Radeon RX 550 640SP vs 540

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Primary details

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

Place in the ranking719not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.10no data
Power efficiency4.92no data
ArchitectureGCN 4.0 (2016−2020)GCN 4.0 (2016−2020)
GPU code nameLexaBaffin
Market segmentDesktopDesktop
Release date20 April 2017 (7 years ago)13 October 2017 (7 years ago)
Launch price (MSRP)$79 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores384640
Core clock speed1183 MHz1019 MHz
Boost clock speed1124 MHz1071 MHz
Number of transistors2,200 million3,000 million
Manufacturing process technology14 nm14 nm
Power consumption (TDP)50 Watt60 Watt
Texture fill rate28.3942.84
Floating-point processing power0.9085 TFLOPS1.371 TFLOPS
ROPs1616
TMUs2440

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).

InterfacePCIe 3.0 x8PCIe 3.0 x8
Length145 mm145 mm
Width1-slot2-slot
Supplementary power connectorsNoneNone

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 typeGDDR5GDDR5
Maximum RAM amount1 GB2 GB
Memory bus width32 Bit128 Bit
Memory clock speed1500 MHz1500 MHz
Memory bandwidth24 GB/s96 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 Connectors2x DisplayPort 1.4a1x DVI, 1x HDMI, 1x DisplayPort
HDMI-+

API compatibility

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

DirectX12 (12_0)12 (12_0)
Shader Model6.76.4
OpenGL4.64.6
OpenCL2.12.0
Vulkan1.31.2.131

Pros & cons summary


Recency 20 April 2017 13 October 2017
Maximum RAM amount 1 GB 2 GB
Power consumption (TDP) 50 Watt 60 Watt

Radeon 540 has 20% lower power consumption.

RX 550 640SP, on the other hand, has an age advantage of 5 months, and a 100% higher maximum VRAM amount.

We couldn't decide between Radeon 540 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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AMD Radeon 540
Radeon 540
AMD Radeon RX 550 640SP
Radeon RX 550 640SP

Comparisons with similar GPUs

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Community ratings

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3.1 47 votes

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3.8 40 votes

Rate Radeon RX 550 640SP on a scale of 1 to 5:

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Questions & comments

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