Radeon RX 550 640SP vs R4 (Stoney Ridge)

Primary details

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

Place in the ranking1063not rated
Place by popularitynot in top-100not in top-100
Power efficiency5.42no data
ArchitectureGCN 1.2/2.0 (2015−2016)GCN 4.0 (2016−2020)
GPU code nameStoney RidgeBaffin
Market segmentLaptopDesktop
Release date1 June 2016 (8 years ago)13 October 2017 (7 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 cores192640
Core clock speedno data1019 MHz
Boost clock speed600 MHz1071 MHz
Number of transistorsno data3,000 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)15 Watt60 Watt
Texture fill rateno data42.84
Floating-point processing powerno data1.371 TFLOPS
ROPsno data16
TMUsno data40

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).

Interfaceno dataPCIe 3.0 x8
Lengthno data145 mm
Widthno data2-slot
Supplementary power connectorsno dataNone

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 typeno dataGDDR5
Maximum RAM amountno data2 GB
Memory bus width64 Bit128 Bit
Memory clock speedno data1500 MHz
Memory bandwidthno data96 GB/s
Shared memory+-

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 Connectorsno data1x DVI, 1x HDMI, 1x DisplayPort
HDMI-+

API compatibility

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

DirectX12 (FL 12_0)12 (12_0)
Shader Modelno data6.4
OpenGLno data4.6
OpenCLno data2.0
Vulkan-1.2.131

Pros & cons summary


Recency 1 June 2016 13 October 2017
Chip lithography 28 nm 14 nm
Power consumption (TDP) 15 Watt 60 Watt

R4 (Stoney Ridge) has 300% lower power consumption.

RX 550 640SP, on the other hand, has an age advantage of 1 year, and a 100% more advanced lithography process.

We couldn't decide between Radeon R4 (Stoney Ridge) and Radeon RX 550 640SP. We've got no test results to judge.

Be aware that Radeon R4 (Stoney Ridge) is a notebook card while Radeon RX 550 640SP is a desktop one.


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 R4 (Stoney Ridge)
Radeon R4 (Stoney Ridge)
AMD Radeon RX 550 640SP
Radeon RX 550 640SP

Comparisons with similar GPUs

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Community ratings

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2.9 123 votes

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3.8 40 votes

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Questions & comments

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