
Radeon HD 4670 vs Mobility Radeon HD 4650

Radeon HD 4670
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Mobility Radeon HD 4650
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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 4670 is positioned at rank 208 and the Mobility Radeon HD 4650 is on rank 398, so the Radeon HD 4670 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 4670
Performance Per Dollar Mobility Radeon HD 4650
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Mobility Radeon HD 4650 is the superior choice for raw performance. It leads with a 5% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 4670.
| Insight | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-5%) | ✅Leading raw performance (+5%) |
| Longevity | 🛑Obsolete Architecture (2010 / TeraScale 3 (2010−2013)) | 🛑Obsolete Architecture (2010 / 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 Mobility Radeon HD 4650 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Mobility Radeon HD 4650 holds the technical lead. Priced at $15 (vs $67), it costs 78% less, resulting in a 368.9% higher cost efficiency score.
| Insight | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+368.9%) |
| Upfront Cost | ⚠️Higher upfront cost ($67) | ✅More affordable ($15) |
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 4670 and Mobility Radeon HD 4650

Radeon HD 4670
The Radeon HD 4670 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: 382 points. Launch price was $369.

Mobility Radeon HD 4650
The Mobility Radeon HD 4650 is manufactured by AMD. It was released in January 7 2010. It features the TeraScale 2 architecture. The core clock speed is 700 MHz. It has 800 shading units. The thermal design power (TDP) is 50W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 401 points.
Graphics Performance
In G3D Mark, the Radeon HD 4670 scores 382 versus the Mobility Radeon HD 4650's 401 — the Mobility Radeon HD 4650 leads by 5%. The Radeon HD 4670 is built on TeraScale 3 while the Mobility Radeon HD 4650 uses TeraScale 2, both on a 40 nm process. Shader units: 1,536 (Radeon HD 4670) vs 800 (Mobility Radeon HD 4650). Raw compute: 2.703 TFLOPS (Radeon HD 4670) vs 1.12 TFLOPS (Mobility Radeon HD 4650).
| Feature | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| G3D Mark Score | 382 | 401+5% |
| Architecture | TeraScale 3 | TeraScale 2 |
| Process Node | 40 nm | 40 nm |
| Shading Units | 1536+92% | 800 |
| Compute (TFLOPS) | 2.703 TFLOPS+141% | 1.12 TFLOPS |
| ROPs | 32+100% | 16 |
| TMUs | 96+140% | 40 |
| L1 Cache | 192 KB+140% | 80 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| 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 1 GB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 512 KB (Radeon HD 4670) vs 256 KB (Mobility Radeon HD 4650) — the Radeon HD 4670 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| VRAM Capacity | 1 GB | 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: 10.1 (Radeon HD 4670) vs 10.1 (Mobility Radeon HD 4650). OpenGL: 3.3 vs 3.3. Maximum simultaneous displays: 3 vs 2.
| Feature | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| DirectX | 10.1 | 10.1 |
| OpenGL | 3.3 | 3.3 |
| Max Displays | 3+50% | 2 |
Media & Encoding
Decoder: UVD 2.2 vs UVD 2.2. Supported codecs: H.264,VC-1,MPEG-2,DivX (Radeon HD 4670) vs H.264,VC-1,MPEG-2 (Mobility Radeon HD 4650).
| Feature | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| Encoder | — | None |
| Decoder | UVD 2.2 | UVD 2.2 |
| Codecs | H.264,VC-1,MPEG-2,DivX | H.264,VC-1,MPEG-2 |
Power & Dimensions
The Radeon HD 4670 draws 250W versus the Mobility Radeon HD 4650's 50W — a 133.3% difference. The Mobility Radeon HD 4650 is more power-efficient. Recommended PSU: 300W (Radeon HD 4670) vs 350W (Mobility Radeon HD 4650). Power connectors: None vs PCIe-powered. Card length: 193mm vs 0mm, occupying 1 vs 0 slots. Typical load temperature: 65°C vs 80.
| Feature | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| TDP | 250W | 50W-80% |
| Recommended PSU | 300W-14% | 350W |
| Power Connector | None | PCIe-powered |
| Length | 193mm | 0mm |
| Height | — | 0mm |
| Slots | 1 | 0-100% |
| Temp (Load) | 65°C-19% | 80 |
| Perf/Watt | 1.5 | 8.0+433% |
Value Analysis
The Radeon HD 4670 launched at $67 MSRP and currently averages $67, while the Mobility Radeon HD 4650 launched at $49 and now averages $15. The Mobility Radeon HD 4650 costs 77.6% less ($52 savings) at current market prices. Performance per dollar (G3D Mark / price): 5.7 (Radeon HD 4670) vs 26.7 (Mobility Radeon HD 4650) — the Mobility Radeon HD 4650 offers 368.4% better value.
| Feature | Radeon HD 4670 | Mobility Radeon HD 4650 |
|---|---|---|
| MSRP | $67 | $49-27% |
| Avg Price (30d) | $67 | $15-78% |
| Performance per Dollar | 5.7 | 26.7+368% |
| Codename | Cayman | Broadway |
| Release | December 14 2010 | January 7 2010 |
| Ranking | #596 | #846 |
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