Radeon R7 450 vs GeForce GTX 645
Radeon R7 450
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GeForce GTX 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
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon R7 450 is significantly newer (2016 vs 2010). The Radeon R7 450 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GTX 645 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon R7 450 is the superior choice for raw performance. It leads with a 0.4% 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 645.
| Insight | Radeon R7 450 | GeForce GTX 645 |
|---|---|---|
| Performance | ✅Leading raw performance (+0.4%) | ❌Lower raw frame rates (-0.4%) |
| Longevity | 🛑Obsolete Architecture (2016 / GCN 1.0 (2012−2020)) | 🛑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 |
💎 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 $35), it costs 43% less, resulting in a 74.4% higher cost efficiency score.
| Insight | Radeon R7 450 | GeForce GTX 645 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+74.4%) |
| Upfront Cost | ⚠️Higher upfront cost ($35) | ✅More affordable ($20) |
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 Radeon R7 450 and GeForce GTX 645
Radeon R7 450
The Radeon R7 450 is manufactured by AMD. It was released in July 6 2016. It features the GCN 1.0 architecture. The core clock speed is 800 MHz. It has 512 shading units. The thermal design power (TDP) is 55W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,887 points.
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.
Graphics Performance
The Radeon R7 450 scores 1,887 and the GeForce GTX 645 reaches 1,880 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The Radeon R7 450 is built on GCN 1.0 while the GeForce GTX 645 uses Fermi, both on 28 nm vs 40 nm. Shader units: 512 (Radeon R7 450) vs 352 (GeForce GTX 645). Raw compute: 0.8192 TFLOPS (Radeon R7 450) vs 0.8554 TFLOPS (GeForce GTX 645).
| Feature | Radeon R7 450 | GeForce GTX 645 |
|---|---|---|
| G3D Mark Score | 1,887 | 1,880 |
| Architecture | GCN 1.0 | Fermi |
| Process Node | 28 nm | 40 nm |
| Shading Units | 512+45% | 352 |
| Compute (TFLOPS) | 0.8192 TFLOPS | 0.8554 TFLOPS+4% |
| ROPs | 16 | 32+100% |
| TMUs | 32 | 44+38% |
| L1 Cache | 128 KB | 704 KB+450% |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | Radeon R7 450 | GeForce GTX 645 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 2.1 (Compatible) |
| Frame Generation | Not Supported | FSR 3 (Compatible) |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
The Radeon R7 450 comes with 2 GB of VRAM, while the GeForce GTX 645 has 1 GB. The Radeon R7 450 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 256 KB (Radeon R7 450) vs 512 KB (GeForce GTX 645) — the GeForce GTX 645 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon R7 450 | GeForce GTX 645 |
|---|---|---|
| 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% |
Power & Dimensions
The Radeon R7 450 draws 55W versus the GeForce GTX 645's 200W — a 113.7% difference. The Radeon R7 450 is more power-efficient. Recommended PSU: 250W (Radeon R7 450) vs 300W (GeForce GTX 645). Power connectors: None vs None.
| Feature | Radeon R7 450 | GeForce GTX 645 |
|---|---|---|
| TDP | 55W-73% | 200W |
| Recommended PSU | 250W-17% | 300W |
| Power Connector | None | None |
| Length | — | 147mm |
| Height | — | 111mm |
| Slots | — | 1 |
| Temp (Load) | — | 80 |
| Perf/Watt | 34.3+265% | 9.4 |
Value Analysis
The Radeon R7 450 launched at $219 MSRP and currently averages $35, while the GeForce GTX 645 launched at $150 and now averages $20. The GeForce GTX 645 costs 42.9% less ($15 savings) at current market prices. Performance per dollar (G3D Mark / price): 53.9 (Radeon R7 450) vs 94.0 (GeForce GTX 645) — the GeForce GTX 645 offers 74.4% better value. The Radeon R7 450 is the newer GPU (2016 vs 2010).
| Feature | Radeon R7 450 | GeForce GTX 645 |
|---|---|---|
| MSRP | $219 | $150-32% |
| Avg Price (30d) | $35 | $20-43% |
| Performance per Dollar | 53.9 | 94.0+74% |
| Codename | Cape Verde | GF100 |
| Release | July 6 2016 | May 31 2010 |
| Ranking | #667 | #618 |
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