Mobility Radeon HD 4670 vs Radeon HD 7640G
Mobility Radeon HD 4670
Popular choices:
Radeon HD 7640G
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 Mobility Radeon HD 4670 is positioned at rank 418 and the Radeon HD 7640G is on rank 380, so the Radeon HD 7640G offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Mobility Radeon HD 4670
Performance Per Dollar Radeon HD 7640G
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Mobility Radeon HD 4670 is the superior choice for raw performance. It leads with a 2% higher G3D Mark score and 100% more VRAM (1 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7640G.
| Insight | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| Performance | ✅Leading raw performance (+2%) | ❌Lower raw frame rates (-2%) |
| Longevity | 🛑Obsolete Architecture (2009 / TeraScale (2005−2013)) | 🛑Obsolete Architecture (2012 / TeraScale 2 (2009−2015)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
The Mobility Radeon HD 4670 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Mobility Radeon HD 4670 holds the technical lead. Priced at $20 (vs $50), it costs 60% less, resulting in a 155% higher cost efficiency score.
| Insight | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+155%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($20) | ⚠️Higher upfront cost ($50) |
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 Mobility Radeon HD 4670 and Radeon HD 7640G
Mobility Radeon HD 4670
The Mobility Radeon HD 4670 is manufactured by AMD. It was released in January 9 2009. It features the TeraScale architecture. The core clock speed is 550 MHz. It has 800 shading units. The thermal design power (TDP) is 30W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 463 points.
Radeon HD 7640G
The Radeon HD 7640G 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: 454 points.
Graphics Performance
The Mobility Radeon HD 4670 scores 463 and the Radeon HD 7640G reaches 454 in the G3D Mark benchmark — just a 2% difference, making them near-identical in rasterization performance. The Mobility Radeon HD 4670 is built on TeraScale while the Radeon HD 7640G uses TeraScale 2, both on 55 nm vs 40 nm. Shader units: 800 (Mobility Radeon HD 4670) vs 480 (Radeon HD 7640G). Raw compute: 0.88 TFLOPS (Mobility Radeon HD 4670) vs 0.576 TFLOPS (Radeon HD 7640G).
| Feature | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| G3D Mark Score | 463+2% | 454 |
| Architecture | TeraScale | TeraScale 2 |
| Process Node | 55 nm | 40 nm |
| Shading Units | 800+67% | 480 |
| Compute (TFLOPS) | 0.88 TFLOPS+53% | 0.576 TFLOPS |
| ROPs | 16+100% | 8 |
| TMUs | 40+67% | 24 |
| L1 Cache | 160 KB+233% | 48 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| 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)
The Mobility Radeon HD 4670 comes with 1 GB of VRAM, while the Radeon HD 7640G has 512 MB. The Mobility Radeon HD 4670 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit.
| Feature | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 256 KB | 256 KB |
Display & API Support
DirectX support: 10.1 (Mobility Radeon HD 4670) vs 11 (11_0) (Radeon HD 7640G). OpenGL: 3.3 vs 4.4. Maximum simultaneous displays: 2 vs 2.
| Feature | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| DirectX | 10.1 | 11 (11_0)+9% |
| OpenGL | 3.3 | 4.4+33% |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: None (Mobility Radeon HD 4670) vs VCE 1.0 (Radeon HD 7640G). Decoder: UVD 2.2 vs UVD 3.2. Supported codecs: MPEG-2,H.264,VC-1 (Mobility Radeon HD 4670) vs H.264,VC-1,MPEG-2,DivX (Radeon HD 7640G).
| Feature | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| Encoder | None | VCE 1.0 |
| Decoder | UVD 2.2 | UVD 3.2 |
| Codecs | MPEG-2,H.264,VC-1 | H.264,VC-1,MPEG-2,DivX |
Power & Dimensions
The Mobility Radeon HD 4670 draws 30W versus the Radeon HD 7640G's 45W — a 40% difference. The Mobility Radeon HD 4670 is more power-efficient. Recommended PSU: 350W (Mobility Radeon HD 4670) vs 350W (Radeon HD 7640G). Power connectors: PCIe-powered vs 1x 6-pin. Typical load temperature: 70 vs 70°C.
| Feature | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| TDP | 30W-33% | 45W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | 1x 6-pin |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | 0 |
| Temp (Load) | 70 | 70°C |
| Perf/Watt | 15.4+52% | 10.1 |
Value Analysis
The Mobility Radeon HD 4670 launched at $67 MSRP and currently averages $20, while the Radeon HD 7640G launched at $50 and now averages $50. The Mobility Radeon HD 4670 costs 60% less ($30 savings) at current market prices. Performance per dollar (G3D Mark / price): 23.1 (Mobility Radeon HD 4670) vs 9.1 (Radeon HD 7640G) — the Mobility Radeon HD 4670 offers 153.8% better value. The Radeon HD 7640G is the newer GPU (2012 vs 2009).
| Feature | Mobility Radeon HD 4670 | Radeon HD 7640G |
|---|---|---|
| MSRP | $67 | $50-25% |
| Avg Price (30d) | $20-60% | $50 |
| Performance per Dollar | 23.1+154% | 9.1 |
| Codename | M98 | Turks |
| Release | January 9 2009 | January 5 2012 |
| Ranking | #927 | #870 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
You May Also Compare
Similar GPU comparisons based on Mobility Radeon HD 4670 and Radeon HD 7640G
