
GeForce GTX 460 v2 vs GeForce GT 645

GeForce GTX 460 v2
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GeForce GT 645
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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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
Performance Per Dollar GeForce GT 645
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GTX 460 v2 is the superior choice for raw performance. It leads with a 0.5% higher G3D Mark score. However, the GeForce GT 645 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| Performance | ✅Leading raw performance (+0.5%) | ❌Lower raw frame rates (-0.5%) |
| Longevity | 🛑Obsolete Architecture (2011 / Fermi 2.0 (2010−2014)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+100%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| 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 231.7% higher cost efficiency score.
| Insight | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+231.7%) |
| Upfront Cost | ⚠️Higher upfront cost ($50) | ✅More affordable ($15) |
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 GTX 460 v2 and GeForce GT 645

GeForce GTX 460 v2
The GeForce GTX 460 v2 is manufactured by NVIDIA. It was released in September 24 2011. It features the Fermi 2.0 architecture. The core clock speed is 779 MHz. It has 336 shading units. The thermal design power (TDP) is 160W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 2,016 points. Launch price was $199.

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.
Graphics Performance
The GeForce GTX 460 v2 scores 2,016 and the GeForce GT 645 reaches 2,006 in the G3D Mark benchmark — just a 0.5% difference, making them near-identical in rasterization performance. The GeForce GTX 460 v2 is built on Fermi 2.0 while the GeForce GT 645 uses Kepler, both on 40 nm vs 28 nm. Shader units: 336 (GeForce GTX 460 v2) vs 384 (GeForce GT 645). Raw compute: 1.046 TFLOPS (GeForce GTX 460 v2) vs 0.5445 TFLOPS (GeForce GT 645).
| Feature | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| G3D Mark Score | 2,016 | 2,006 |
| Architecture | Fermi 2.0 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 336 | 384+14% |
| Compute (TFLOPS) | 1.046 TFLOPS+92% | 0.5445 TFLOPS |
| ROPs | 24+50% | 16 |
| TMUs | 56+75% | 32 |
| L1 Cache | 448 KB+1300% | 32 KB |
| L2 Cache | 384 KB+50% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| Upscaling Tech | FSR 2.1 (Compatible) | FSR 1.0 (Software) |
| Frame Generation | FSR 3 (Compatible) | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | Standard |
Video Memory (VRAM)
The GeForce GTX 460 v2 comes with 1 GB of VRAM, while the GeForce GT 645 has 2 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: 384 KB (GeForce GTX 460 v2) vs 256 KB (GeForce GT 645) — the GeForce GTX 460 v2 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| VRAM Capacity | 1 GB | 2 GB+100% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 384 KB+50% | 256 KB |
Display & API Support
DirectX support: 12 (FL 11_0) (GeForce GTX 460 v2) vs 12 (11_0) (GeForce GT 645). OpenGL: 4.1 vs 4.6. Maximum simultaneous displays: 2 vs 3.
| Feature | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| DirectX | 12 (FL 11_0) | 12 (11_0) |
| OpenGL | 4.1 | 4.6+12% |
| Max Displays | 2 | 3+50% |
Media & Encoding
Hardware encoder: Legacy (GeForce GTX 460 v2) vs NVENC (1st Gen) (GeForce GT 645). Decoder: PureVideo VP4 vs NVDEC (1st Gen). Supported codecs: H.264,VC-1,MPEG-2,MPEG-4 ASP (GeForce GTX 460 v2) vs H.264,MPEG-2,VC-1 (GeForce GT 645).
| Feature | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| Encoder | Legacy | NVENC (1st Gen) |
| Decoder | PureVideo VP4 | NVDEC (1st Gen) |
| Codecs | H.264,VC-1,MPEG-2,MPEG-4 ASP | H.264,MPEG-2,VC-1 |
Power & Dimensions
The GeForce GTX 460 v2 draws 160W versus the GeForce GT 645's 32W — a 133.3% difference. The GeForce GT 645 is more power-efficient. Recommended PSU: 450W (GeForce GTX 460 v2) vs 350W (GeForce GT 645). Power connectors: 2x 6-pin vs PCIe-powered. Card length: 210mm vs 145mm, occupying 2 vs 1 slots.
| Feature | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| TDP | 160W | 32W-80% |
| Recommended PSU | 450W | 350W-22% |
| Power Connector | 2x 6-pin | PCIe-powered |
| Length | 210mm | 145mm |
| Height | 111mm | 111mm |
| Slots | 2 | 1-50% |
| Temp (Load) | — | 80 |
| Perf/Watt | 12.6 | 62.7+398% |
Value Analysis
The GeForce GTX 460 v2 launched at $199 MSRP and currently averages $50, while the GeForce GT 645 launched at $99 and now averages $15. The GeForce GT 645 costs 70% less ($35 savings) at current market prices. Performance per dollar (G3D Mark / price): 40.3 (GeForce GTX 460 v2) vs 133.7 (GeForce GT 645) — the GeForce GT 645 offers 231.8% better value. The GeForce GT 645 is the newer GPU (2012 vs 2011).
| Feature | GeForce GTX 460 v2 | GeForce GT 645 |
|---|---|---|
| MSRP | $199 | $99-50% |
| Avg Price (30d) | $50 | $15-70% |
| Performance per Dollar | 40.3 | 133.7+232% |
| Codename | GF114 | GK107 |
| Release | September 24 2011 | October 1 2012 |
| Ranking | #679 | #903 |
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