GeForce GTX 645 OEM vs Radeon RX 540

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Primary details

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

Place in the ranking542not rated
Place by popularitynot in top-100not in top-100
Power efficiency9.92no data
ArchitectureGCN 4.0 (2016−2020)Kepler (2012−2018)
GPU code nameLexaGK106
Market segmentLaptopDesktop
Release date11 November 2017 (7 years ago)22 April 2013 (11 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 cores512576
Core clock speed1124 MHz824 MHz
Boost clock speed1219 MHzno data
Number of transistors2,200 million2,540 million
Manufacturing process technology14 nm28 nm
Power consumption (TDP)50 Watt65 Watt
Texture fill rate39.0139.55
Floating-point processing power1.248 TFLOPS0.9492 TFLOPS
ROPs1616
TMUs3248

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 sizelargeno data
InterfacePCIe 3.0 x8PCIe 3.0 x16
Lengthno data147 mm
Widthno data1-slot
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 GB1 GB
Memory bus width128 Bit128 Bit
Memory clock speed1500 MHz1000 MHz
Memory bandwidth96 GB/s64 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 outputs1x 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.

FreeSync+-

API compatibility

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

DirectX12 (12_0)12 (11_0)
Shader Model6.45.1
OpenGL4.64.6
OpenCL2.01.2
Vulkan1.2.1311.1.126
CUDA-3.0

Pros & cons summary


Recency 11 November 2017 22 April 2013
Maximum RAM amount 2 GB 1 GB
Chip lithography 14 nm 28 nm
Power consumption (TDP) 50 Watt 65 Watt

RX 540 has an age advantage of 4 years, a 100% higher maximum VRAM amount, a 100% more advanced lithography process, and 30% lower power consumption.

We couldn't decide between Radeon RX 540 and GeForce GTX 645 OEM. We've got no test results to judge.

Be aware that Radeon RX 540 is a notebook card while GeForce GTX 645 OEM 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 RX 540
Radeon RX 540
NVIDIA GeForce GTX 645 OEM
GeForce GTX 645 OEM

Comparisons with similar GPUs

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Community ratings

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3.7 157 votes

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3.8 76 votes

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Questions & comments

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