Radeon 520 Mobile GDDR5 vs RX 550

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking	546	not rated
Place by popularity	22	not in top-100
Cost-effectiveness evaluation	2.92	no data
Power efficiency	9.82	no data
Architecture	GCN 4.0 (2016−2020)	GCN 1.0 (2011−2020)
GPU code name	Lexa	Banks
Market segment	Desktop	Laptop
Release date	20 April 2017 (7 years ago)	18 April 2017 (7 years ago)
Launch price (MSRP)	$79	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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	512	320
Core clock speed	1100 MHz	1030 MHz
Boost clock speed	1183 MHz	no data
Number of transistors	2,200 million	690 million
Manufacturing process technology	14 nm	28 nm
Power consumption (TDP)	50 Watt	50 Watt
Texture fill rate	37.86	20.60
Floating-point processing power	1.211 TFLOPS	0.6592 TFLOPS
ROPs	16	8
TMUs	32	20

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
Length	145 mm	no data
Width	2-slot	no data
Supplementary power connectors	None	no data

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	GDDR5	GDDR5
Maximum RAM amount	4 GB	2 GB
Memory bus width	128 Bit	64 Bit
Memory clock speed	1750 MHz	1125 MHz
Memory bandwidth	112.0 GB/s	36 GB/s

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	1x DVI, 1x HDMI, 1x DisplayPort	Portable Device Dependent
HDMI	+	-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 (12_0)	12 (11_1)
Shader Model	6.4	6.5 (5.1)
OpenGL	4.6	4.6
OpenCL	2.0	2.1 (1.2)
Vulkan	1.2.131	1.2.170

Pros & cons summary

---

Maximum RAM amount	4 GB	2 GB
Chip lithography	14 nm	28 nm

---

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.

---