock ranges from 1038 MHz to 1127 MHz. It has 1536 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 542 points.
Graphics Performance
The Radeon 6600M scores 536 and the GeForce GT 820M reaches 542 in the G3D Mark benchmark — just a 1.1% difference, making them near-identical in rasterization performance. The Radeon 6600M is built on RDNA 2.0 while the GeForce GT 820M uses Maxwell 2.0, both on 6 nm vs 28 nm. Shader units: 384 (Radeon 6600M) vs 1,536 (GeForce GT 820M). Raw compute: 1.459 TFLOPS (Radeon 6600M) vs 1.659 TFLOPS (GeForce GT 820M). Boost clocks: 1900 MHz vs 1127 MHz.
| Feature | Radeon 6600M | GeForce GT 820M |
|---|---|---|
| G3D Mark Score | 536 | 542+1% |
| Architecture | RDNA 2.0 | Maxwell 2.0 |
| Process Node | 6 nm | 28 nm |
| Shading Units | 384 | 1536+300% |
| Compute (TFLOPS) | 1.459 TFLOPS | 1.659 TFLOPS+14% |
| Boost Clock | 1900 MHz+69% | 1127 MHz |
| ROPs | 16 | 64+300% |
| TMUs | 24 | 96+300% |
| L1 Cache | 128 KB | 576 KB+350% |
| L2 Cache | 2 MB | 2 MB |
Advanced Features (DLSS/FSR)
| Feature | Radeon 6600M | GeForce GT 820M |
|---|---|---|
| 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 64-bit.
| Feature | Radeon 6600M | GeForce GT 820M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 64-bit |
| L2 Cache | 2 MB | 2 MB |
Power & Dimensions
The Radeon 6600M draws 40W versus the GeForce GT 820M's 100W — a 85.7% difference. The Radeon 6600M is more power-efficient. Recommended PSU: 350W (Radeon 6600M) vs 350W (GeForce GT 820M). Power connectors: PCIe-powered vs PCIe-powered.
| Feature | Radeon 6600M | GeForce GT 820M |
|---|---|---|
| TDP | 40W-60% | 100W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | — | 0mm |
| Height | — | 0mm |
| Slots | — | 0 |
| Temp (Load) | — | 70°C |
| Perf/Watt | 13.4+148% | 5.4 |
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