CPU
GPU
GRID M6-0B
Popular choices:
GeForce GT 645M
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 GRID M6-0B is positioned at rank 374 and the GeForce GT 645M is on rank 80, so the GeForce GT 645M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GRID M6-0B
Performance Per Dollar GeForce GT 645M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 645M is the superior choice for raw performance. It leads with a 3.6% higher G3D Mark score and 300% more VRAM (2 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GRID M6-0B.
| Insight | GRID M6-0B | GeForce GT 645M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3.6%) | ✅Leading raw performance (+3.6%) |
| Longevity | 🛑Obsolete Architecture (2015 / Maxwell 2.0 (2014−2019)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+300%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce GT 645M 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 GRID M6-0B and GeForce GT 645M
GRID M6-0B
The GRID M6-0B is manufactured by NVIDIA. It was released in August 30 2015. It features the Maxwell 2.0 architecture. The core clock speed is 722 MHz. It has 1536 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 912 points.
GeForce GT 645M
The GeForce GT 645M is manufactured by NVIDIA. It was released in October 1 2012. It features the Kepler architecture. The core clock speed is Up to 710 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 945 points.
Graphics Performance
The GRID M6-0B scores 912 and the GeForce GT 645M reaches 945 in the G3D Mark benchmark — just a 3.6% difference, making them near-identical in rasterization performance. The GRID M6-0B is built on Maxwell 2.0 while the GeForce GT 645M uses Kepler, both on a 28 nm process. Shader units: 1,536 (GRID M6-0B) vs 384 (GeForce GT 645M). Raw compute: 2.218 TFLOPS (GRID M6-0B) vs 0.5445 TFLOPS (GeForce GT 645M).
| Feature | GRID M6-0B | GeForce GT 645M |
|---|---|---|
| G3D Mark Score | 912 | 945+4% |
| Architecture | Maxwell 2.0 | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 1536+300% | 384 |
| Compute (TFLOPS) | 2.218 TFLOPS+307% | 0.5445 TFLOPS |
| 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 | GRID M6-0B | GeForce GT 645M |
|---|---|---|
| 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 GRID M6-0B comes with 512 MB of VRAM, while the GeForce GT 645M has 2 GB. The GeForce GT 645M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 2 MB (GRID M6-0B) vs 0.25 MB (GeForce GT 645M) — the GRID M6-0B has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GRID M6-0B | GeForce GT 645M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 2 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 2 MB+700% | 0.25 MB |
Display & API Support
DirectX support: 12_1 (GRID M6-0B) vs 11.0 (GeForce GT 645M). Maximum simultaneous displays: 0 vs 1.
| Feature | GRID M6-0B | GeForce GT 645M |
|---|---|---|
| DirectX | 12_1+9% | 11.0 |
| Max Displays | 0 | 1 |
Power & Dimensions
The GRID M6-0B draws 100W versus the GeForce GT 645M's 32W — a 103% difference. The GeForce GT 645M is more power-efficient. Recommended PSU: 350W (GRID M6-0B) vs 350W (GeForce GT 645M). Power connectors: PCIe-powered vs PCIe-powered. Card length: 1mm vs 0mm, occupying 0 vs 0 slots.
| Feature | GRID M6-0B | GeForce GT 645M |
|---|---|---|
| TDP | 100W | 32W-68% |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 1mm | 0mm |
| Height | — | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | — | 70°C |
| Perf/Watt | 9.1 | 29.5+224% |
Value Analysis
The GRID M6-0B is the newer GPU (2015 vs 2012).
| Feature | GRID M6-0B | GeForce GT 645M |
|---|---|---|
| MSRP | $1500 | — |
| Avg Price (30d) | $100 | — |
| Codename | GM204 | GK107 |
| Release | August 30 2015 | October 1 2012 |
| Ranking | #535 | #903 |
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