Radeon R5 A255 vs Pro V340

Primary details

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

Place in the ranking528not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.23no data
ArchitectureGCN 5.0 (2017−2020)GCN 3.0 (2014−2019)
GPU code nameVega 10Topaz
Market segmentWorkstationDesktop
Release date26 August 2018 (6 years ago)2014 (10 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 cores3584384
Core clock speed852 MHz925 MHz
Boost clock speed1500 MHz940 MHz
Number of transistors12,500 million1,550 million
Manufacturing process technology14 nm28 nm
Power consumption (TDP)230 Wattno data
Texture fill rate336.022.56
Floating-point processing power10.75 TFLOPSno data
ROPs648
TMUs22424

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
Length267 mmno data
Width2-slotno data
Supplementary power connectors2x 8-pinno data

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 typeHBM2GDDR5
Maximum RAM amount16 GB1 GB
Memory bus width2048 Bit128 Bit
Memory clock speed945 MHz4 GB/s
Memory bandwidth483.8 GB/s64 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 outputsPortable Device Dependent

API compatibility

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

DirectX12 (12_1)12 (12_0)
Shader Model6.46.5
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.1.1251.2.170

Pros & cons summary


Maximum RAM amount 16 GB 1 GB
Chip lithography 14 nm 28 nm

Pro V340 has a 1500% higher maximum VRAM amount, and a 100% more advanced lithography process.

We couldn't decide between Radeon Pro V340 and Radeon R5 A255. We've got no test results to judge.

Be aware that Radeon Pro V340 is a workstation graphics card while Radeon R5 A255 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 Pro V340
Radeon Pro V340
AMD Radeon R5 A255
Radeon R5 A255

Comparisons with similar GPUs

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Community ratings

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