
Radeon HD 7640G vs GeForce 705M

Radeon HD 7640G
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GeForce 705M
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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 7640G is positioned at rank 380 and the GeForce 705M is on rank 85, so the GeForce 705M 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 7640G
Performance Per Dollar GeForce 705M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce 705M is the superior choice for raw performance. It leads with a 0.4% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7640G.
| Insight | Radeon HD 7640G | GeForce 705M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.4%) | ✅Leading raw performance (+0.4%) |
| Longevity | 🛑Obsolete Architecture (2012 / TeraScale 2 (2009−2015)) | 🛑Obsolete Architecture (2015 / Maxwell (2014−2017)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce 705M remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 7640G and GeForce 705M

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.

GeForce 705M
The GeForce 705M is manufactured by NVIDIA. It was released in October 27 2015. It features the Maxwell architecture. The core clock ranges from 928 MHz to 1020 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 456 points.
Graphics Performance
The Radeon HD 7640G scores 454 and the GeForce 705M reaches 456 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The Radeon HD 7640G is built on TeraScale 2 while the GeForce 705M uses Maxwell, both on 40 nm vs 28 nm. Shader units: 480 (Radeon HD 7640G) vs 640 (GeForce 705M). Raw compute: 0.576 TFLOPS (Radeon HD 7640G) vs 1.306 TFLOPS (GeForce 705M).
| Feature | Radeon HD 7640G | GeForce 705M |
|---|---|---|
| G3D Mark Score | 454 | 456 |
| Architecture | TeraScale 2 | Maxwell |
| Process Node | 40 nm | 28 nm |
| Shading Units | 480 | 640+33% |
| Compute (TFLOPS) | 0.576 TFLOPS | 1.306 TFLOPS+127% |
| ROPs | 8 | 16+100% |
| TMUs | 24 | 40+67% |
| L1 Cache | 48 KB | 320 KB+567% |
| L2 Cache | 0.25 MB | 2 MB+700% |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7640G | GeForce 705M |
|---|---|---|
| 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)
Both cards feature 512 MB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 0.25 MB (Radeon HD 7640G) vs 2 MB (GeForce 705M) — the GeForce 705M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 7640G | GeForce 705M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 0.25 MB | 2 MB+700% |
Display & API Support
DirectX support: 11 (11_0) (Radeon HD 7640G) vs 11.0 (GeForce 705M). OpenGL: 4.4 vs 4.1. Maximum simultaneous displays: 2 vs 2.
| Feature | Radeon HD 7640G | GeForce 705M |
|---|---|---|
| DirectX | 11 (11_0) | 11.0 |
| OpenGL | 4.4+7% | 4.1 |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: VCE 1.0 (Radeon HD 7640G) vs No (GeForce 705M). Decoder: UVD 3.2 vs PureVideo HD VP4. Supported codecs: H.264,VC-1,MPEG-2,DivX (Radeon HD 7640G) vs H.264,VC-1,MPEG-2 (GeForce 705M).
| Feature | Radeon HD 7640G | GeForce 705M |
|---|---|---|
| Encoder | VCE 1.0 | No |
| Decoder | UVD 3.2 | PureVideo HD VP4 |
| Codecs | H.264,VC-1,MPEG-2,DivX | H.264,VC-1,MPEG-2 |
Power & Dimensions
The Radeon HD 7640G draws 45W versus the GeForce 705M's 75W — a 50% difference. The Radeon HD 7640G is more power-efficient. Recommended PSU: 350W (Radeon HD 7640G) vs 350W (GeForce 705M). Power connectors: 1x 6-pin vs Legacy. Typical load temperature: 70°C vs 80°C.
| Feature | Radeon HD 7640G | GeForce 705M |
|---|---|---|
| TDP | 45W-40% | 75W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | Legacy |
| Length | — | 0mm |
| Height | — | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | 70°C-13% | 80°C |
| Perf/Watt | 10.1+66% | 6.1 |
Value Analysis
The GeForce 705M is the newer GPU (2015 vs 2012).
| Feature | Radeon HD 7640G | GeForce 705M |
|---|---|---|
| MSRP | $50 | — |
| Avg Price (30d) | $50 | — |
| Codename | Turks | GM107 |
| Release | January 5 2012 | October 27 2015 |
| Ranking | #870 | #671 |
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