
Radeon 660M vs Radeon R7 260X

Radeon 660M
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Radeon R7 260X
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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 660M is positioned at rank #399 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 660M
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon 660M is significantly newer (2023 vs 2013). The Radeon 660M likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon R7 260X lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon 660M is the superior choice for raw performance. It leads with a 0.7% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon R7 260X.
| Insight | Radeon 660M | Radeon R7 260X |
|---|---|---|
| Performance | ✅Leading raw performance (+0.7%) | ❌Lower raw frame rates (-0.7%) |
| Longevity | RDNA 2.0 (2020−2025) (6nm) | 🛑Obsolete Architecture (2013 / GCN 2.0 (2013−2017)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
While current pricing data is unavailable, the Radeon 660M remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 660M and Radeon R7 260X

Radeon 660M
The Radeon 660M is manufactured by AMD. It was released in January 3 2023. It features the RDNA 2.0 architecture. The core clock ranges from 1500 MHz to 1900 MHz. It has 384 shading units. The thermal design power (TDP) is 40W. Manufactured using 6 nm process technology. It features 6 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 3,221 points.

Radeon R7 260X
The Radeon R7 260X is manufactured by AMD. It was released in October 8 2013. It features the GCN 2.0 architecture. The boost clock speed is 1000 MHz. It has 896 shading units. The thermal design power (TDP) is 115W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,198 points. Launch price was $139.
Graphics Performance
The Radeon 660M scores 3,221 and the Radeon R7 260X reaches 3,198 in the G3D Mark benchmark — just a 0.7% difference, making them near-identical in rasterization performance. The Radeon 660M is built on RDNA 2.0 while the Radeon R7 260X uses GCN 2.0, both on 6 nm vs 28 nm. Shader units: 384 (Radeon 660M) vs 896 (Radeon R7 260X). Raw compute: 1.459 TFLOPS (Radeon 660M) vs 1.971 TFLOPS (Radeon R7 260X). Boost clocks: 1900 MHz vs 1000 MHz.
| Feature | Radeon 660M | Radeon R7 260X |
|---|---|---|
| G3D Mark Score | 3,221 | 3,198 |
| Architecture | RDNA 2.0 | GCN 2.0 |
| Process Node | 6 nm | 28 nm |
| Shading Units | 384 | 896+133% |
| Compute (TFLOPS) | 1.459 TFLOPS | 1.971 TFLOPS+35% |
| Boost Clock | 1900 MHz+90% | 1000 MHz |
| ROPs | 16 | 16 |
| TMUs | 24 | 56+133% |
| L1 Cache | 128 KB | 224 KB+75% |
| L2 Cache | 2 MB+700% | 0.25 MB |
Advanced Features (DLSS/FSR)
| Feature | Radeon 660M | Radeon R7 260X |
|---|---|---|
| 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 | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 2 GB of video memory. Bus width: System vs 128-bit. L2 Cache: 2 MB (Radeon 660M) vs 0.25 MB (Radeon R7 260X) — the Radeon 660M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon 660M | Radeon R7 260X |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | 104 GB/s |
| Bus Width | System | 128-bit |
| L2 Cache | 2 MB+700% | 0.25 MB |
Power & Dimensions
The Radeon 660M draws 40W versus the Radeon R7 260X's 115W — a 96.8% difference. The Radeon 660M is more power-efficient. Recommended PSU: 350W (Radeon 660M) vs 500W (Radeon R7 260X). Power connectors: PCIe-powered vs 1x 6-pin.
| Feature | Radeon 660M | Radeon R7 260X |
|---|---|---|
| TDP | 40W-65% | 115W |
| Recommended PSU | 350W-30% | 500W |
| Power Connector | PCIe-powered | 1x 6-pin |
| Length | — | 170mm |
| Height | — | 111mm |
| Slots | — | 2 |
| Temp (Load) | — | 80 |
| Perf/Watt | 80.5+190% | 27.8 |
Value Analysis
The Radeon 660M is the newer GPU (2023 vs 2013).
| Feature | Radeon 660M | Radeon R7 260X |
|---|---|---|
| MSRP | — | $139 |
| Avg Price (30d) | — | $150 |
| Codename | Rembrandt+ | Bonaire |
| Release | January 3 2023 | October 8 2013 |
| Ranking | #565 | #568 |
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