GeForce GTX 1070 vs GeForce GTX 1660
Performance-wise the GeForce GTX 1070 is out front, noticeably faster, roughly 10% up on the GeForce GTX 1660.
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GeForce GTX 1070 vs GeForce GTX 1660: In-Depth Breakdown
Performance: GeForce GTX 1070 vs GeForce GTX 1660
The GeForce GTX 1070 is noticeably faster, around 10% ahead of the GeForce GTX 1660. Both cards sit in the same broad class, well suited to entry-level 1080p. The GeForce GTX 1070 packs 1,920 CUDA cores versus 1,408 on the GeForce GTX 1660.
Power & Efficiency
The GeForce GTX 1660 sips power at 120W next to the GeForce GTX 1070's 150W, and still leads on performance-per-watt — quieter, cooler, and gentler on your PSU. Its more modern Turing architecture on a TSMC 12nm process is part of why it does more with each watt.
VRAM & Future-Proofing
The GeForce GTX 1070's 8GB (vs 6GB on the GeForce GTX 1660) gives it more room for 4K textures and memory-hungry creative or AI workloads. The GeForce GTX 1070's memory is also faster — 256 GB/s versus 192 GB/s (256-bit vs 192-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce GTX 1660 is roughly 3 years newer than the GeForce GTX 1070 (Turing vs Pascal), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce GTX 1070 or GeForce GTX 1660?
The GeForce GTX 1070 is the faster card by about 10%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.
Frequently Asked Questions
Is the GeForce GTX 1070 better than the GeForce GTX 1660?
Which is better for 4K gaming, the GeForce GTX 1070 or the GeForce GTX 1660?
Does the GeForce GTX 1070 have enough VRAM advantage to matter?
Which should you buy: GeForce GTX 1070 or GeForce GTX 1660?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce GTX 1070 | GeForce GTX 1660 |
|---|---|---|
| Architecture | Pascal | Turing |
| Process Node | TSMC 16nm | TSMC 12nm |
| CUDA Cores (CUDA Cores / CUDA Cores) | 1,920✓ | 1,408 |
Clock Speeds
| Specification | GeForce GTX 1070 | GeForce GTX 1660 |
|---|---|---|
| Base Clock | 1,506 MHz | 1,530 MHz✓ |
| Boost Clock | 1,683 MHz | 1,785 MHz✓ |
Memory
| Specification | GeForce GTX 1070 | GeForce GTX 1660 |
|---|---|---|
| VRAM Capacity | 8 GB✓ | 6 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256-bit✓ | 192-bit |
| Memory Speed | 8 Gbps | 8 Gbps |
| Bandwidth | 256 GB/s✓ | 192 GB/s |
Connectivity & Power
| Specification | GeForce GTX 1070 | GeForce GTX 1660 |
|---|---|---|
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| TDP | 150 W | 120 W✓ |
| Power Connectors | 1x 8-pin | 1x 8-pin |
| Released | Jun 2016 | Mar 2019 |