Radeon Ryzen 7 4700U vs GeForce GT 645
Radeon Ryzen 7 4700U
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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 Radeon Ryzen 7 4700U
Performance Per Dollar GeForce GT 645
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon Ryzen 7 4700U is significantly newer (2025 vs 2012). The Radeon Ryzen 7 4700U likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GT 645 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon Ryzen 7 4700U is the superior choice for raw performance. It leads with a 1.9% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GT 645.
| Insight | Radeon Ryzen 7 4700U | GeForce GT 645 |
|---|---|---|
| Performance | ✅Leading raw performance (+1.9%) | ❌Lower raw frame rates (-1.9%) |
| Longevity | RDNA 3.0 (2022−2026) (6nm) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GT 645 offers a compelling cost-to-performance ratio. Priced at $15 versus $450 for the Radeon Ryzen 7 4700U, it costs 97% less. While it maintains basic entry-level capabilities, this results in a 2844.2% higher cost efficiency score.
| Insight | Radeon Ryzen 7 4700U | GeForce GT 645 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+2844.2%) |
| Upfront Cost | ⚠️Higher upfront cost ($450) | ✅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 Radeon Ryzen 7 4700U and GeForce GT 645
Radeon Ryzen 7 4700U
The Radeon Ryzen 7 4700U is manufactured by AMD. It was released in August 8 2025. It features the RDNA 3.0 architecture. The core clock ranges from 1452 MHz to 2300 MHz. It has 1792 shading units. The thermal design power (TDP) is 43W. Manufactured using 6 nm process technology. It features 28 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 2,044 points.
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 Radeon Ryzen 7 4700U scores 2,044 and the GeForce GT 645 reaches 2,006 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The Radeon Ryzen 7 4700U is built on RDNA 3.0 while the GeForce GT 645 uses Kepler, both on 6 nm vs 28 nm. Shader units: 1,792 (Radeon Ryzen 7 4700U) vs 384 (GeForce GT 645). Raw compute: 16.49 TFLOPS (Radeon Ryzen 7 4700U) vs 0.5445 TFLOPS (GeForce GT 645).
| Feature | Radeon Ryzen 7 4700U | GeForce GT 645 |
|---|---|---|
| G3D Mark Score | 2,044+2% | 2,006 |
| Architecture | RDNA 3.0 | Kepler |
| Process Node | 6 nm | 28 nm |
| Shading Units | 1792+367% | 384 |
| Compute (TFLOPS) | 16.49 TFLOPS+2928% | 0.5445 TFLOPS |
| ROPs | 64+300% | 16 |
| TMUs | 112+250% | 32 |
| L1 Cache | 512 KB+1500% | 32 KB |
| L2 Cache | 2 MB+700% | 0.25 MB |
Advanced Features (DLSS/FSR)
| Feature | Radeon Ryzen 7 4700U | GeForce GT 645 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
Both cards feature 2 GB of video memory. Bus width: System vs 128-bit. L2 Cache: 2 MB (Radeon Ryzen 7 4700U) vs 0.25 MB (GeForce GT 645) — the Radeon Ryzen 7 4700U has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon Ryzen 7 4700U | GeForce GT 645 |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 128-bit |
| L2 Cache | 2 MB+700% | 0.25 MB |
Power & Dimensions
The Radeon Ryzen 7 4700U draws 43W versus the GeForce GT 645's 32W — a 29.3% difference. The GeForce GT 645 is more power-efficient. Recommended PSU: 350W (Radeon Ryzen 7 4700U) vs 350W (GeForce GT 645). Power connectors: None vs PCIe-powered.
| Feature | Radeon Ryzen 7 4700U | GeForce GT 645 |
|---|---|---|
| TDP | 43W | 32W-26% |
| Recommended PSU | 350W | 350W |
| Power Connector | None | PCIe-powered |
| Length | — | 145mm |
| Height | — | 111mm |
| Slots | — | 1 |
| Temp (Load) | — | 80 |
| Perf/Watt | 47.5 | 62.7+32% |
Value Analysis
The Radeon Ryzen 7 4700U launched at $450 MSRP and currently averages $450, while the GeForce GT 645 launched at $99 and now averages $15. The GeForce GT 645 costs 96.7% less ($435 savings) at current market prices. Performance per dollar (G3D Mark / price): 4.5 (Radeon Ryzen 7 4700U) vs 133.7 (GeForce GT 645) — the GeForce GT 645 offers 2871.1% better value. The Radeon Ryzen 7 4700U is the newer GPU (2025 vs 2012).
| Feature | Radeon Ryzen 7 4700U | GeForce GT 645 |
|---|---|---|
| MSRP | $450 | $99-78% |
| Avg Price (30d) | $450 | $15-97% |
| Performance per Dollar | 4.5 | 133.7+2871% |
| Codename | Navi 33 | GK107 |
| Release | August 8 2025 | October 1 2012 |
| Ranking | #229 | #903 |
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