Radeon RX 550X 640SP: specs and benchmarks

Summary

AMD started Radeon RX 550X 640SP sales 11 April 2018. This is a desktop graphics card based on a GCN 4.0 architecture and made with 14 nm manufacturing process. It is primarily aimed at gamer market. 2 GB of GDDR5 memory clocked at 1.5 GHz are supplied, and together with 128 Bit memory interface this creates a bandwidth of 96 GB/s.

Compatibility-wise, this is a dual-slot graphics card attached via PCIe 3.0 x8 interface. Its manufacturer default version has a length of 145 mm. No additional power connector is required, and power consumption is at 60 Watt.

Primary details

Some basic facts about Radeon RX 550X 640SP: architecture, market segment, release date etc.

Place in the ranking	not rated
Place by popularity	not in top-100
Architecture	GCN 4.0 (2016−2020)
GPU code name	Baffin
Market segment	Desktop
Release date	11 April 2018 (6 years ago)

Detailed specifications

Radeon RX 550X 640SP's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon RX 550X 640SP's performance, but for precise assessment you have to consider its benchmark and gaming test results.

Pipelines / CUDA cores	640	of 21760 (GeForce RTX 5090)
Core clock speed	1019 MHz	of 2670 MHz (Arc B580)
Boost clock speed	1071 MHz	of 3599 MHz (Radeon RX 7990 XTX)
Number of transistors	3,000 million	of 208,000 million (B200 SXM 192 GB)
Manufacturing process technology	14 nm	of 3 nm (Arc Graphics 140V)
Power consumption (TDP)	60 Watt	of 2400 Watt (Data Center GPU Max Subsystem)
Texture fill rate	42.84	of 2,554 (Radeon Instinct MI300X)
Floating-point processing power	1.371 TFLOPS	of 109.7 (GeForce RTX 5090)
ROPs	16	of 192 (Radeon RX 7900 XTX)
TMUs	40	of 1280 (Data Center GPU Max NEXT)

Form factor & compatibility

This section provides details about the physical dimensions of Radeon RX 550X 640SP and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).

Interface	PCIe 3.0 x8
Length	145 mm
Width	2-slot
Supplementary power connectors	None

VRAM capacity and type

Parameters of memory installed on Radeon RX 550X 640SP: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.

Memory type	GDDR5
Maximum RAM amount	2 GB	of 294912 (Radeon Instinct MI325X)
Memory bus width	128 Bit	of 8192 Bit (Radeon Instinct MI250X)
Memory clock speed	1500 MHz	of 20000 (RTX 5000 Ada Generation Mobile)
Memory bandwidth	96 GB/s	of 5,171 GB/s (Radeon Instinct MI300X)

Connectivity and outputs

Types and number of video connectors present on Radeon RX 550X 640SP. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.

Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort
HDMI	+

API compatibility

APIs supported by Radeon RX 550X 640SP, sometimes including their particular versions.

DirectX	12 (12_0)
Shader Model	6.4
OpenGL	4.6
OpenCL	2.0
Vulkan	1.2.131

Benchmark performance

Synthetic benchmark performance of Radeon RX 550X 640SP. The combined score is measured on a 0-100 point scale.

---

---