Radeon RX 550 640SP vs GeForce GT 650M SLI

Primary details

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

Place in the ranking623not rated
Place by popularitynot in top-100not in top-100
ArchitectureKepler (2012−2018)GCN 4.0 (2016−2020)
GPU code nameN13E-GEBaffin
Market segmentLaptopDesktop
Release date22 March 2012 (12 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 cores768640
Core clock speed790 MHz1019 MHz
Boost clock speed835 MHz1071 MHz
Number of transistorsno data3,000 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)no data60 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).

Laptop sizemedium sizedno data
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 typeGDDR5GDDR5
Maximum RAM amount2x2 GB2 GB
Memory bus width2x 128 Bit128 Bit
Memory clock speed4000 MHz1500 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-+

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Optimus+-

API compatibility

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

DirectX1112 (12_0)
Shader Modelno data6.4
OpenGLno data4.6
OpenCLno data2.0
Vulkan-1.2.131
CUDA+-

Pros & cons summary


Recency 22 March 2012 13 October 2017
Chip lithography 28 nm 14 nm

RX 550 640SP has an age advantage of 5 years, and a 100% more advanced lithography process.

We couldn't decide between GeForce GT 650M SLI and Radeon RX 550 640SP. We've got no test results to judge.

Be aware that GeForce GT 650M SLI 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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NVIDIA GeForce GT 650M SLI
GeForce GT 650M SLI
AMD Radeon RX 550 640SP
Radeon RX 550 640SP

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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3.3 28 votes

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3.8 40 votes

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Questions & comments

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