
Radeon HD 6670
Popular choices:

GeForce GT 340
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 GeForce GT 340 is on rank 170, so the GeForce GT 340 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 GeForce GT 340
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 340 is the superior choice for raw performance. It leads with a 1.8% 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 | GeForce GT 340 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.8%) | ✅Leading raw performance (+1.8%) |
| 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 | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GT 340 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GT 340 holds the technical lead. Priced at $20 (vs $99), it costs 80% less, resulting in a 403.9% higher cost efficiency score.
| Insight | Radeon HD 6670 | GeForce GT 340 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+403.9%) |
| 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 GeForce GT 340

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.

GeForce GT 340
The GeForce GT 340 is manufactured by NVIDIA. It was released in May 29 2014. It features the Kepler architecture. The core clock speed is 993 MHz. It has 384 shading units. The thermal design power (TDP) is 64W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 738 points. Launch price was $89.
Graphics Performance
The Radeon HD 6670 scores 725 and the GeForce GT 340 reaches 738 in the G3D Mark benchmark — just a 1.8% difference, making them near-identical in rasterization performance. The Radeon HD 6670 is built on TeraScale 3 while the GeForce GT 340 uses Kepler, both on 40 nm vs 28 nm. Shader units: 1,536 (Radeon HD 6670) vs 384 (GeForce GT 340). Raw compute: 2.703 TFLOPS (Radeon HD 6670) vs 0.7626 TFLOPS (GeForce GT 340).
| Feature | Radeon HD 6670 | GeForce GT 340 |
|---|---|---|
| G3D Mark Score | 725 | 738+2% |
| Architecture | TeraScale 3 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 1536+300% | 384 |
| Compute (TFLOPS) | 2.703 TFLOPS+254% | 0.7626 TFLOPS |
| ROPs | 32+100% | 16 |
| TMUs | 96+200% | 32 |
| L1 Cache | 192 KB+500% | 32 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6670 | GeForce GT 340 |
|---|---|---|
| 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 GeForce GT 340 has 1 GB. The Radeon HD 6670 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 512 KB (Radeon HD 6670) vs 256 KB (GeForce GT 340) — the Radeon HD 6670 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 6670 | GeForce GT 340 |
|---|---|---|
| VRAM Capacity | 2 GB+100% | 1 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 512 KB+100% | 256 KB |
Display & API Support
DirectX support: 11.2 (11_0) (Radeon HD 6670) vs 11.1 (10_1) (GeForce GT 340). Vulkan: N/A vs N/A. OpenGL: 4.4 vs 3.3. Maximum simultaneous displays: 3 vs 2.
| Feature | Radeon HD 6670 | GeForce GT 340 |
|---|---|---|
| DirectX | 11.2 (11_0) | 11.1 (10_1) |
| Vulkan | N/A | N/A |
| OpenGL | 4.4+33% | 3.3 |
| Max Displays | 3+50% | 2 |
Media & Encoding
Hardware encoder: None (Radeon HD 6670) vs None (GeForce GT 340). Decoder: UVD 3.0 vs VP4. Supported codecs: H.264,VC-1,MPEG-2,MPEG-4 (Radeon HD 6670) vs H.264,MPEG-2,VC-1 (GeForce GT 340).
| Feature | Radeon HD 6670 | GeForce GT 340 |
|---|---|---|
| Encoder | None | None |
| Decoder | UVD 3.0 | VP4 |
| Codecs | H.264,VC-1,MPEG-2,MPEG-4 | H.264,MPEG-2,VC-1 |
Power & Dimensions
The Radeon HD 6670 draws 250W versus the GeForce GT 340's 64W — a 118.5% difference. The GeForce GT 340 is more power-efficient. Recommended PSU: 250W (Radeon HD 6670) vs 300W (GeForce GT 340). Power connectors: None vs None. Card length: 168mm vs 168mm, occupying 1 vs 1 slots. Typical load temperature: 75 vs 75.
| Feature | Radeon HD 6670 | GeForce GT 340 |
|---|---|---|
| TDP | 250W | 64W-74% |
| Recommended PSU | 250W-17% | 300W |
| Power Connector | None | None |
| Length | 168mm | 168mm |
| Height | 111mm | 111mm |
| Slots | 1 | 1 |
| Temp (Load) | 75 | 75 |
| Perf/Watt | 2.9 | 11.5+297% |
Value Analysis
The Radeon HD 6670 launched at $99 MSRP and currently averages $99, while the GeForce GT 340 launched at $100 and now averages $20. The GeForce GT 340 costs 79.8% less ($79 savings) at current market prices. Performance per dollar (G3D Mark / price): 7.3 (Radeon HD 6670) vs 36.9 (GeForce GT 340) — the GeForce GT 340 offers 405.5% better value. The GeForce GT 340 is the newer GPU (2014 vs 2010).
| Feature | Radeon HD 6670 | GeForce GT 340 |
|---|---|---|
| MSRP | $99-1% | $100 |
| Avg Price (30d) | $99 | $20-80% |
| Performance per Dollar | 7.3 | 36.9+405% |
| Codename | Cayman | GK107 |
| Release | December 14 2010 | May 29 2014 |
| Ranking | #596 | #777 |
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