
Radeon HD 6670
Popular choices:

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 Radeon HD 6670 is positioned at rank 172 and the GRID K140Q is on rank 197, 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 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 0.4% 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 | GRID K140Q |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.4%) | ✅Leading raw performance (+0.4%) |
| Longevity | 🛑Obsolete Architecture (2010 / TeraScale 3 (2010−2013)) | 🛑Obsolete Architecture (2013 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+300%) | ❌ Less VRAM capacity |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | 📏 Compact / SFF Friendly | Standard Size (267mm) |
💎 Value Proposition
The Radeon HD 6670 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 6670 holds the technical lead. Priced at $99 (vs $500), it costs 80% less, resulting in a 403% higher cost efficiency score.
| Insight | Radeon HD 6670 | GRID K140Q |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+403%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($99) | ⚠️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 Radeon HD 6670 and GRID K140Q

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.

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 Radeon HD 6670 scores 725 and the GRID K140Q reaches 728 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The Radeon HD 6670 is built on TeraScale 3 while the GRID K140Q uses Kepler, both on 40 nm vs 28 nm. Shader units: 1,536 (Radeon HD 6670) vs 1,536 (GRID K140Q). Raw compute: 2.703 TFLOPS (Radeon HD 6670) vs 2.289 TFLOPS (GRID K140Q).
| Feature | Radeon HD 6670 | GRID K140Q |
|---|---|---|
| G3D Mark Score | 725 | 728 |
| Architecture | TeraScale 3 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 1536 | 1536 |
| Compute (TFLOPS) | 2.703 TFLOPS+18% | 2.289 TFLOPS |
| ROPs | 32 | 32 |
| TMUs | 96 | 128+33% |
| L1 Cache | 192 KB+50% | 128 KB |
| L2 Cache | 512 KB | 512 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6670 | GRID K140Q |
|---|---|---|
| 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 GRID K140Q has 512 MB. The Radeon HD 6670 offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit.
| Feature | Radeon HD 6670 | GRID K140Q |
|---|---|---|
| VRAM Capacity | 2 GB+300% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 512 KB | 512 KB |
Display & API Support
DirectX support: 11.2 (11_0) (Radeon HD 6670) vs 11_0 (GRID K140Q). Maximum simultaneous displays: 3 vs 0.
| Feature | Radeon HD 6670 | GRID K140Q |
|---|---|---|
| DirectX | 11.2 (11_0)+2% | 11_0 |
| Max Displays | 3 | 0 |
Media & Encoding
Hardware encoder: None (Radeon HD 6670) vs NVENC 3rd Gen (GRID K140Q). Decoder: UVD 3.0 vs NVDEC 1st Gen.
| Feature | Radeon HD 6670 | GRID K140Q |
|---|---|---|
| Encoder | None | NVENC 3rd Gen |
| Decoder | UVD 3.0 | NVDEC 1st Gen |
| Codecs | H.264,VC-1,MPEG-2,MPEG-4 | — |
Power & Dimensions
The Radeon HD 6670 draws 250W versus the GRID K140Q's 225W — a 10.5% difference. The GRID K140Q is more power-efficient. Recommended PSU: 250W (Radeon HD 6670) vs 350W (GRID K140Q). Power connectors: None vs PCIe-powered. Card length: 168mm vs 267mm, occupying 1 vs 1 slots.
| Feature | Radeon HD 6670 | GRID K140Q |
|---|---|---|
| TDP | 250W | 225W-10% |
| Recommended PSU | 250W-29% | 350W |
| Power Connector | None | PCIe-powered |
| Length | 168mm | 267mm |
| Height | 111mm | — |
| Slots | 1 | 1 |
| Temp (Load) | 75 | — |
| Perf/Watt | 2.9 | 3.2+10% |
Value Analysis
The Radeon HD 6670 launched at $99 MSRP and currently averages $99, while the GRID K140Q launched at $125 and now averages $500. The Radeon HD 6670 costs 80.2% less ($401 savings) at current market prices. Performance per dollar (G3D Mark / price): 7.3 (Radeon HD 6670) vs 1.5 (GRID K140Q) — the Radeon HD 6670 offers 386.7% better value. The GRID K140Q is the newer GPU (2013 vs 2010).
| Feature | Radeon HD 6670 | GRID K140Q |
|---|---|---|
| MSRP | $99-21% | $125 |
| Avg Price (30d) | $99-80% | $500 |
| Performance per Dollar | 7.3+387% | 1.5 |
| Codename | Cayman | GK104 |
| Release | December 14 2010 | June 28 2013 |
| Ranking | #596 | #628 |
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