GeForce RTX 4090 Mobile vs Radeon RX 550 512SP

Primary details

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

Place in the rankingnot rated18
Place by popularitynot in top-100not in top-100
Power efficiencyno data41.71
ArchitectureGCN 4.0 (2016−2020)Ada Lovelace (2022−2024)
GPU code nameBaffinAD103
Market segmentDesktopLaptop
Release date13 October 2017 (7 years ago)3 January 2023 (1 year ago)
Launch price (MSRP)$79 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 cores5129728
Core clock speed1019 MHz1335 MHz
Boost clock speed1071 MHz1695 MHz
Number of transistors3,000 million45,900 million
Manufacturing process technology14 nm4 nm
Power consumption (TDP)50 Watt120 Watt
Texture fill rate34.27515.3
Floating-point processing power1.097 TFLOPS32.98 TFLOPS
ROPs16112
TMUs32304
Tensor Coresno data304
Ray Tracing Coresno data76

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).

Laptop sizeno datalarge
InterfacePCIe 3.0 x8PCIe 4.0 x16
Length145 mmno data
Width2-slotno data
Supplementary power connectorsNoneno 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 typeGDDR5GDDR6
Maximum RAM amount2 GB16 GB
Memory bus width128 Bit256 Bit
Memory clock speed1500 MHz2250 MHz
Memory bandwidth96 GB/s576.0 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 Connectors1x DVI, 1x HDMI, 1x DisplayPortPortable Device Dependent
HDMI+-

API compatibility

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

DirectX12 (12_0)12 Ultimate (12_2)
Shader Model6.46.7
OpenGL4.64.6
OpenCL2.03.0
Vulkan1.21.3
CUDA-8.9

Pros & cons summary


Recency 13 October 2017 3 January 2023
Maximum RAM amount 2 GB 16 GB
Chip lithography 14 nm 4 nm
Power consumption (TDP) 50 Watt 120 Watt

RX 550 512SP has 140% lower power consumption.

RTX 4090 Mobile, on the other hand, has an age advantage of 5 years, a 700% higher maximum VRAM amount, and a 250% more advanced lithography process.

We couldn't decide between Radeon RX 550 512SP and GeForce RTX 4090 Mobile. We've got no test results to judge.

Be aware that Radeon RX 550 512SP is a desktop card while GeForce RTX 4090 Mobile is a notebook 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 RX 550 512SP
Radeon RX 550 512SP
NVIDIA GeForce RTX 4090 Mobile
GeForce RTX 4090 Mobile

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Community ratings

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Questions & comments

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