Radeon 550X 640SP vs GeForce GTX 960A

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Primary details

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

Place in the ranking487not rated
Place by popularitynot in top-100not in top-100
Power efficiency8.06no data
ArchitectureMaxwell (2014−2017)GCN 4.0 (2016−2020)
GPU code nameGM107Lexa
Market segmentLaptopDesktop
Release date13 March 2015 (9 years ago)11 April 2018 (6 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 cores640640
Core clock speed1029 MHz1019 MHz
Boost clock speed1085 MHz1071 MHz
Number of transistors1,870 million2,200 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)75 Watt50 Watt
Texture fill rate43.4042.84
Floating-point processing power1.389 TFLOPS1.371 TFLOPS
ROPs1616
TMUs4040

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).

InterfaceMXM-B (3.0)PCIe 3.0 x8
Widthno dataIGP
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 amount2 GB4 GB
Memory bus width128 Bit64 Bit
Memory clock speed1253 MHz1500 MHz
Memory bandwidth80.19 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 ConnectorsNo outputs1x DVI, 1x HDMI, 1x DisplayPort
HDMI-+

API compatibility

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

DirectX12 (11_0)12 (12_0)
Shader Model5.16.4
OpenGL4.64.6
OpenCL1.22.0
Vulkan1.1.1261.2.131
CUDA5.0-

Pros & cons summary


Recency 13 March 2015 11 April 2018
Maximum RAM amount 2 GB 4 GB
Chip lithography 28 nm 14 nm
Power consumption (TDP) 75 Watt 50 Watt

550X 640SP has an age advantage of 3 years, a 100% higher maximum VRAM amount, a 100% more advanced lithography process, and 50% lower power consumption.

We couldn't decide between GeForce GTX 960A and Radeon 550X 640SP. We've got no test results to judge.

Be aware that GeForce GTX 960A is a notebook 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 GeForce GTX 960A
GeForce GTX 960A
AMD Radeon 550X 640SP
Radeon 550X 640SP

Comparisons with similar GPUs

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