Radeon RX 640 OEM vs 625
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 858 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 3.95 | no data |
| Architecture | GCN 3.0 (2014−2019) | GCN 4.0 (2016−2020) |
| GPU code name | Polaris 24 | Polaris 23 |
| Market segment | Laptop | Desktop |
| Release date | 13 May 2019 (6 years ago) | 9 April 2020 (5 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. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 384 | 640 |
| Core clock speed | 730 MHz | 1295 MHz |
| Boost clock speed | 1024 MHz | no data |
| Number of transistors | 1,550 million | 2,200 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | 50 Watt | 50 Watt |
| Texture fill rate | 24.58 | 51.80 |
| Floating-point processing power | 0.7864 TFLOPS | 1.658 TFLOPS |
| ROPs | 8 | 16 |
| TMUs | 24 | 40 |
| L1 Cache | 96 KB | 160 KB |
| L2 Cache | 128 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 | PCIe 3.0 x8 | PCIe 3.0 x8 |
| 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 | DDR3 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 900 MHz | 1500 MHz |
| Memory bandwidth | 14.4 GB/s | 96 GB/s |
| Shared memory | - | - |
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 | No outputs | 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 (12_0) | 12 (12_0) |
| Shader Model | 6.3 | 6.7 (6.4) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.2.131 | 1.3 |
Pros & cons summary
| Recency | 13 May 2019 | 9 April 2020 |
| Maximum RAM amount | 2 GB | 4 GB |
| Chip lithography | 28 nm | 14 nm |
RX 640 OEM has an age advantage of 10 months, a 100% higher maximum VRAM amount, and a 100% more advanced lithography process.
We couldn't decide between Radeon 625 and Radeon RX 640 OEM. We've got no test results to judge.
Be aware that Radeon 625 is a notebook graphics card while Radeon RX 640 OEM is a desktop one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
