Radeon R5 340X OEM vs HD 6450A

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Primary details

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

Place in the ranking1180not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.87no data
ArchitectureTeraScale 2 (2009−2015)GCN 1.0 (2011−2020)
GPU code nameCaicosOland
Market segmentLaptopDesktop
Release date7 April 2011 (13 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 cores160384
Core clock speed625 MHz900 MHz
Boost clock speedno data1050 MHz
Number of transistors370 million950 million
Manufacturing process technology40 nm28 nm
Power consumption (TDP)25 Watt65 Watt
Texture fill rate5.00021.60
Floating-point processing power0.2 TFLOPS0.6912 TFLOPS
ROPs48
TMUs824

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).

InterfaceMXM-A (3.0)PCIe 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 amount512 MB2 GB
Memory bus width64 Bit64 Bit
Memory clock speed533 MHz1000 MHz
Memory bandwidth8.528 GB/s16 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 outputs1x DVI, 1x DisplayPort

API compatibility

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

DirectX11.2 (11_0)12 (11_1)
Shader Model5.05.1
OpenGL4.44.6
OpenCL1.21.2
VulkanN/A1.2.131

Pros & cons summary


Recency 7 April 2011 5 May 2015
Maximum RAM amount 512 MB 2 GB
Chip lithography 40 nm 28 nm
Power consumption (TDP) 25 Watt 65 Watt

HD 6450A has 160% lower power consumption.

R5 340X OEM, on the other hand, has an age advantage of 4 years, a 300% higher maximum VRAM amount, and a 42.9% more advanced lithography process.

We couldn't decide between Radeon HD 6450A and Radeon R5 340X OEM. We've got no test results to judge.

Be aware that Radeon HD 6450A 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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AMD Radeon HD 6450A
Radeon HD 6450A
AMD Radeon R5 340X OEM
Radeon R5 340X OEM

Comparisons with similar GPUs

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Community ratings

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Questions & comments

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