Radeon RX 640 OEM vs Steam Deck GPU
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | RDNA 2.0 (2020−2025) | GCN 4.0 (2016−2020) |
| GPU code name | Van Gogh | Polaris 23 |
| Market segment | Desktop | Desktop |
| Release date | 25 February 2022 (4 years ago) | 9 April 2020 (6 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. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 512 | 640 |
| Core clock speed | 1000 MHz | 1295 MHz |
| Boost clock speed | 1600 MHz | no data |
| Number of transistors | 2,400 million | 2,200 million |
| Manufacturing process technology | 7 nm | 14 nm |
| Power consumption (TDP) | 15 Watt | 50 Watt |
| Texture fill rate | 51.20 | 51.80 |
| Floating-point processing power | 1.638 TFLOPS | 1.658 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 32 | 40 |
| Ray Tracing Cores | 8 | no data |
| L0 Cache | 128 KB | no data |
| L1 Cache | 128 KB | 160 KB |
| L2 Cache | 1024 KB | 512 KB |
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 | no data | PCIe 3.0 x8 |
| Length | 298 mm | no data |
| Width | no data | 1-slot |
| 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 | LPDDR5 | GDDR5 |
| Maximum RAM amount | 16 GB | 4 GB |
| Memory bus width | 128 Bit | 128 Bit |
| Memory clock speed | 1375 MHz | 1500 MHz |
| Memory bandwidth | 88 GB/s | 96 GB/s |
| 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 | 1x USB Type-C | 1x DisplayPort 1.4a, 2x mini-DisplayPort 1.4a |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 (12_0) |
| Shader Model | 6.8 | 6.7 (6.4) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.3 | 1.3 |
Pros & cons summary
| Recency | 25 February 2022 | 9 April 2020 |
| Maximum RAM amount | 16 GB | 4 GB |
| Chip lithography | 7 nm | 14 nm |
| Power consumption (TDP) | 15 Watt | 50 Watt |
Steam Deck GPU has an age advantage of 1 year, a 300% higher maximum VRAM amount, a 100% more advanced lithography process, and 233% lower power consumption.
We couldn't decide between Steam Deck GPU and Radeon RX 640 OEM. We've got no test results to judge.
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