
Radeon RX Vega M GL / 870
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GeForce GTX 660
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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. The Radeon RX Vega M GL / 870 is positioned at rank #206 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 RX Vega M GL / 870
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon RX Vega M GL / 870 is significantly newer (2018 vs 2012). The Radeon RX Vega M GL / 870 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GTX 660 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The GeForce GTX 660 is the superior choice for raw performance. It leads with a 3% higher G3D Mark score and 100+% more VRAM (3 GB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon RX Vega M GL / 870.
| Insight | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3%) | ✅Leading raw performance (+3%) |
| Longevity | 🛑Obsolete Architecture (2018 / Vega (2017−2020)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | ✨ FSR 3 / AFMF Support | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+100+%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GTX 660 offers a compelling cost-to-performance ratio. Priced at $15 versus $150 for the Radeon RX Vega M GL / 870, it costs 90% less. While it maintains basic entry-level capabilities, this results in a 930.1% higher cost efficiency score.
| Insight | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+930.1%) |
| Upfront Cost | ⚠️Higher upfront cost ($150) | ✅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.

Counter-Strike 2

Valorant
Technical Specifications
Side-by-side comparison of Radeon RX Vega M GL / 870 and GeForce GTX 660

Radeon RX Vega M GL / 870
The Radeon RX Vega M GL / 870 is manufactured by AMD. It was released in January 7 2018. It features the Vega architecture. The core clock ranges from 931 MHz to 1011 MHz. It has 1280 shading units. The thermal design power (TDP) is 65W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 3,922 points.

GeForce GTX 660
The GeForce GTX 660 is manufactured by NVIDIA. It was released in September 6 2012. It features the Kepler architecture. The core clock ranges from 980 MHz to 1033 MHz. It has 960 shading units. The thermal design power (TDP) is 140W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,040 points. Launch price was $229.
Graphics Performance
The Radeon RX Vega M GL / 870 scores 3,922 and the GeForce GTX 660 reaches 4,040 in the G3D Mark benchmark — just a 3% difference, making them near-identical in rasterization performance. The Radeon RX Vega M GL / 870 is built on Vega while the GeForce GTX 660 uses Kepler, both on 14 nm vs 28 nm. Shader units: 1,280 (Radeon RX Vega M GL / 870) vs 960 (GeForce GTX 660). Boost clocks: 1011 MHz vs 1033 MHz.
| Feature | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| G3D Mark Score | 3,922 | 4,040+3% |
| Architecture | Vega | Kepler |
| Process Node | 14 nm | 28 nm |
| Shading Units | 1280+33% | 960 |
| Boost Clock | 1011 MHz | 1033 MHz+2% |
Advanced Features (DLSS/FSR)
| Feature | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| 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 RX Vega M GL / 870 comes with 0 MB of VRAM, while the GeForce GTX 660 has 3 GB. The GeForce GTX 660 offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 179.2 GB/s (Radeon RX Vega M GL / 870) vs 144.2 GB/s (GeForce GTX 660) — a 24.3% advantage for the Radeon RX Vega M GL / 870. Bus width: 1024-bit vs 192-bit.
| Feature | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| VRAM Capacity | Shared System RAM | 3 GB |
| Memory Type | HBM2 | GDDR5 |
| Memory Bandwidth | 179.2 GB/s+24% | 144.2 GB/s |
| Bus Width | 1024-bit+433% | 192-bit |
Display & API Support
DirectX support: 12 (12_1) (Radeon RX Vega M GL / 870) vs 12 (GeForce GTX 660). Maximum simultaneous displays: 6 vs 4.
| Feature | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| DirectX | 12 (12_1) | 12 |
| Max Displays | 6+50% | 4 |
Media & Encoding
Hardware encoder: VCE 3.0 (Radeon RX Vega M GL / 870) vs NVENC 1st Gen (GeForce GTX 660). Decoder: UVD 6.3 vs NVDEC 1st Gen. Supported codecs: H.264,H.265,VP9 (Radeon RX Vega M GL / 870) vs H.264 (GeForce GTX 660).
| Feature | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| Encoder | VCE 3.0 | NVENC 1st Gen |
| Decoder | UVD 6.3 | NVDEC 1st Gen |
| Codecs | H.264,H.265,VP9 | H.264 |
Power & Dimensions
The Radeon RX Vega M GL / 870 draws 65W versus the GeForce GTX 660's 140W — a 73.2% difference. The Radeon RX Vega M GL / 870 is more power-efficient. Recommended PSU: 1W (Radeon RX Vega M GL / 870) vs 450W (GeForce GTX 660). Power connectors: Integrated vs 1x 6-pin. Card length: 0mm vs 241mm, occupying 0 vs 2 slots.
| Feature | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| TDP | 65W-54% | 140W |
| Recommended PSU | 1W-100% | 450W |
| Power Connector | Integrated | 1x 6-pin |
| Length | 0mm | 241mm |
| Height | 0mm | — |
| Slots | 0-100% | 2 |
| Temp (Load) | 80 | — |
| Perf/Watt | 60.3+109% | 28.9 |
Value Analysis
The Radeon RX Vega M GL / 870 launched at $150 MSRP and currently averages $150, while the GeForce GTX 660 launched at $229 and now averages $15. The GeForce GTX 660 costs 90% less ($135 savings) at current market prices. Performance per dollar (G3D Mark / price): 26.1 (Radeon RX Vega M GL / 870) vs 269.3 (GeForce GTX 660) — the GeForce GTX 660 offers 931.8% better value. The Radeon RX Vega M GL / 870 is the newer GPU (2018 vs 2012).
| Feature | Radeon RX Vega M GL / 870 | GeForce GTX 660 |
|---|---|---|
| MSRP | $150-34% | $229 |
| Avg Price (30d) | $150 | $15-90% |
| Performance per Dollar | 26.1 | 269.3+932% |
| Codename | Vega Kaby Lake-G | GK106 |
| Release | January 7 2018 | September 6 2012 |
| Ranking | #427 | #490 |
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