Radeon R5 340 OEM vs UHD Graphics 620

VS

Primary details

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

Place in the ranking805not rated
Place by popularity24not in top-100
Power efficiency12.41no data
ArchitectureGeneration 9.5 (2016−2020)GCN 1.0 (2011−2020)
GPU code nameKaby Lake GT2Oland
Market segmentLaptopDesktop
Release date1 September 2017 (7 years ago)5 May 2015 (9 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 cores192384
Core clock speed300 MHz730 MHz
Boost clock speed1000 MHz780 MHz
Number of transistors189 million950 million
Manufacturing process technology14 nm++28 nm
Power consumption (TDP)15 Watt65 Watt
Texture fill rate24.0018.72
Floating-point processing power0.384 TFLOPS0.599 TFLOPS
ROPs38
TMUs2424

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 x8
Lengthno data145 mm
Widthno data1-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 typeLPDDR3/DDR4GDDR5
Maximum RAM amount32 GB1 GB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared1150 MHz
Memory bandwidthno data36.8 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 Dependent1x DVI, 1x DisplayPort

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
Vulkan1.31.2.131

Pros & cons summary


Recency 1 September 2017 5 May 2015
Maximum RAM amount 32 GB 1 GB
Chip lithography 14 nm 28 nm
Power consumption (TDP) 15 Watt 65 Watt

UHD Graphics 620 has an age advantage of 2 years, a 3100% higher maximum VRAM amount, a 100% more advanced lithography process, and 333.3% lower power consumption.

We couldn't decide between UHD Graphics 620 and Radeon R5 340 OEM. We've got no test results to judge.

Be aware that UHD Graphics 620 is a notebook card while Radeon R5 340 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.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


Intel UHD Graphics 620
UHD Graphics 620
AMD Radeon R5 340 OEM
Radeon R5 340 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

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3 4371 vote

Rate UHD Graphics 620 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3 54 votes

Rate Radeon R5 340 OEM on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.