Radeon RX 550 640SP vs RX 550
General info
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 519 | not rated |
| Place by popularity | 14 | not in top-100 |
| Value for money | 3.29 | no data |
| Architecture | GCN 4.0 (2016−2020) | GCN 4.0 (2016−2020) |
| GPU code name | Lexa | Baffin |
| Market segment | Desktop | Desktop |
| Release date | 20 April 2017 (7 years ago) | 13 October 2017 (6 years ago) |
| Launch price (MSRP) | $79 | no data |
| Current price | $121 (1.5x MSRP) | $99 |
Value for money
Performance to price ratio. The higher, the better.
Technical specs
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 | 512 | 640 |
| Core clock speed | 1100 MHz | 1019 MHz |
| Boost clock speed | 1183 MHz | 1071 MHz |
| Number of transistors | 2,200 million | 3,000 million |
| Manufacturing process technology | 14 nm | 14 nm |
| Power consumption (TDP) | 50 Watt | 60 Watt |
| Texture fill rate | 37.86 | 42.84 |
| Floating-point performance | 1,211 gflops | 1,371 gflops |
Size and 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 |
| Length | 145 mm | 145 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | None | None |
Memory
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 | GDDR5 | GDDR5 |
| Maximum RAM amount | 4 GB | 2 GB |
| Memory bus width | 128 Bit | 128 Bit |
| Memory clock speed | 7000 MHz | 6000 MHz |
| Memory bandwidth | 112.0 GB/s | 96 GB/s |
Video outputs and ports
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 | 1x DVI, 1x HDMI, 1x DisplayPort | 1x DVI, 1x HDMI, 1x DisplayPort |
| HDMI | + | + |
API support
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 (12_0) |
| Shader Model | 6.4 | 6.4 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2.131 | 1.2.131 |
Advantages and disadvantages
| Recency | 20 April 2017 | 13 October 2017 |
| Maximum RAM amount | 4 GB | 2 GB |
| Power consumption (TDP) | 50 Watt | 60 Watt |
We couldn't decide between Radeon RX 550 and Radeon RX 550 640SP. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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