CPU
GPU
Radeon HD 6670
Popular choices:
Quadro K420
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 Radeon HD 6670 is positioned at rank 172 and the Quadro K420 is on rank 220, so the Radeon HD 6670 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD 6670
Performance Per Dollar Quadro K420
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Quadro K420 is the superior choice for raw performance. It leads with a 0.1% higher G3D Mark score. However, the Radeon HD 6670 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon HD 6670 | Quadro K420 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.1%) | ✅Leading raw performance (+0.1%) |
| Longevity | 🛑Obsolete Architecture (2010 / TeraScale 3 (2010−2013)) | 🛑Obsolete Architecture (2014 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 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 $99), it costs 80% less, resulting in a 395.7% higher cost efficiency score.
| Insight | Radeon HD 6670 | Quadro K420 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+395.7%) |
| Upfront Cost | ⚠️Higher upfront cost ($99) | ✅More affordable ($20) |
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 Radeon HD 6670 and Quadro K420
Radeon HD 6670
The Radeon HD 6670 is manufactured by AMD. It was released in December 14 2010. It features the TeraScale 3 architecture. The boost clock speed is 880 MHz. It has 1536 shading units. The thermal design power (TDP) is 250W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 725 points. Launch price was $369.
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.
Graphics Performance
The Radeon HD 6670 scores 725 and the Quadro K420 reaches 726 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The Radeon HD 6670 is built on TeraScale 3 while the Quadro K420 uses Kepler, both on 40 nm vs 28 nm. Shader units: 1,536 (Radeon HD 6670) vs 1,344 (Quadro K420). Raw compute: 2.703 TFLOPS (Radeon HD 6670) vs 2.107 TFLOPS (Quadro K420). Boost clocks: 880 MHz vs 784 MHz.
| Feature | Radeon HD 6670 | Quadro K420 |
|---|---|---|
| G3D Mark Score | 725 | 726 |
| Architecture | TeraScale 3 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 1536+14% | 1344 |
| Compute (TFLOPS) | 2.703 TFLOPS+28% | 2.107 TFLOPS |
| Boost Clock | 880 MHz+12% | 784 MHz |
| ROPs | 32 | 32 |
| TMUs | 96 | 112+17% |
| L1 Cache | 192 KB+71% | 112 KB |
| L2 Cache | 512 KB | 512 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6670 | Quadro K420 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
The Radeon HD 6670 comes with 2 GB of VRAM, while the Quadro K420 has 1 GB. The Radeon HD 6670 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit.
| Feature | Radeon HD 6670 | Quadro K420 |
|---|---|---|
| VRAM Capacity | 2 GB+100% | 1 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 512 KB | 512 KB |
Power & Dimensions
The Radeon HD 6670 draws 250W versus the Quadro K420's 108W — a 79.3% difference. The Quadro K420 is more power-efficient. Recommended PSU: 250W (Radeon HD 6670) vs 350W (Quadro K420). Power connectors: None vs PCIe-powered.
| Feature | Radeon HD 6670 | Quadro K420 |
|---|---|---|
| TDP | 250W | 108W-57% |
| Recommended PSU | 250W-29% | 350W |
| Power Connector | None | PCIe-powered |
| Length | 168mm | — |
| Height | 111mm | — |
| Slots | 1 | — |
| Temp (Load) | 75 | — |
| Perf/Watt | 2.9 | 6.7+131% |
Value Analysis
The Radeon HD 6670 launched at $99 MSRP and currently averages $99, while the Quadro K420 launched at $150 and now averages $20. The Quadro K420 costs 79.8% less ($79 savings) at current market prices. Performance per dollar (G3D Mark / price): 7.3 (Radeon HD 6670) vs 36.3 (Quadro K420) — the Quadro K420 offers 397.3% better value. The Quadro K420 is the newer GPU (2014 vs 2010).
| Feature | Radeon HD 6670 | Quadro K420 |
|---|---|---|
| MSRP | $99-34% | $150 |
| Avg Price (30d) | $99 | $20-80% |
| Performance per Dollar | 7.3 | 36.3+397% |
| Codename | Cayman | GK104 |
| Release | December 14 2010 | July 22 2014 |
| Ranking | #596 | #475 |
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