
GeForce GT 640M LE vs GeForce GT 740A

GeForce GT 640M LE
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GeForce GT 740A
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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 GeForce GT 640M LE is positioned at rank 386 and the GeForce GT 740A is on rank 157, so the GeForce GT 740A offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GeForce GT 640M LE
Performance Per Dollar GeForce GT 740A
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 740A is the superior choice for raw performance. It leads with a 1.9% higher G3D Mark score. However, the GeForce GT 640M LE offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.9%) | ✅Leading raw performance (+1.9%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2014 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+300%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
The GeForce GT 740A offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GT 740A holds the technical lead. Priced at $20 (vs $20), it costs 0% less, resulting in a 1.9% higher cost efficiency score.
| Insight | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+1.9%) |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 GeForce GT 740A

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.

GeForce GT 740A
The GeForce GT 740A is manufactured by NVIDIA. It was released in May 29 2014. It features the Kepler architecture. The core clock speed is 993 MHz. It has 384 shading units. The thermal design power (TDP) is 64W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 710 points. Launch price was $89.
Graphics Performance
The GeForce GT 640M LE scores 697 and the GeForce GT 740A reaches 710 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 GeForce GT 740A uses Kepler, both on a 28 nm process. Shader units: 384 (GeForce GT 640M LE) vs 384 (GeForce GT 740A). Raw compute: 0.48 TFLOPS (GeForce GT 640M LE) vs 0.7626 TFLOPS (GeForce GT 740A).
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| G3D Mark Score | 697 | 710+2% |
| Architecture | Kepler | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.48 TFLOPS | 0.7626 TFLOPS+59% |
| ROPs | 16 | 16 |
| TMUs | 32 | 32 |
| L1 Cache | 32 KB | 32 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | Standard |
Video Memory (VRAM)
The GeForce GT 640M LE comes with 2 GB of VRAM, while the GeForce GT 740A has 512 MB. The GeForce GT 640M LE offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit.
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| VRAM Capacity | 2 GB+300% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 256 KB | 256 KB |
Display & API Support
DirectX support: 12 (11_0) (GeForce GT 640M LE) vs 12 (11_0) (GeForce GT 740A). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| DirectX | 12 (11_0) | 12 (11_0) |
| Vulkan | 1.2 | 1.2 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: NVENC 1st Gen (GeForce GT 640M LE) vs NVENC (Kepler) (GeForce GT 740A). Decoder: VP5 vs PureVideo HD VP5. Supported codecs: H.264,MPEG-2,VC-1,MPEG-4 (GeForce GT 640M LE) vs H.264,VC-1,MPEG-2 (GeForce GT 740A).
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| Encoder | NVENC 1st Gen | NVENC (Kepler) |
| Decoder | VP5 | PureVideo HD VP5 |
| Codecs | H.264,MPEG-2,VC-1,MPEG-4 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GeForce GT 640M LE draws 32W versus the GeForce GT 740A's 64W — a 66.7% difference. The GeForce GT 640M LE is more power-efficient. Recommended PSU: 350W (GeForce GT 640M LE) vs 250W (GeForce GT 740A). Power connectors: PCIe-powered vs None. Typical load temperature: 85 vs 75°C.
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| TDP | 32W-50% | 64W |
| Recommended PSU | 350W | 250W-29% |
| Power Connector | PCIe-powered | None |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | 0 |
| Temp (Load) | 85 | 75°C-12% |
| Perf/Watt | 21.8+96% | 11.1 |
Value Analysis
The GeForce GT 640M LE launched at $80 MSRP and currently averages $20, while the GeForce GT 740A launched at $89 and now averages $20. Performance per dollar (G3D Mark / price): 34.9 (GeForce GT 640M LE) vs 35.5 (GeForce GT 740A) — the GeForce GT 740A offers 1.7% better value. The GeForce GT 740A is the newer GPU (2014 vs 2012).
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| MSRP | $80-10% | $89 |
| Avg Price (30d) | $20 | $20 |
| Performance per Dollar | 34.9 | 35.5+2% |
| Codename | GK107 | GK107 |
| Release | March 22 2012 | May 29 2014 |
| Ranking | #909 | #777 |
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