Radeon 550X 640SP vs Quadro P400

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Primary details

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

Place in the ranking672not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.08no data
Power efficiency10.14no data
ArchitecturePascal (2016−2021)GCN 4.0 (2016−2020)
GPU code nameGP107Lexa
Market segmentWorkstationDesktop
Release date7 February 2017 (7 years ago)11 April 2018 (6 years ago)
Launch price (MSRP)$119.99 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 cores256640
Core clock speed1228 MHz1019 MHz
Boost clock speed1252 MHz1071 MHz
Number of transistors3,300 million2,200 million
Manufacturing process technology14 nm14 nm
Power consumption (TDP)30 Watt50 Watt
Texture fill rate20.0342.84
Floating-point processing power0.641 TFLOPS1.371 TFLOPS
ROPs1616
TMUs1640

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 x16PCIe 3.0 x8
Length145 mmno data
Width1-slotIGP
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 amount2 GB4 GB
Memory bus width64 Bit64 Bit
Memory clock speed1002 MHz1500 MHz
Memory bandwidth32.06 GB/s48 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 Connectors3x mini-DisplayPort1x DVI, 1x HDMI, 1x DisplayPort
HDMI-+

API compatibility

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

DirectX12 (12_1)12 (12_0)
Shader Model6.46.4
OpenGL4.64.6
OpenCL1.22.0
Vulkan1.2.1311.2.131
CUDA6.1-

Pros & cons summary


Recency 7 February 2017 11 April 2018
Maximum RAM amount 2 GB 4 GB
Power consumption (TDP) 30 Watt 50 Watt

Quadro P400 has 66.7% lower power consumption.

550X 640SP, on the other hand, has an age advantage of 1 year, and a 100% higher maximum VRAM amount.

We couldn't decide between Quadro P400 and Radeon 550X 640SP. We've got no test results to judge.

Be aware that Quadro P400 is a workstation graphics card while Radeon 550X 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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NVIDIA Quadro P400
Quadro P400
AMD Radeon 550X 640SP
Radeon 550X 640SP

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Community ratings

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