GeForce GTX 645 vs Radeon RX 7500
GeForce GTX 645
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Radeon RX 7500
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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 Radeon RX 7500
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon RX 7500 is significantly newer (2021 vs 2010). The Radeon RX 7500 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 GeForce GTX 645 is the superior choice for raw performance. It leads with a 0.4% higher G3D Mark score and 100% more VRAM (1 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon RX 7500.
| Insight | GeForce GTX 645 | Radeon RX 7500 |
|---|---|---|
| Performance | ✅Leading raw performance (+0.4%) | ❌Lower raw frame rates (-0.4%) |
| Longevity | 🛑Obsolete Architecture (2010 / Fermi (2010−2014)) | 🏆Elite Architecture (RDNA 2.0 (2020−2025) / 7nm) |
| Ecosystem | Supports FSR Upscaling | ✨ FSR 3 / AFMF Support |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
The GeForce GTX 645 offers a compelling cost-to-performance ratio. Priced at $20 versus $229 for the Radeon RX 7500, it costs 91% less. While it maintains basic entry-level capabilities, this results in a 1049.3% higher cost efficiency score.
| Insight | GeForce GTX 645 | Radeon RX 7500 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+1049.3%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($20) | ⚠️Higher upfront cost ($229) |
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 Radeon RX 7500
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.
Radeon RX 7500
The Radeon RX 7500 is manufactured by AMD. It was released in June 9 2021. It features the RDNA 2.0 architecture. The core clock ranges from 1941 MHz to 2450 MHz. It has 2304 shading units. The thermal design power (TDP) is 175W. Manufactured using 7 nm process technology. It features 36 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 1,873 points.
Graphics Performance
The GeForce GTX 645 scores 1,880 and the Radeon RX 7500 reaches 1,873 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The GeForce GTX 645 is built on Fermi while the Radeon RX 7500 uses RDNA 2.0, both on 40 nm vs 7 nm. Shader units: 352 (GeForce GTX 645) vs 2,304 (Radeon RX 7500). Raw compute: 0.8554 TFLOPS (GeForce GTX 645) vs 11.29 TFLOPS (Radeon RX 7500).
| Feature | GeForce GTX 645 | Radeon RX 7500 |
|---|---|---|
| G3D Mark Score | 1,880 | 1,873 |
| Architecture | Fermi | RDNA 2.0 |
| Process Node | 40 nm | 7 nm |
| Shading Units | 352 | 2304+555% |
| Compute (TFLOPS) | 0.8554 TFLOPS | 11.29 TFLOPS+1220% |
| ROPs | 32 | 64+100% |
| TMUs | 44 | 144+227% |
| L1 Cache | 704 KB+38% | 512 KB |
| L2 Cache | 0.5 MB | 3 MB+500% |
Advanced Features (DLSS/FSR)
A critical advantage for the Radeon RX 7500 is support for FSR 3 / AFMF. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce GTX 645 lacks specific hardware/driver support for this native frame generation tier.
| Feature | GeForce GTX 645 | Radeon RX 7500 |
|---|---|---|
| Upscaling Tech | FSR 2.1 (Compatible) | FSR 3 (Native) |
| Frame Generation | FSR 3 (Compatible) | FSR 3 / AFMF (Driver) |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce GTX 645 comes with 1 GB of VRAM, while the Radeon RX 7500 has 512 MB. The GeForce GTX 645 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 96-bit. L2 Cache: 0.5 MB (GeForce GTX 645) vs 3 MB (Radeon RX 7500) — the Radeon RX 7500 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GTX 645 | Radeon RX 7500 |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR6 |
| Memory Bandwidth | Unknown | 216 GB/s |
| Bus Width | 128-bit+33% | 96-bit |
| L2 Cache | 0.5 MB | 3 MB+500% |
Power & Dimensions
The GeForce GTX 645 draws 200W versus the Radeon RX 7500's 175W — a 13.3% difference. The Radeon RX 7500 is more power-efficient. Recommended PSU: 300W (GeForce GTX 645) vs 350W (Radeon RX 7500). Power connectors: None vs None.
| Feature | GeForce GTX 645 | Radeon RX 7500 |
|---|---|---|
| TDP | 200W | 175W-13% |
| Recommended PSU | 300W-14% | 350W |
| Power Connector | None | None |
| Length | 147mm | — |
| Height | 111mm | — |
| Slots | 1 | — |
| Temp (Load) | 80 | — |
| Perf/Watt | 9.4 | 10.7+14% |
Value Analysis
The GeForce GTX 645 launched at $150 MSRP and currently averages $20, while the Radeon RX 7500 launched at $229 and now averages $229. The GeForce GTX 645 costs 91.3% less ($209 savings) at current market prices. Performance per dollar (G3D Mark / price): 94.0 (GeForce GTX 645) vs 8.2 (Radeon RX 7500) — the GeForce GTX 645 offers 1046.3% better value. The Radeon RX 7500 is the newer GPU (2021 vs 2010).
| Feature | GeForce GTX 645 | Radeon RX 7500 |
|---|---|---|
| MSRP | $150-34% | $229 |
| Avg Price (30d) | $20-91% | $229 |
| Performance per Dollar | 94.0+1046% | 8.2 |
| Codename | GF100 | Navi 22 |
| Release | May 31 2010 | June 9 2021 |
| Ranking | #618 | #90 |
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