GeForce GTX 645 vs FirePro M5100
GeForce GTX 645
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FirePro M5100
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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
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GTX 645 is the superior choice for raw performance. It leads with a 0.3% higher G3D Mark score. However, the FirePro M5100 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| Performance | ✅Leading raw performance (+0.3%) | ❌Lower raw frame rates (-0.3%) |
| Longevity | 🛑Obsolete Architecture (2010 / Fermi (2010−2014)) | 🛑Obsolete Architecture (2013 / GCN 1.0 (2012−2020)) |
| 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 GTX 645 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GTX 645 holds the technical lead. Priced at $20 (vs $30), it costs 33% less, resulting in a 50.5% higher cost efficiency score.
| Insight | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+50.5%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($20) | ⚠️Higher upfront cost ($30) |
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 645 and FirePro M5100
GeForce GTX 645
The GeForce GTX 645 is manufactured by NVIDIA. It was released in May 31 2010. It features the Fermi architecture. The core clock speed is 607 MHz. It has 352 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,880 points. Launch price was $279.
FirePro M5100
The FirePro M5100 is manufactured by AMD. It was released in October 16 2013. It features the GCN 1.0 architecture. The core clock ranges from 725 MHz to 775 MHz. It has 640 shading units. The thermal design power (TDP) is 150W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,874 points.
Graphics Performance
The GeForce GTX 645 scores 1,880 and the FirePro M5100 reaches 1,874 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The GeForce GTX 645 is built on Fermi while the FirePro M5100 uses GCN 1.0, both on 40 nm vs 28 nm. Shader units: 352 (GeForce GTX 645) vs 640 (FirePro M5100). Raw compute: 0.8554 TFLOPS (GeForce GTX 645) vs 0.992 TFLOPS (FirePro M5100).
| Feature | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| G3D Mark Score | 1,880 | 1,874 |
| Architecture | Fermi | GCN 1.0 |
| Process Node | 40 nm | 28 nm |
| Shading Units | 352 | 640+82% |
| Compute (TFLOPS) | 0.8554 TFLOPS | 0.992 TFLOPS+16% |
| ROPs | 32+100% | 16 |
| TMUs | 44+10% | 40 |
| L1 Cache | 704 KB+340% | 160 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| 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 645 comes with 1 GB of VRAM, while the FirePro M5100 has 2 GB. The FirePro M5100 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit. L2 Cache: 512 KB (GeForce GTX 645) vs 256 KB (FirePro M5100) — the GeForce GTX 645 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| VRAM Capacity | 1 GB | 2 GB+100% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 512 KB+100% | 256 KB |
Display & API Support
DirectX support: 11.0 (GeForce GTX 645) vs 12 (FL11_1) (FirePro M5100). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 3 vs 1.
| Feature | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| DirectX | 11.0 | 12 (FL11_1)+9% |
| Vulkan | 1.2 | 1.2 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 3+200% | 1 |
Media & Encoding
Hardware encoder: NVENC (1st Gen) (GeForce GTX 645) vs VCE 1.0 (FirePro M5100). Decoder: PureVideo VP5 vs UVD 4.0. Supported codecs: MPEG-2,VC-1,H.264,MPEG-4 (GeForce GTX 645) vs H.264,VC-1 (FirePro M5100).
| Feature | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| Encoder | NVENC (1st Gen) | VCE 1.0 |
| Decoder | PureVideo VP5 | UVD 4.0 |
| Codecs | MPEG-2,VC-1,H.264,MPEG-4 | H.264,VC-1 |
Power & Dimensions
The GeForce GTX 645 draws 200W versus the FirePro M5100's 150W — a 28.6% difference. The FirePro M5100 is more power-efficient. Recommended PSU: 300W (GeForce GTX 645) vs 350W (FirePro M5100). Power connectors: None vs PCIe-powered. Card length: 147mm vs 82mm, occupying 1 vs 1 slots. Typical load temperature: 80 vs 75°C.
| Feature | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| TDP | 200W | 150W-25% |
| Recommended PSU | 300W-14% | 350W |
| Power Connector | None | PCIe-powered |
| Length | 147mm | 82mm |
| Height | 111mm | 70mm |
| Slots | 1 | 1 |
| Temp (Load) | 80 | 75°C-6% |
| Perf/Watt | 9.4 | 12.5+33% |
Value Analysis
The GeForce GTX 645 launched at $150 MSRP and currently averages $20, while the FirePro M5100 launched at $0 and now averages $30. The GeForce GTX 645 costs 33.3% less ($10 savings) at current market prices. Performance per dollar (G3D Mark / price): 94.0 (GeForce GTX 645) vs 62.5 (FirePro M5100) — the GeForce GTX 645 offers 50.4% better value. The FirePro M5100 is the newer GPU (2013 vs 2010).
| Feature | GeForce GTX 645 | FirePro M5100 |
|---|---|---|
| MSRP | $150 | $0-100% |
| Avg Price (30d) | $20-33% | $30 |
| Performance per Dollar | 94.0+50% | 62.5 |
| Codename | GF100 | Venus |
| Release | May 31 2010 | October 16 2013 |
| Ranking | #618 | #701 |
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