GeForce 945M vs Radeon RX 640
GeForce 945M
Popular choices:
Radeon RX 640
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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. The GeForce 945M is positioned at rank 100 and the Radeon RX 640 is on rank 323, so the GeForce 945M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GeForce 945M
Performance Per Dollar Radeon RX 640
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon RX 640 uses modern memory architecture. The Radeon RX 640 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce 945M lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon RX 640 is the superior choice for raw performance. It leads with a 3% higher G3D Mark score and 700% more VRAM (4 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce 945M.
| Insight | GeForce 945M | Radeon RX 640 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3%) | ✅Leading raw performance (+3%) |
| Longevity | 🛑Obsolete Architecture (2015 / Maxwell (2014−2017)) | GCN 4.0 (2016−2020) (14nm) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+700%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
The Radeon RX 640 offers a compelling cost-to-performance ratio. Priced at $55 versus $98 for the GeForce 945M, it costs 44% less. While it maintains basic entry-level capabilities, this results in a 83.5% higher cost efficiency score.
| Insight | GeForce 945M | Radeon RX 640 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+83.5%) |
| Upfront Cost | ⚠️Higher upfront cost ($98) | ✅More affordable ($55) |
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 945M and Radeon RX 640
GeForce 945M
The GeForce 945M is manufactured by NVIDIA. It was released in October 27 2015. It features the Maxwell architecture. The core clock ranges from 928 MHz to 1020 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,109 points.
Radeon RX 640
The Radeon RX 640 is manufactured by AMD. It was released in May 13 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 2,172 points.
Graphics Performance
The GeForce 945M scores 2,109 and the Radeon RX 640 reaches 2,172 in the G3D Mark benchmark — just a 3% difference, making them near-identical in rasterization performance. The GeForce 945M is built on Maxwell while the Radeon RX 640 uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 640 (GeForce 945M) vs 640 (Radeon RX 640). Raw compute: 1.306 TFLOPS (GeForce 945M) vs 1.559 TFLOPS (Radeon RX 640). Boost clocks: 1020 MHz vs 1218 MHz.
| Feature | GeForce 945M | Radeon RX 640 |
|---|---|---|
| G3D Mark Score | 2,109 | 2,172+3% |
| Architecture | Maxwell | GCN 4.0 |
| Process Node | 28 nm | 14 nm |
| Shading Units | 640 | 640 |
| Compute (TFLOPS) | 1.306 TFLOPS | 1.559 TFLOPS+19% |
| Boost Clock | 1020 MHz | 1218 MHz+19% |
| ROPs | 16 | 16 |
| TMUs | 40 | 40 |
| L1 Cache | 320 KB+100% | 160 KB |
| L2 Cache | 2 MB+300% | 0.5 MB |
Advanced Features (DLSS/FSR)
A critical advantage for the Radeon RX 640 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 945M lacks specific hardware/driver support for this native frame generation tier.
| Feature | GeForce 945M | Radeon RX 640 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 3 (Native) |
| Frame Generation | Not Supported | FSR 3 / AFMF (Driver) |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce 945M comes with 512 MB of VRAM, while the Radeon RX 640 has 4 GB. The Radeon RX 640 offers 700% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 2 MB (GeForce 945M) vs 0.5 MB (Radeon RX 640) — the GeForce 945M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 945M | Radeon RX 640 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 4 GB+700% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | 80 GB/s | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 2 MB+300% | 0.5 MB |
Display & API Support
DirectX support: 12 (11_0) (GeForce 945M) vs 12 (FL 12_0) (Radeon RX 640). Vulkan: 1.1 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 2 vs 6.
| Feature | GeForce 945M | Radeon RX 640 |
|---|---|---|
| DirectX | 12 (11_0) | 12 (FL 12_0) |
| Vulkan | 1.1 | 1.3+18% |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 2 | 6+200% |
Media & Encoding
Hardware encoder: NVENC (Maxwell) (GeForce 945M) vs VCE 3.4 (Radeon RX 640). Decoder: PureVideo HD (VP6) vs UVD 6.3. Supported codecs: H.264,H.265,MPEG-2 (GeForce 945M) vs H.264,H.265/HEVC (Radeon RX 640).
| Feature | GeForce 945M | Radeon RX 640 |
|---|---|---|
| Encoder | NVENC (Maxwell) | VCE 3.4 |
| Decoder | PureVideo HD (VP6) | UVD 6.3 |
| Codecs | H.264,H.265,MPEG-2 | H.264,H.265/HEVC |
Power & Dimensions
The GeForce 945M draws 75W versus the Radeon RX 640's 50W — a 40% difference. The Radeon RX 640 is more power-efficient. Recommended PSU: 350W (GeForce 945M) vs 350W (Radeon RX 640). Power connectors: Legacy vs PCIe-powered.
| Feature | GeForce 945M | Radeon RX 640 |
|---|---|---|
| TDP | 75W | 50W-33% |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | PCIe-powered |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0-100% | 1 |
| Temp (Load) | 75 | — |
| Perf/Watt | 28.1 | 43.4+54% |
Value Analysis
The Radeon RX 640 costs 43.9% less ($43 savings) at current market prices. Performance per dollar (G3D Mark / price): 21.5 (GeForce 945M) vs 39.5 (Radeon RX 640) — the Radeon RX 640 offers 83.7% better value. The Radeon RX 640 is the newer GPU (2019 vs 2015).
| Feature | GeForce 945M | Radeon RX 640 |
|---|---|---|
| MSRP | — | $159 |
| Avg Price (30d) | $98 | $55-44% |
| Performance per Dollar | 21.5 | 39.5+84% |
| Codename | GM107 | Polaris 23 |
| Release | October 27 2015 | May 13 2019 |
| Ranking | #671 | #665 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
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