Radeon 550X vs GeForce GTX 660 OEM
Aggregate performance score
We've compared GeForce GTX 660 OEM and Radeon 550X, covering specs and all relevant benchmarks.
550X outperforms GTX 660 OEM by a moderate 10% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 734 | 709 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.80 | 5.14 |
| Architecture | Kepler (2012−2018) | GCN 4.0 (2016−2020) |
| GPU code name | GK104 | Lexa |
| Market segment | Desktop | Desktop |
| Release date | 22 August 2012 (12 years ago) | 27 March 2019 (5 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 1152 | 512 |
| Core clock speed | 823 MHz | 1082 MHz |
| Boost clock speed | 888 MHz | 1218 MHz |
| Number of transistors | 3,540 million | 2,200 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | 130 Watt | 50 Watt |
| Texture fill rate | 85.25 | 38.98 |
| Floating-point processing power | 2.046 TFLOPS | 1.247 TFLOPS |
| ROPs | 32 | 16 |
| TMUs | 96 | 32 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Length | 241 mm | 145 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin | None |
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 | 2 GB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 1400 MHz | 1750 MHz |
| Memory bandwidth | 179.2 GB/s | 112.0 GB/s |
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 | 2x DVI, 1x HDMI, 1x DisplayPort | 1x DVI, 1x HDMI, 1x DisplayPort |
| HDMI | + | + |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (12_0) |
| Shader Model | 5.1 | 6.4 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.1.126 | 1.2.131 |
| CUDA | 3.0 | - |
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 3.36 | 3.69 |
| Recency | 22 August 2012 | 27 March 2019 |
| Chip lithography | 28 nm | 14 nm |
| Power consumption (TDP) | 130 Watt | 50 Watt |
Radeon 550X has a 9.8% higher aggregate performance score, an age advantage of 6 years, a 100% more advanced lithography process, and 160% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between GeForce GTX 660 OEM and Radeon 550X.
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.
