Radeon R5 340X OEM vs GeForce GT 420M

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Primary details

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

Place in the ranking1103not rated
Place by popularitynot in top-100not in top-100
Power efficiency3.07no data
ArchitectureFermi (2010−2014)GCN 1.0 (2011−2020)
GPU code nameGF108Oland
Market segmentLaptopDesktop
Release date3 September 2010 (14 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 cores96384
Core clock speed500 MHz900 MHz
Boost clock speedno data1050 MHz
Number of transistors585 million950 million
Manufacturing process technology40 nm28 nm
Power consumption (TDP)23 Watt65 Watt
Texture fill rate8.00021.60
Floating-point processing power0.192 TFLOPS0.6912 TFLOPS
ROPs48
TMUs1624

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 sizemedium sizedno data
InterfacePCIe 2.0 x16PCIe 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 typeDDR3DDR3
Maximum RAM amount1 GB2 GB
Memory bus width128 Bit64 Bit
Memory clock speed800 MHz1000 MHz
Memory bandwidth25.6 GB/s16 GB/s
Shared memory-no data

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 DisplayPort

API compatibility

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

DirectX12 API12 (11_1)
Shader Model5.15.1
OpenGL4.54.6
OpenCL1.11.2
VulkanN/A1.2.131
CUDA+-

Pros & cons summary


Recency 3 September 2010 5 May 2015
Maximum RAM amount 1 GB 2 GB
Chip lithography 40 nm 28 nm
Power consumption (TDP) 23 Watt 65 Watt

GT 420M has 182.6% lower power consumption.

R5 340X OEM, on the other hand, has an age advantage of 4 years, a 100% higher maximum VRAM amount, and a 42.9% more advanced lithography process.

We couldn't decide between GeForce GT 420M and Radeon R5 340X OEM. We've got no test results to judge.

Be aware that GeForce GT 420M is a notebook card while Radeon R5 340X 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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NVIDIA GeForce GT 420M
GeForce GT 420M
AMD Radeon R5 340X OEM
Radeon R5 340X OEM

Comparisons with similar GPUs

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Community ratings

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2.7 122 votes

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Questions & comments

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