GeForce GTX 1660 vs Radeon RX 550 640SP
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | 175 |
| Place by popularity | not in top-100 | 48 |
| Cost-effectiveness evaluation | no data | 50.34 |
| Architecture | GCN 4.0 (2016−2020) | Turing (2018−2022) |
| GPU code name | Baffin | Turing TU116 |
| Market segment | Desktop | Desktop |
| Release date | 13 October 2017 (6 years ago) | 14 March 2019 (5 years ago) |
| Launch price (MSRP) | no data | $219 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 640 | 1408 |
| Core clock speed | 1019 MHz | 1530 MHz |
| Boost clock speed | 1071 MHz | 1785 MHz |
| Number of transistors | 3,000 million | 6,600 million |
| Manufacturing process technology | 14 nm | 12 nm |
| Power consumption (TDP) | 60 Watt | 120 Watt |
| Texture fill rate | 42.84 | 157.1 |
| Floating-point performance | 1,371 gflops | no data |
| Floating-point performance | 1.371 gflops | 5.027 gflops |
Form factor & compatibility
Information on Radeon RX 550 640SP and GeForce GTX 1660 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Length | 145 mm | 229 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | None | 1x 8-pin |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 6 GB |
| Memory bus width | 128 Bit | 192 Bit |
| Memory clock speed | 6000 MHz | 8000 MHz |
| Memory bandwidth | 96 GB/s | 192.1 GB/s |
| Shared memory | - | - |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 1x DVI, 1x HDMI, 1x DisplayPort | 1x DVI, 1x HDMI, 1x DisplayPort |
| HDMI | + | + |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 (12_1) |
| Shader Model | 6.4 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2.131 | 1.2.131 |
| CUDA | - | 7.5 |
Pros & cons summary
| Recency | 13 October 2017 | 14 March 2019 |
| Maximum RAM amount | 2 GB | 6 GB |
| Chip lithography | 14 nm | 12 nm |
| Power consumption (TDP) | 60 Watt | 120 Watt |
RX 550 640SP has 100% lower power consumption.
GTX 1660, on the other hand, has an age advantage of 1 year, a 200% higher maximum VRAM amount, and a 16.7% more advanced lithography process.
We couldn't decide between Radeon RX 550 640SP and GeForce GTX 1660. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
