Ryzen Z2 A GPU vs UHD Graphics 620
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 900 | not rated |
| Place by popularity | 36 | not in top-100 |
| Power efficiency | 12.76 | no data |
| Architecture | Generation 9.5 (2016−2020) | RDNA 2 (2021−2025) |
| GPU code name | Kaby Lake GT2 | Van Gogh |
| Market segment | Laptop | Desktop |
| Release date | 1 September 2017 (9 years ago) | 2025 (1 year ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 192 | 512 |
| Core clock speed | 300 MHz | 1000 MHz |
| Boost clock speed | 1000 MHz | 1800 MHz |
| Number of transistors | 189 million | 2.4 billion |
| Manufacturing process technology | 14 nm++ | 7 nm |
| Power consumption (TDP) | 15 Watt | 15 Watt |
| Texture fill rate | 24.00 | 57.60 |
| Floating-point processing power | 0.384 TFLOPS | no data |
| ROPs | 3 | 16 |
| TMUs | 24 | 32 |
| Ray Tracing Cores | no data | 8 |
| L0 Cache | no data | 128 KB |
| L1 Cache | no data | 128 KB |
| L2 Cache | no data | 1024 KB |
| L3 Cache | no data | 8 MB |
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 | Ring Bus | 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 | LPDDR3/DDR4 | LPDDR5 |
| Maximum RAM amount | 32 GB | 16 GB |
| Memory bus width | System Shared | 128 Bit |
| Memory clock speed | System Shared | 800 MHz |
| Memory bandwidth | no data | 102.4 GB/s |
| Shared memory | + | no data |
| Resizable BAR | - | + |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | Portable Device Dependent | 1x USB Type-C |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Quick Sync | + | no data |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 Ultimate (12_2) |
| Shader Model | 6.4 | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 2.0 |
| Vulkan | 1.3 | 1.4 |
Pros & cons summary
| Maximum RAM amount | 32 GB | 16 GB |
| Chip lithography | 14 nm | 7 nm |
UHD Graphics 620 has a 100% higher maximum VRAM amount.
Ryzen Z2 A GPU, on the other hand, has a 50% more advanced lithography process.
We couldn't decide between UHD Graphics 620 and Ryzen Z2 A GPU. We've got no test results to judge.
Be aware that UHD Graphics 620 is a notebook graphics card while Ryzen Z2 A GPU is a desktop one.
Other comparisons
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