Radeon HD 8670D vs Radeon HD 7660D
Radeon HD 8670D
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Radeon HD 7660D
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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 8670D is positioned at rank 146 and the Radeon HD 7660D is on rank 513, so the Radeon HD 8670D 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 8670D
Performance Per Dollar Radeon HD 7660D
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 8670D is the superior choice for raw performance. It leads with a 1% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7660D.
| Insight | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| Performance | ✅Leading raw performance (+1%) | ❌Lower raw frame rates (-1%) |
| Longevity | 🛑Obsolete Architecture (2012 / GCN 1.0 (2012−2020)) | 🛑Obsolete Architecture (2012 / TeraScale 2 (2009−2015)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
The Radeon HD 8670D offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 8670D holds the technical lead. Priced at $15 (vs $15), it costs 0% less, resulting in a 1% higher cost efficiency score.
| Insight | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+1%) | ❌Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 8670D and Radeon HD 7660D
Radeon HD 8670D
The Radeon HD 8670D is manufactured by AMD. It was released in March 5 2012. It features the GCN 1.0 architecture. The core clock speed is 1000 MHz. It has 1280 shading units. The thermal design power (TDP) is 200W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 517 points. Launch price was $349.
Radeon HD 7660D
The Radeon HD 7660D is manufactured by AMD. It was released in January 5 2012. It features the TeraScale 2 architecture. The core clock speed is 600 MHz. It has 480 shading units. The thermal design power (TDP) is 45W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 512 points.
Graphics Performance
The Radeon HD 8670D scores 517 and the Radeon HD 7660D reaches 512 in the G3D Mark benchmark — just a 1% difference, making them near-identical in rasterization performance. The Radeon HD 8670D is built on GCN 1.0 while the Radeon HD 7660D uses TeraScale 2, both on 28 nm vs 40 nm. Shader units: 1,280 (Radeon HD 8670D) vs 480 (Radeon HD 7660D). Raw compute: 2.56 TFLOPS (Radeon HD 8670D) vs 0.576 TFLOPS (Radeon HD 7660D).
| Feature | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| G3D Mark Score | 517 | 512 |
| Architecture | GCN 1.0 | TeraScale 2 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 1280+167% | 480 |
| Compute (TFLOPS) | 2.56 TFLOPS+344% | 0.576 TFLOPS |
| ROPs | 32+300% | 8 |
| TMUs | 80+233% | 24 |
| L1 Cache | 320 KB+567% | 48 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| 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 | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 512 MB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 512 KB (Radeon HD 8670D) vs 256 KB (Radeon HD 7660D) — the Radeon HD 8670D has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 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 (Radeon HD 8670D) vs 11 (11_2) (Radeon HD 7660D). Maximum simultaneous displays: 0 vs 3.
| Feature | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| DirectX | 11.2+2% | 11 (11_2) |
| Max Displays | 0 | 3 |
Media & Encoding
Hardware encoder: VCE 1.0 (Radeon HD 8670D) vs VCE 1.0 (Radeon HD 7660D). Decoder: UVD 3.2 vs UVD 3.
| Feature | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| Encoder | VCE 1.0 | VCE 1.0 |
| Decoder | UVD 3.2 | UVD 3 |
| Codecs | — | H.264,VC-1,MPEG-2,MPEG-4 |
Power & Dimensions
The Radeon HD 8670D draws 200W versus the Radeon HD 7660D's 45W — a 126.5% difference. The Radeon HD 7660D is more power-efficient. Recommended PSU: 350W (Radeon HD 8670D) vs 350W (Radeon HD 7660D). Power connectors: 1x 6-pin vs 1x 6-pin.
| Feature | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| TDP | 200W | 45W-78% |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | 1x 6-pin |
| Length | 1mm | — |
| Slots | 0 | 0 |
| Temp (Load) | — | 70°C |
| Perf/Watt | 2.6 | 11.4+338% |
Value Analysis
The Radeon HD 8670D launched at $60 MSRP and currently averages $15, while the Radeon HD 7660D launched at $122 and now averages $15. Performance per dollar (G3D Mark / price): 34.5 (Radeon HD 8670D) vs 34.1 (Radeon HD 7660D) — the Radeon HD 8670D offers 1.2% better value.
| Feature | Radeon HD 8670D | Radeon HD 7660D |
|---|---|---|
| MSRP | $60-51% | $122 |
| Avg Price (30d) | $15 | $15 |
| Performance per Dollar | 34.5+1% | 34.1 |
| Codename | Pitcairn | Turks |
| Release | March 5 2012 | January 5 2012 |
| Ranking | #460 | #870 |
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