Radeon R9 255 OEM vs HD Graphics 520

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Primary details

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

Place in the ranking864not rated
Place by popularity42not in top-100
Power efficiency9.87no data
ArchitectureGeneration 9.0 (2015−2016)GCN 1.0 (2011−2020)
GPU code nameSkylake GT2Cape Verde
Market segmentLaptopDesktop
Release date1 September 2015 (9 years ago)21 December 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 cores192512
Core clock speed300 MHz900 MHz
Boost clock speed900 MHz930 MHz
Number of transistors189 million1,500 million
Manufacturing process technology14 nm+28 nm
Power consumption (TDP)15 Watt65 Watt
Texture fill rate21.6029.76
Floating-point processing power0.3456 TFLOPS0.9523 TFLOPS
ROPs316
TMUs2432

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).

InterfaceRing BusPCIe 3.0 x16
Widthno data2-slot
Supplementary power connectorsno data1x 6-pin

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 typeDDR3L/LPDDR3/DDR4GDDR5
Maximum RAM amount32 GB2 GB
Memory bus widthSystem Shared128 Bit
Memory clock speedSystem Shared1150 MHz
Memory bandwidthno data73.6 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 ConnectorsPortable Device DependentNo outputs

Supported technologies

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

Quick Sync+no data

API compatibility

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

DirectX12 (12_1)12 (11_1)
Shader Model6.45.1
OpenGL4.64.6
OpenCL3.01.2
Vulkan+1.2.131

Pros & cons summary


Recency 1 September 2015 21 December 2013
Maximum RAM amount 32 GB 2 GB
Chip lithography 14 nm 28 nm
Power consumption (TDP) 15 Watt 65 Watt

HD Graphics 520 has an age advantage of 1 year, a 1500% higher maximum VRAM amount, a 100% more advanced lithography process, and 333.3% lower power consumption.

We couldn't decide between HD Graphics 520 and Radeon R9 255 OEM. We've got no test results to judge.

Be aware that HD Graphics 520 is a notebook card while Radeon R9 255 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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Intel HD Graphics 520
HD Graphics 520
AMD Radeon R9 255 OEM
Radeon R9 255 OEM

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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5 1066 votes

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Questions & comments

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