GeForce GT 645M vs GRID K220Q
GeForce GT 645M
Popular choices:
GRID K220Q
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 GeForce GT 645M is positioned at rank 80 and the GRID K220Q is on rank 299, 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 GeForce GT 645M
Performance Per Dollar GRID K220Q
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 | GeForce GT 645M | GRID K220Q |
|---|---|---|
| Performance | ✅Leading raw performance (+3.6%) | ❌Lower raw frame rates (-3.6%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2014 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+300%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| 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 GeForce GT 645M and GRID K220Q
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.
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.
Graphics Performance
The GeForce GT 645M scores 945 and the GRID K220Q reaches 912 in the G3D Mark benchmark — just a 3.6% difference, making them near-identical in rasterization performance. The GeForce GT 645M is built on Kepler while the GRID K220Q uses Kepler, both on a 28 nm process. Shader units: 384 (GeForce GT 645M) vs 1,536 (GRID K220Q). Raw compute: 0.5445 TFLOPS (GeForce GT 645M) vs 2.289 TFLOPS (GRID K220Q).
| Feature | GeForce GT 645M | GRID K220Q |
|---|---|---|
| G3D Mark Score | 945+4% | 912 |
| Architecture | Kepler | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 1536+300% |
| Compute (TFLOPS) | 0.5445 TFLOPS | 2.289 TFLOPS+320% |
| ROPs | 16 | 32+100% |
| TMUs | 32 | 128+300% |
| L1 Cache | 32 KB | 128 KB+300% |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 645M | GRID K220Q |
|---|---|---|
| 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 645M comes with 2 GB of VRAM, while the GRID K220Q has 512 MB. The GeForce GT 645M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit. L2 Cache: 256 KB (GeForce GT 645M) vs 512 KB (GRID K220Q) — the GRID K220Q has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 645M | GRID K220Q |
|---|---|---|
| VRAM Capacity | 2 GB+300% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 256 KB | 512 KB+100% |
Display & API Support
DirectX support: 11.0 (GeForce GT 645M) vs 11_0 (GRID K220Q). Maximum simultaneous displays: 1 vs 2.
| Feature | GeForce GT 645M | GRID K220Q |
|---|---|---|
| DirectX | 11.0 | 11_0 |
| Max Displays | 1 | 2+100% |
Power & Dimensions
The GeForce GT 645M draws 32W versus the GRID K220Q's 225W — a 150.2% difference. The GeForce GT 645M is more power-efficient. Recommended PSU: 350W (GeForce GT 645M) vs 350W (GRID K220Q). Power connectors: PCIe-powered vs PCIe-powered. Card length: 0mm vs 265mm, occupying 0 vs 2 slots.
| Feature | GeForce GT 645M | GRID K220Q |
|---|---|---|
| TDP | 32W-86% | 225W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 0mm | 265mm |
| Height | 0mm | — |
| Slots | 0-100% | 2 |
| Temp (Load) | 70°C | — |
| Perf/Watt | 29.5+620% | 4.1 |
Value Analysis
The GRID K220Q is the newer GPU (2014 vs 2012).
| Feature | GeForce GT 645M | GRID K220Q |
|---|---|---|
| MSRP | — | $469 |
| Avg Price (30d) | — | $40 |
| Codename | GK107 | GK104 |
| Release | October 1 2012 | July 2 2014 |
| Ranking | #903 | #907 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
You May Also Compare
Similar GPU comparisons based on GeForce GT 645M and GRID K220Q
