
GeForce GT 640M LE
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Radeon RX Vega 3
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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. The GeForce GT 640M LE is positioned at rank #386 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GeForce GT 640M LE
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon RX Vega 3 is significantly newer (2019 vs 2012). The Radeon RX Vega 3 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GT 640M LE lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The GeForce GT 640M LE is the superior choice for raw performance. It leads with a 1.9% higher G3D Mark score and 100+% more VRAM (2 GB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon RX Vega 3.
| Insight | GeForce GT 640M LE | Radeon RX Vega 3 |
|---|---|---|
| Performance | ✅Leading raw performance (+1.9%) | ❌Lower raw frame rates (-1.9%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | GCN 5.0 (2017−2020) (14nm) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100+%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce GT 640M LE 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 GeForce GT 640M LE and Radeon RX Vega 3

GeForce GT 640M LE
The GeForce GT 640M LE 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: 697 points.

Radeon RX Vega 3
The Radeon RX Vega 3 is manufactured by AMD. It was released in January 6 2019. It features the GCN 5.0 architecture. The core clock ranges from 300 MHz to 1001 MHz. It has 192 shading units. The thermal design power (TDP) is 15W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 684 points.
Graphics Performance
The GeForce GT 640M LE scores 697 and the Radeon RX Vega 3 reaches 684 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The GeForce GT 640M LE is built on Kepler while the Radeon RX Vega 3 uses GCN 5.0, both on 28 nm vs 14 nm. Shader units: 384 (GeForce GT 640M LE) vs 192 (Radeon RX Vega 3). Raw compute: 0.48 TFLOPS (GeForce GT 640M LE) vs 0.3844 TFLOPS (Radeon RX Vega 3). Boost clocks: 645 MHz vs 1001 MHz.
| Feature | GeForce GT 640M LE | Radeon RX Vega 3 |
|---|---|---|
| G3D Mark Score | 697+2% | 684 |
| Architecture | Kepler | GCN 5.0 |
| Process Node | 28 nm | 14 nm |
| Shading Units | 384+100% | 192 |
| Compute (TFLOPS) | 0.48 TFLOPS+25% | 0.3844 TFLOPS |
| Boost Clock | 645 MHz | 1001 MHz+55% |
| ROPs | 16+300% | 4 |
| TMUs | 32+167% | 12 |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 640M LE | Radeon RX Vega 3 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce GT 640M LE comes with 2 GB of VRAM, while the Radeon RX Vega 3 has 0 MB. The GeForce GT 640M LE offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs System.
| Feature | GeForce GT 640M LE | Radeon RX Vega 3 |
|---|---|---|
| VRAM Capacity | 2 GB | Shared System RAM |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 128-bit | System |
Display & API Support
DirectX support: 12 (11_0) (GeForce GT 640M LE) vs 12 (12_1) (Radeon RX Vega 3). Vulkan: 1.2 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 3.
| Feature | GeForce GT 640M LE | Radeon RX Vega 3 |
|---|---|---|
| DirectX | 12 (11_0) | 12 (12_1) |
| Vulkan | 1.2 | 1.3+8% |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4+33% | 3 |
Media & Encoding
Hardware encoder: NVENC 1st Gen (GeForce GT 640M LE) vs VCE 3.4 (Radeon RX Vega 3). Decoder: VP5 vs UVD 6.3. Supported codecs: H.264,MPEG-2,VC-1,MPEG-4 (GeForce GT 640M LE) vs H.264,H.265,VP9 (Radeon RX Vega 3).
| Feature | GeForce GT 640M LE | Radeon RX Vega 3 |
|---|---|---|
| Encoder | NVENC 1st Gen | VCE 3.4 |
| Decoder | VP5 | UVD 6.3 |
| Codecs | H.264,MPEG-2,VC-1,MPEG-4 | H.264,H.265,VP9 |
Power & Dimensions
The GeForce GT 640M LE draws 32W versus the Radeon RX Vega 3's 15W — a 72.3% difference. The Radeon RX Vega 3 is more power-efficient. Recommended PSU: 350W (GeForce GT 640M LE) vs 1W (Radeon RX Vega 3). Power connectors: PCIe-powered vs Integrated. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 85 vs 75.
| Feature | GeForce GT 640M LE | Radeon RX Vega 3 |
|---|---|---|
| TDP | 32W | 15W-53% |
| Recommended PSU | 350W | 1W-100% |
| Power Connector | PCIe-powered | Integrated |
| Length | 0mm | 0mm |
| Height | 0mm | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | 85 | 75-12% |
| Perf/Watt | 21.8 | 45.6+109% |
Value Analysis
The GeForce GT 640M LE launched at $80 MSRP and currently averages $20, while the Radeon RX Vega 3 launched at $0 and now averages $0. The Radeon RX Vega 3 costs 100+% less ($20 savings) at current market prices. Performance per dollar (G3D Mark / price): 34.9 (GeForce GT 640M LE) vs Infinity (Radeon RX Vega 3) — the Radeon RX Vega 3 offers Infinity% better value. The Radeon RX Vega 3 is the newer GPU (2019 vs 2012).
| Feature | GeForce GT 640M LE | Radeon RX Vega 3 |
|---|---|---|
| MSRP | $80 | $0-100% |
| Avg Price (30d) | $20 | $0-100% |
| Performance per Dollar | 34.9 | Infinity |
| Codename | GK107 | Picasso |
| Release | March 22 2012 | January 6 2019 |
| Ranking | #909 | #845 |
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