GRID K220Q vs GeForce GT 645M
GRID K220Q
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GeForce GT 645M
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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 GRID K220Q is positioned at rank 299 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 K220Q
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 K220Q.
| Insight | GRID K220Q | GeForce GT 645M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3.6%) | ✅Leading raw performance (+3.6%) |
| Longevity | 🛑Obsolete Architecture (2014 / Kepler (2012−2018)) | 🛑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 | Standard Size (265mm) | — |
💎 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 K220Q and GeForce GT 645M
GRID K220Q
The GRID K220Q is manufactured by NVIDIA. It was released in July 2 2014. It features the Kepler architecture. The core clock speed is 745 MHz. It has 1536 shading units. The thermal design power (TDP) is 225W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 912 points. Launch price was $469.
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 K220Q 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 K220Q is built on Kepler while the GeForce GT 645M uses Kepler, both on a 28 nm process. Shader units: 1,536 (GRID K220Q) vs 384 (GeForce GT 645M). Raw compute: 2.289 TFLOPS (GRID K220Q) vs 0.5445 TFLOPS (GeForce GT 645M).
| Feature | GRID K220Q | GeForce GT 645M |
|---|---|---|
| G3D Mark Score | 912 | 945+4% |
| Architecture | Kepler | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 1536+300% | 384 |
| Compute (TFLOPS) | 2.289 TFLOPS+320% | 0.5445 TFLOPS |
| ROPs | 32+100% | 16 |
| TMUs | 128+300% | 32 |
| L1 Cache | 128 KB+300% | 32 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | GRID K220Q | 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 K220Q 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: 512 KB (GRID K220Q) vs 256 KB (GeForce GT 645M) — the GRID K220Q has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GRID K220Q | GeForce GT 645M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 2 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 512 KB+100% | 256 KB |
Display & API Support
DirectX support: 11_0 (GRID K220Q) vs 11.0 (GeForce GT 645M). Maximum simultaneous displays: 2 vs 1.
| Feature | GRID K220Q | GeForce GT 645M |
|---|---|---|
| DirectX | 11_0 | 11.0 |
| Max Displays | 2+100% | 1 |
Power & Dimensions
The GRID K220Q draws 225W versus the GeForce GT 645M's 32W — a 150.2% difference. The GeForce GT 645M is more power-efficient. Recommended PSU: 350W (GRID K220Q) vs 350W (GeForce GT 645M). Power connectors: PCIe-powered vs PCIe-powered. Card length: 265mm vs 0mm, occupying 2 vs 0 slots.
| Feature | GRID K220Q | GeForce GT 645M |
|---|---|---|
| TDP | 225W | 32W-86% |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 265mm | 0mm |
| Height | — | 0mm |
| Slots | 2 | 0-100% |
| Temp (Load) | — | 70°C |
| Perf/Watt | 4.1 | 29.5+620% |
Value Analysis
The GRID K220Q is the newer GPU (2014 vs 2012).
| Feature | GRID K220Q | GeForce GT 645M |
|---|---|---|
| MSRP | $469 | — |
| Avg Price (30d) | $40 | — |
| Codename | GK104 | GK107 |
| Release | July 2 2014 | October 1 2012 |
| Ranking | #907 | #903 |
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