
Quadro K420 vs GRID K140Q

Quadro K420
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GRID K140Q
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 Quadro K420 is positioned at rank 220 and the GRID K140Q is on rank 197, so the GRID K140Q offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Quadro K420
Performance Per Dollar GRID K140Q
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GRID K140Q is the superior choice for raw performance. It leads with a 0.3% higher G3D Mark score. However, the Quadro K420 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Quadro K420 | GRID K140Q |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.3%) | ✅Leading raw performance (+0.3%) |
| Longevity | 🛑Obsolete Architecture (2014 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2013 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | Standard Size (267mm) |
💎 Value Proposition
The Quadro K420 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Quadro K420 holds the technical lead. Priced at $20 (vs $500), it costs 96% less, resulting in a 2393.1% higher cost efficiency score.
| Insight | Quadro K420 | GRID K140Q |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+2393.1%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($20) | ⚠️Higher upfront cost ($500) |
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 Quadro K420 and GRID K140Q

Quadro K420
The Quadro K420 is manufactured by NVIDIA. It was released in July 22 2014. It features the Kepler architecture. The core clock ranges from 771 MHz to 784 MHz. It has 1344 shading units. The thermal design power (TDP) is 108W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 726 points. Launch price was $854.99.

GRID K140Q
The GRID K140Q is manufactured by NVIDIA. It was released in June 28 2013. 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: 728 points. Launch price was $469.
Graphics Performance
The Quadro K420 scores 726 and the GRID K140Q reaches 728 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The Quadro K420 is built on Kepler while the GRID K140Q uses Kepler, both on a 28 nm process. Shader units: 1,344 (Quadro K420) vs 1,536 (GRID K140Q). Raw compute: 2.107 TFLOPS (Quadro K420) vs 2.289 TFLOPS (GRID K140Q).
| Feature | Quadro K420 | GRID K140Q |
|---|---|---|
| G3D Mark Score | 726 | 728 |
| Architecture | Kepler | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 1344 | 1536+14% |
| Compute (TFLOPS) | 2.107 TFLOPS | 2.289 TFLOPS+9% |
| ROPs | 32 | 32 |
| TMUs | 112 | 128+14% |
| L1 Cache | 112 KB | 128 KB+14% |
| L2 Cache | 512 KB | 512 KB |
Advanced Features (DLSS/FSR)
| Feature | Quadro K420 | GRID K140Q |
|---|---|---|
| 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 Quadro K420 comes with 1 GB of VRAM, while the GRID K140Q has 512 MB. The Quadro K420 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 64-bit.
| Feature | Quadro K420 | GRID K140Q |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 64-bit |
| L2 Cache | 512 KB | 512 KB |
Power & Dimensions
The Quadro K420 draws 108W versus the GRID K140Q's 225W — a 70.3% difference. The Quadro K420 is more power-efficient. Recommended PSU: 350W (Quadro K420) vs 350W (GRID K140Q). Power connectors: PCIe-powered vs PCIe-powered.
| Feature | Quadro K420 | GRID K140Q |
|---|---|---|
| TDP | 108W-52% | 225W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | — | 267mm |
| Slots | — | 1 |
| Perf/Watt | 6.7+109% | 3.2 |
Value Analysis
The Quadro K420 launched at $150 MSRP and currently averages $20, while the GRID K140Q launched at $125 and now averages $500. The Quadro K420 costs 96% less ($480 savings) at current market prices. Performance per dollar (G3D Mark / price): 36.3 (Quadro K420) vs 1.5 (GRID K140Q) — the Quadro K420 offers 2320% better value. The Quadro K420 is the newer GPU (2014 vs 2013).
| Feature | Quadro K420 | GRID K140Q |
|---|---|---|
| MSRP | $150 | $125-17% |
| Avg Price (30d) | $20-96% | $500 |
| Performance per Dollar | 36.3+2320% | 1.5 |
| Codename | GK104 | GK104 |
| Release | July 22 2014 | June 28 2013 |
| Ranking | #475 | #628 |
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