Radeon HD 4770 vs GeForce GT 640M
Radeon HD 4770
Popular choices:
GeForce GT 640M
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 4770 is positioned at rank 149 and the GeForce GT 640M is on rank 224, so the Radeon HD 4770 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 4770
Performance Per Dollar GeForce GT 640M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 4770 is the superior choice for raw performance. It leads with a 0.2% higher G3D Mark score. However, the GeForce GT 640M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| Performance | ✅Leading raw performance (+0.2%) | ❌Lower raw frame rates (-0.2%) |
| Longevity | 🛑Obsolete Architecture (2009 / TeraScale (2005−2013)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+300%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
The GeForce GT 640M offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GT 640M holds the technical lead. Priced at $50 (vs $109), it costs 54% less, resulting in a 117.5% higher cost efficiency score.
| Insight | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+117.5%) |
| Upfront Cost | ⚠️Higher upfront cost ($109) | ✅More affordable ($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 Radeon HD 4770 and GeForce GT 640M
Radeon HD 4770
The Radeon HD 4770 is manufactured by AMD. It was released in April 28 2009. It features the TeraScale architecture. The core clock speed is 750 MHz. It has 640 shading units. The thermal design power (TDP) is 80W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 909 points. Launch price was $109.
GeForce GT 640M
The GeForce GT 640M is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 625 MHz to 645 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 907 points.
Graphics Performance
The Radeon HD 4770 scores 909 and the GeForce GT 640M reaches 907 in the G3D Mark benchmark — just a 0.2% difference, making them near-identical in rasterization performance. The Radeon HD 4770 is built on TeraScale while the GeForce GT 640M uses Kepler, both on 40 nm vs 28 nm. Shader units: 640 (Radeon HD 4770) vs 384 (GeForce GT 640M). Raw compute: 0.96 TFLOPS (Radeon HD 4770) vs 0.48 TFLOPS (GeForce GT 640M).
| Feature | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| G3D Mark Score | 909 | 907 |
| Architecture | TeraScale | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 640+67% | 384 |
| Compute (TFLOPS) | 0.96 TFLOPS+100% | 0.48 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 32 | 32 |
| L1 Cache | 128 KB+300% | 32 KB |
| L2 Cache | 128 KB | 256 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| 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 4770 comes with 512 MB of VRAM, while the GeForce GT 640M has 2 GB. The GeForce GT 640M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 128 KB (Radeon HD 4770) vs 256 KB (GeForce GT 640M) — the GeForce GT 640M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 2 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 128 KB | 256 KB+100% |
Display & API Support
DirectX support: 10.1 (Radeon HD 4770) vs 11.0 (GeForce GT 640M). OpenGL: 3.3 vs 4.5. Maximum simultaneous displays: 3 vs 1.
| Feature | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| DirectX | 10.1 | 11.0+9% |
| OpenGL | 3.3 | 4.5+36% |
| Max Displays | 3+200% | 1 |
Media & Encoding
Decoder: UVD 2.2 vs PureVideo HD VP5. Supported codecs: H.264,VC-1,MPEG-2,DivX (Radeon HD 4770) vs MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640M).
| Feature | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| Encoder | — | NVENC 1.0 |
| Decoder | UVD 2.2 | PureVideo HD VP5 |
| Codecs | H.264,VC-1,MPEG-2,DivX | MPEG-2,H.264,VC-1,MPEG-4 ASP |
Power & Dimensions
The Radeon HD 4770 draws 80W versus the GeForce GT 640M's 32W — a 85.7% difference. The GeForce GT 640M is more power-efficient. Recommended PSU: 400W (Radeon HD 4770) vs 350W (GeForce GT 640M). Power connectors: 1x 6-pin vs PCIe-powered. Card length: 203mm vs 0mm, occupying 2 vs 0 slots. Typical load temperature: 72°C vs 70°C.
| Feature | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| TDP | 80W | 32W-60% |
| Recommended PSU | 400W | 350W-13% |
| Power Connector | 1x 6-pin | PCIe-powered |
| Length | 203mm | 0mm |
| Height | — | 0mm |
| Slots | 2 | 0-100% |
| Temp (Load) | 72°C | 70°C-3% |
| Perf/Watt | 11.4 | 28.3+148% |
Value Analysis
The GeForce GT 640M costs 54.1% less ($59 savings) at current market prices. Performance per dollar (G3D Mark / price): 8.3 (Radeon HD 4770) vs 18.1 (GeForce GT 640M) — the GeForce GT 640M offers 118.1% better value. The GeForce GT 640M is the newer GPU (2012 vs 2009).
| Feature | Radeon HD 4770 | GeForce GT 640M |
|---|---|---|
| MSRP | $109 | — |
| Avg Price (30d) | $109 | $50-54% |
| Performance per Dollar | 8.3 | 18.1+118% |
| Codename | RV740 | GK107 |
| Release | April 28 2009 | March 22 2012 |
| Ranking | #908 | #909 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
You May Also Compare
Similar GPU comparisons based on Radeon HD 4770 and GeForce GT 640M
