UHD Graphics 770 Mobile vs Radeon 660M
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 329 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | RDNA 2 (2020−2023) | Generation 12.2 (2022−2023) |
| GPU code name | RDNA 2 Rembrandt | Raptor Lake GT1 |
| Market segment | Laptop | Laptop |
| Release date | 4 January 2022 (2 years ago) | 4 January 2023 (1 year ago) |
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 | 384 | 256 |
| Boost clock speed | 1900 MHz | 1600 MHz |
| Number of transistors | 13,100 million | no data |
| Manufacturing process technology | 6 nm | 10 nm |
| Power consumption (TDP) | 45 Watt | 15 Watt |
| Texture fill rate | 45.60 | 25.60 |
| Floating-point performance | 1.459 gflops | no data |
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 4.0 x8 | Ring Bus |
| Supplementary power connectors | None | no data |
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 | no data | System Shared |
| Maximum RAM amount | System Shared | System Shared |
| Memory bus width | no data | System Shared |
| Memory clock speed | no data | System Shared |
| Shared memory | - | no data |
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 | No outputs | Portable Device Dependent |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 (12_1) |
| Shader Model | 6.5 | 6.6 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2 | 1.3 |
Pros & cons summary
| Recency | 4 January 2022 | 4 January 2023 |
| Chip lithography | 6 nm | 10 nm |
| Power consumption (TDP) | 45 Watt | 15 Watt |
Radeon 660M has a 66.7% more advanced lithography process.
UHD Graphics 770 Mobile, on the other hand, has an age advantage of 1 year, and 200% lower power consumption.
We couldn't decide between Radeon 660M and UHD Graphics 770 Mobile. 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.
