
GeForce GT 645 vs GeForce GTX 460 SE

GeForce GT 645
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GeForce GTX 460 SE
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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 645 is positioned at rank #242 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 645
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 645 is the superior choice for raw performance. It leads with a 0.9% higher G3D Mark score and 100% more VRAM (2 GB vs 1 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GTX 460 SE.
| Insight | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| Performance | ✅Leading raw performance (+0.9%) | ❌Lower raw frame rates (-0.9%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2010 / Fermi (2010−2014)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GT 645 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GT 645 holds the technical lead. Priced at $15 (vs $50), it costs 70% less, resulting in a 236.4% higher cost efficiency score.
| Insight | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+236.4%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($15) | ⚠️Higher upfront cost ($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 GeForce GT 645 and GeForce GTX 460 SE

GeForce GT 645
The GeForce GT 645 is manufactured by NVIDIA. It was released in October 1 2012. It features the Kepler architecture. The core clock speed is Up to 710 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,006 points.

GeForce GTX 460 SE
The GeForce GTX 460 SE is manufactured by NVIDIA. It was released in November 15 2010. It features the Fermi architecture. The core clock speed is 650 MHz. It has 288 shading units. The thermal design power (TDP) is 150W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,988 points. Launch price was $160.
Graphics Performance
The GeForce GT 645 scores 2,006 and the GeForce GTX 460 SE reaches 1,988 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The GeForce GT 645 is built on Kepler while the GeForce GTX 460 SE uses Fermi, both on 28 nm vs 40 nm. Shader units: 384 (GeForce GT 645) vs 288 (GeForce GTX 460 SE). Raw compute: 0.5445 TFLOPS (GeForce GT 645) vs 0.7488 TFLOPS (GeForce GTX 460 SE).
| Feature | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| G3D Mark Score | 2,006 | 1,988 |
| Architecture | Kepler | Fermi |
| Process Node | 28 nm | 40 nm |
| Shading Units | 384+33% | 288 |
| Compute (TFLOPS) | 0.5445 TFLOPS | 0.7488 TFLOPS+38% |
| ROPs | 16 | 32+100% |
| TMUs | 32 | 48+50% |
| L1 Cache | 32 KB | 384 KB+1100% |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 2.1 (Compatible) |
| Frame Generation | Not Supported | FSR 3 (Compatible) |
| Ray Reconstruction | No | No |
| Low Latency | Standard | Standard |
Video Memory (VRAM)
The GeForce GT 645 comes with 2 GB of VRAM, while the GeForce GTX 460 SE has 1 GB. The GeForce GT 645 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 256 KB (GeForce GT 645) vs 512 KB (GeForce GTX 460 SE) — the GeForce GTX 460 SE has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| VRAM Capacity | 2 GB+100% | 1 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 256 KB | 512 KB+100% |
Display & API Support
DirectX support: 12 (11_0) (GeForce GT 645) vs 12.0 (GeForce GTX 460 SE). OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 3 vs 2.
| Feature | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| DirectX | 12 (11_0) | 12.0 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 3+50% | 2 |
Media & Encoding
Hardware encoder: NVENC (1st Gen) (GeForce GT 645) vs UVD 4.0 (GeForce GTX 460 SE). Decoder: NVDEC (1st Gen) vs PureVideo VP4. Supported codecs: H.264,MPEG-2,VC-1 (GeForce GT 645) vs H.264,MPEG-2,VC-1 (GeForce GTX 460 SE).
| Feature | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| Encoder | NVENC (1st Gen) | UVD 4.0 |
| Decoder | NVDEC (1st Gen) | PureVideo VP4 |
| Codecs | H.264,MPEG-2,VC-1 | H.264,MPEG-2,VC-1 |
Power & Dimensions
The GeForce GT 645 draws 32W versus the GeForce GTX 460 SE's 150W — a 129.7% difference. The GeForce GT 645 is more power-efficient. Recommended PSU: 350W (GeForce GT 645) vs 450W (GeForce GTX 460 SE). Power connectors: PCIe-powered vs 2x 6-pin. Card length: 145mm vs 210mm, occupying 1 vs 2 slots. Typical load temperature: 80 vs 80°C.
| Feature | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| TDP | 32W-79% | 150W |
| Recommended PSU | 350W-22% | 450W |
| Power Connector | PCIe-powered | 2x 6-pin |
| Length | 145mm | 210mm |
| Height | 111mm | 111mm |
| Slots | 1-50% | 2 |
| Temp (Load) | 80 | 80°C |
| Perf/Watt | 62.7+371% | 13.3 |
Value Analysis
The GeForce GT 645 launched at $99 MSRP and currently averages $15, while the GeForce GTX 460 SE launched at $160 and now averages $50. The GeForce GT 645 costs 70% less ($35 savings) at current market prices. Performance per dollar (G3D Mark / price): 133.7 (GeForce GT 645) vs 39.8 (GeForce GTX 460 SE) — the GeForce GT 645 offers 235.9% better value. The GeForce GT 645 is the newer GPU (2012 vs 2010).
| Feature | GeForce GT 645 | GeForce GTX 460 SE |
|---|---|---|
| MSRP | $99-38% | $160 |
| Avg Price (30d) | $15-70% | $50 |
| Performance per Dollar | 133.7+236% | 39.8 |
| Codename | GK107 | GF104 |
| Release | October 1 2012 | November 15 2010 |
| Ranking | #903 | #683 |
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