
GeForce GTX 660 vs Radeon R9 270 / R7 370

GeForce GTX 660
Popular choices:

Radeon R9 270 / R7 370
Popular choices:
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
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon R9 270 / R7 370 is the superior choice for raw performance. It leads with a 5.4% higher G3D Mark score. However, the GeForce GTX 660 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-5.4%) | ✅Leading raw performance (+5.4%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2015 / GCN 1.0 (2012−2020)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+50%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GTX 660 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GTX 660 holds the technical lead. Priced at $15 (vs $149), it costs 90% less, resulting in a 842% higher cost efficiency score.
| Insight | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+842%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($15) | ⚠️Higher upfront cost ($149) |
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 660 and Radeon R9 270 / R7 370

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.

Radeon R9 270 / R7 370
The Radeon R9 270 / R7 370 is manufactured by AMD. It was released in May 5 2015. It features the GCN 1.0 architecture. The core clock ranges from 925 MHz to 975 MHz. It has 1280 shading units. The thermal design power (TDP) is 110W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,260 points.
Graphics Performance
In G3D Mark, the GeForce GTX 660 scores 4,040 versus the Radeon R9 270 / R7 370's 4,260 — the Radeon R9 270 / R7 370 leads by 5.4%. The GeForce GTX 660 is built on Kepler while the Radeon R9 270 / R7 370 uses GCN 1.0, both on a 28 nm process. Shader units: 960 (GeForce GTX 660) vs 1,280 (Radeon R9 270 / R7 370). Raw compute: 1.981 TFLOPS (GeForce GTX 660) vs 2.496 TFLOPS (Radeon R9 270 / R7 370). Boost clocks: 1033 MHz vs 975 MHz.
| Feature | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| G3D Mark Score | 4,040 | 4,260+5% |
| Architecture | Kepler | GCN 1.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 960 | 1280+33% |
| Compute (TFLOPS) | 1.981 TFLOPS | 2.496 TFLOPS+26% |
| Boost Clock | 1033 MHz+6% | 975 MHz |
| ROPs | 24 | 32+33% |
| TMUs | 80 | 80 |
| L1 Cache | 80 KB | 384 KB+380% |
| L2 Cache | 384 KB | 512 KB+33% |
Advanced Features (DLSS/FSR)
| Feature | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| Upscaling Tech | FSR 2.1 (Compatible) | FSR 1.0 (Software) |
| Frame Generation | FSR 3 (Compatible) | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce GTX 660 comes with 3 GB of VRAM, while the Radeon R9 270 / R7 370 has 2 GB. The GeForce GTX 660 offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 144.2 GB/s (GeForce GTX 660) vs 179.2 GB/s (Radeon R9 270 / R7 370) — a 24.3% advantage for the Radeon R9 270 / R7 370. Bus width: 192-bit vs 256-bit. L2 Cache: 384 KB (GeForce GTX 660) vs 512 KB (Radeon R9 270 / R7 370) — the Radeon R9 270 / R7 370 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| VRAM Capacity | 3 GB+50% | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | 144.2 GB/s | 179.2 GB/s+24% |
| Bus Width | 192-bit | 256-bit+33% |
| L2 Cache | 384 KB | 512 KB+33% |
Display & API Support
DirectX support: 12 (GeForce GTX 660) vs 12 (11_1) (Radeon R9 270 / R7 370). Maximum simultaneous displays: 4 vs 4.
| Feature | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| DirectX | 12 | 12 (11_1) |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: NVENC 1st Gen (GeForce GTX 660) vs VCE 1.0 (Radeon R9 270 / R7 370). Decoder: NVDEC 1st Gen vs UVD 4.0. Supported codecs: H.264 (GeForce GTX 660) vs H.264,MPEG-2,VC-1 (Radeon R9 270 / R7 370).
| Feature | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| Encoder | NVENC 1st Gen | VCE 1.0 |
| Decoder | NVDEC 1st Gen | UVD 4.0 |
| Codecs | H.264 | H.264,MPEG-2,VC-1 |
Power & Dimensions
The GeForce GTX 660 draws 140W versus the Radeon R9 270 / R7 370's 110W — a 24% difference. The Radeon R9 270 / R7 370 is more power-efficient. Recommended PSU: 450W (GeForce GTX 660) vs 450W (Radeon R9 270 / R7 370). Power connectors: 1x 6-pin vs 1x 6-pin. Card length: 241mm vs 220mm, occupying 2 vs 2 slots.
| Feature | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| TDP | 140W | 110W-21% |
| Recommended PSU | 450W | 450W |
| Power Connector | 1x 6-pin | 1x 6-pin |
| Length | 241mm | 220mm |
| Height | — | 111mm |
| Slots | 2 | 2 |
| Temp (Load) | — | 70 |
| Perf/Watt | 28.9 | 38.7+34% |
Value Analysis
The GeForce GTX 660 launched at $229 MSRP and currently averages $15, while the Radeon R9 270 / R7 370 launched at $149 and now averages $149. The GeForce GTX 660 costs 89.9% less ($134 savings) at current market prices. Performance per dollar (G3D Mark / price): 269.3 (GeForce GTX 660) vs 28.6 (Radeon R9 270 / R7 370) — the GeForce GTX 660 offers 841.6% better value. The Radeon R9 270 / R7 370 is the newer GPU (2015 vs 2012).
| Feature | GeForce GTX 660 | Radeon R9 270 / R7 370 |
|---|---|---|
| MSRP | $229 | $149-35% |
| Avg Price (30d) | $15-90% | $149 |
| Performance per Dollar | 269.3+842% | 28.6 |
| Codename | GK106 | Trinidad |
| Release | September 6 2012 | May 5 2015 |
| Ranking | #490 | #456 |
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