Radeon Graphics 128SP vs 620
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 850 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | GCN 1.0 (2012−2020) | RDNA 2.0 (2020−2023) |
| GPU code name | Polaris 24 | Raphael |
| Market segment | Laptop | Desktop |
| Release date | 12 August 2019 (5 years ago) | 27 September 2022 (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 | 128 |
| Boost clock speed | 1024 MHz | 2200 MHz |
| Number of transistors | 1,550 million | 3,400 million |
| Manufacturing process technology | 28 nm | 5 nm |
| Power consumption (TDP) | 50 Watt | 15 Watt |
| Texture fill rate | 24.58 | 17.60 |
| Floating-point performance | 0.7864 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 3.0 x8 | PCIe 4.0 x8 |
| Width | no data | IGP |
| Supplementary power connectors | None | 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 | DDR3, GDDR5 | System Shared |
| Maximum RAM amount | 4 GB | System Shared |
| Memory bus width | 64 Bit | System Shared |
| Memory clock speed | 2250 MHz | System Shared |
| Memory bandwidth | 14.4 GB/s | no data |
| 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 | Motherboard Dependent |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
| Shader Model | 6.3 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2.131 | 1.3 |
Pros & cons summary
| Recency | 12 August 2019 | 27 September 2022 |
| Chip lithography | 28 nm | 5 nm |
| Power consumption (TDP) | 50 Watt | 15 Watt |
Graphics 128SP has an age advantage of 3 years, a 460% more advanced lithography process, and 233.3% lower power consumption.
We couldn't decide between Radeon 620 and Radeon Graphics 128SP. We've got no test results to judge.
Be aware that Radeon 620 is a notebook card while Radeon Graphics 128SP is a desktop one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
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