Steam Deck GPU vs Radeon 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 | Van Gogh |
| Market segment | Laptop | Desktop |
| Release date | 12 August 2019 (5 years ago) | 25 February 2022 (2 years 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 | 512 |
| Boost clock speed | 1024 MHz | 1600 MHz |
| Number of transistors | 1,550 million | 2,400 million |
| Manufacturing process technology | 28 nm | 7 nm |
| Power consumption (TDP) | 50 Watt | 15 Watt |
| Texture fill rate | 24.58 | 51.20 |
| 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 | no data |
| Length | no data | 298 mm |
| 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 | LPDDR5 |
| Maximum RAM amount | 4 GB | 16 GB |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 2250 MHz | 5.5 GB/s |
| Memory bandwidth | 14.4 GB/s | 88 GB/s |
| 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 | 1x USB Type-C |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 (12_1) |
| Shader Model | 6.3 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2.131 | 1.2 |
Pros & cons summary
| Recency | 12 August 2019 | 25 February 2022 |
| Maximum RAM amount | 4 GB | 16 GB |
| Chip lithography | 28 nm | 7 nm |
| Power consumption (TDP) | 50 Watt | 15 Watt |
Steam Deck GPU has an age advantage of 2 years, a 300% higher maximum VRAM amount, a 300% more advanced lithography process, and 233.3% lower power consumption.
We couldn't decide between Radeon 620 and Steam Deck GPU. We've got no test results to judge.
Be aware that Radeon 620 is a notebook card while Steam Deck GPU 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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