GeForce GT 820M vs GeForce GT 635M
GeForce GT 820M
Popular choices:
GeForce GT 635M
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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 820M is positioned at rank 134 and the GeForce GT 635M is on rank 138, 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 GeForce GT 820M
Performance Per Dollar GeForce GT 635M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 820M is the superior choice for raw performance. It leads with a 0.4% higher G3D Mark score. However, the GeForce GT 635M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | GeForce GT 820M | GeForce GT 635M |
|---|---|---|
| Performance | ✅Leading raw performance (+0.4%) | ❌Lower raw frame rates (-0.4%) |
| Longevity | 🛑Obsolete Architecture (2014 / Maxwell 2.0 (2014−2019)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+200%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| 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 GeForce GT 820M and GeForce GT 635M
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.
GeForce GT 635M
The GeForce GT 635M is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 900 MHz to 950 MHz. It has 384 shading units. The thermal design power (TDP) is 45W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 540 points.
Graphics Performance
The GeForce GT 820M scores 542 and the GeForce GT 635M reaches 540 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The GeForce GT 820M is built on Maxwell 2.0 while the GeForce GT 635M uses Kepler, both on a 28 nm process. Shader units: 1,536 (GeForce GT 820M) vs 384 (GeForce GT 635M). Raw compute: 1.659 TFLOPS (GeForce GT 820M) vs 0.7296 TFLOPS (GeForce GT 635M). Boost clocks: 1127 MHz vs 950 MHz.
| Feature | GeForce GT 820M | GeForce GT 635M |
|---|---|---|
| G3D Mark Score | 542 | 540 |
| Architecture | Maxwell 2.0 | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 1536+300% | 384 |
| Compute (TFLOPS) | 1.659 TFLOPS+127% | 0.7296 TFLOPS |
| Boost Clock | 1127 MHz+19% | 950 MHz |
| ROPs | 64+300% | 16 |
| TMUs | 96+200% | 32 |
| L1 Cache | 576 KB+1700% | 32 KB |
| L2 Cache | 2 MB+700% | 0.25 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 820M | GeForce GT 635M |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | Standard |
Video Memory (VRAM)
The GeForce GT 820M comes with 512 MB of VRAM, while the GeForce GT 635M has 2 GB. The GeForce GT 635M offers 200% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 2 MB (GeForce GT 820M) vs 0.25 MB (GeForce GT 635M) — the GeForce GT 820M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 820M | GeForce GT 635M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 1.5 GB+200% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 2 MB+700% | 0.25 MB |
Display & API Support
DirectX support: 11.0 (GeForce GT 820M) vs 11.0 (GeForce GT 635M). OpenGL: 4.0 vs 4.1. Maximum simultaneous displays: 1 vs 2.
| Feature | GeForce GT 820M | GeForce GT 635M |
|---|---|---|
| DirectX | 11.0 | 11.0 |
| OpenGL | 4.0 | 4.1+2% |
| Max Displays | 1 | 2+100% |
Media & Encoding
Hardware encoder: No (GeForce GT 820M) vs PureVideo HD (VP4) (GeForce GT 635M). Decoder: PureVideo HD VP4 vs PureVideo HD (VP4). Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 820M) vs H.264,MPEG-2,VC-1 (GeForce GT 635M).
| Feature | GeForce GT 820M | GeForce GT 635M |
|---|---|---|
| Encoder | No | PureVideo HD (VP4) |
| Decoder | PureVideo HD VP4 | PureVideo HD (VP4) |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP | H.264,MPEG-2,VC-1 |
Power & Dimensions
The GeForce GT 820M draws 100W versus the GeForce GT 635M's 45W — a 75.9% difference. The GeForce GT 635M is more power-efficient. Recommended PSU: 350W (GeForce GT 820M) vs 350W (GeForce GT 635M). Power connectors: PCIe-powered vs PCIe-powered. Typical load temperature: 70°C vs 80.
| Feature | GeForce GT 820M | GeForce GT 635M |
|---|---|---|
| TDP | 100W | 45W-55% |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | 0 |
| Temp (Load) | 70°C-13% | 80 |
| Perf/Watt | 5.4 | 12.0+122% |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
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