GeForce GT 640 vs GeForce GT 640 Rev. 2
GeForce GT 640
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GeForce GT 640 Rev. 2
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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 640 is positioned at rank 107 and the GeForce GT 640 Rev. 2 is on rank 109, so the GeForce GT 640 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 640
Performance Per Dollar GeForce GT 640 Rev. 2
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 640 is the superior choice for raw performance. It leads with a 0.1% higher G3D Mark score and 700% more VRAM (4 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GT 640 Rev. 2.
| Insight | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| Performance | ✅Leading raw performance (+0.1%) | ❌Lower raw frame rates (-0.1%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2013 / Kepler 2.0 (2013−2015)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+700%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GT 640 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GT 640 holds the technical lead. Priced at $50 (vs $99), it costs 49% less, resulting in a 98.2% higher cost efficiency score.
| Insight | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+98.2%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($50) | ⚠️Higher upfront cost ($99) |
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 640 and GeForce GT 640 Rev. 2
GeForce GT 640
The GeForce GT 640 is manufactured by NVIDIA. It was released in June 5 2012. It features the Kepler architecture. The core clock speed is 902 MHz. It has 384 shading units. The thermal design power (TDP) is 65W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,169 points. Launch price was $99.
GeForce GT 640 Rev. 2
The GeForce GT 640 Rev. 2 is manufactured by NVIDIA. It was released in May 29 2013. It features the Kepler 2.0 architecture. The core clock speed is 1046 MHz. It has 384 shading units. The thermal design power (TDP) is 49W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,168 points. Launch price was $89.
Graphics Performance
The GeForce GT 640 scores 1,169 and the GeForce GT 640 Rev. 2 reaches 1,168 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The GeForce GT 640 is built on Kepler while the GeForce GT 640 Rev. 2 uses Kepler 2.0, both on a 28 nm process. Shader units: 384 (GeForce GT 640) vs 384 (GeForce GT 640 Rev. 2). Raw compute: 0.6927 TFLOPS (GeForce GT 640) vs 0.8033 TFLOPS (GeForce GT 640 Rev. 2).
| Feature | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| G3D Mark Score | 1,169 | 1,168 |
| Architecture | Kepler | Kepler 2.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.6927 TFLOPS | 0.8033 TFLOPS+16% |
| ROPs | 16+100% | 8 |
| TMUs | 32 | 32 |
| L1 Cache | 32 KB | 32 KB |
| L2 Cache | 256 KB+100% | 128 KB |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| 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 640 comes with 4 GB of VRAM, while the GeForce GT 640 Rev. 2 has 512 MB. The GeForce GT 640 offers 700% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit. L2 Cache: 256 KB (GeForce GT 640) vs 128 KB (GeForce GT 640 Rev. 2) — the GeForce GT 640 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| VRAM Capacity | 4 GB+700% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 256 KB+100% | 128 KB |
Display & API Support
DirectX support: 11.0 (GeForce GT 640) vs 12 (11_0) (GeForce GT 640 Rev. 2). Vulkan: 1.1 vs 1.2. OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 3 vs 3.
| Feature | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| DirectX | 11.0 | 12 (11_0)+9% |
| Vulkan | 1.1 | 1.2+9% |
| OpenGL | 4.5 | 4.6+2% |
| Max Displays | 3 | 3 |
Media & Encoding
Hardware encoder: NVENC 1.0 (GeForce GT 640) vs NVENC (Kepler) (GeForce GT 640 Rev. 2). Decoder: PureVideo HD VP5 vs PureVideo HD 5. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640) vs H.264,MPEG-2,VC-1 (GeForce GT 640 Rev. 2).
| Feature | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| Encoder | NVENC 1.0 | NVENC (Kepler) |
| Decoder | PureVideo HD VP5 | PureVideo HD 5 |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP | H.264,MPEG-2,VC-1 |
Power & Dimensions
The GeForce GT 640 draws 65W versus the GeForce GT 640 Rev. 2's 49W — a 28.1% difference. The GeForce GT 640 Rev. 2 is more power-efficient. Recommended PSU: 300W (GeForce GT 640) vs 300W (GeForce GT 640 Rev. 2). Power connectors: None vs None. Card length: 145mm vs 145mm, occupying 1 vs 1 slots. Typical load temperature: 60°C vs 65.
| Feature | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| TDP | 65W | 49W-25% |
| Recommended PSU | 300W | 300W |
| Power Connector | None | None |
| Length | 145mm | 145mm |
| Height | 111mm | 111mm |
| Slots | 1 | 1 |
| Temp (Load) | 60°C-8% | 65 |
| Perf/Watt | 18.0 | 23.8+32% |
Value Analysis
The GeForce GT 640 launched at $99 MSRP and currently averages $50, while the GeForce GT 640 Rev. 2 launched at $99 and now averages $99. The GeForce GT 640 costs 49.5% less ($49 savings) at current market prices. Performance per dollar (G3D Mark / price): 23.4 (GeForce GT 640) vs 11.8 (GeForce GT 640 Rev. 2) — the GeForce GT 640 offers 98.3% better value. The GeForce GT 640 Rev. 2 is the newer GPU (2013 vs 2012).
| Feature | GeForce GT 640 | GeForce GT 640 Rev. 2 |
|---|---|---|
| MSRP | $99 | $99 |
| Avg Price (30d) | $50-49% | $99 |
| Performance per Dollar | 23.4+98% | 11.8 |
| Codename | GK107 | GK208 |
| Release | June 5 2012 | May 29 2013 |
| Ranking | #837 | #786 |
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