Radeon HD 8670A vs R5 340X OEM

Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2011−2020)GCN 1.0 (2011−2020)
GPU code nameOlandSun
Market segmentDesktopLaptop
Release date5 May 2015 (9 years ago)2 February 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 cores384320
Core clock speed900 MHz600 MHz
Boost clock speed1050 MHzno data
Number of transistors950 million690 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)65 Watt45 Watt
Texture fill rate21.6012.00
Floating-point processing power0.6912 TFLOPS0.384 TFLOPS
ROPs88
TMUs2420

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 x8MXM-A (3.0)
Length145 mmno data
Width1-slotno data
Supplementary power connectorsNoneno 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 typeDDR3DDR3
Maximum RAM amount2 GB1 GB
Memory bus width64 Bit64 Bit
Memory clock speed1000 MHz1000 MHz
Memory bandwidth16 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 Connectors1x DVI, 1x DisplayPortNo outputs

API compatibility

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

DirectX12 (11_1)12 (11_1)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.2.1311.2.131

Pros & cons summary


Recency 5 May 2015 2 February 2013
Maximum RAM amount 2 GB 1 GB
Power consumption (TDP) 65 Watt 45 Watt

R5 340X OEM has an age advantage of 2 years, and a 100% higher maximum VRAM amount.

HD 8670A, on the other hand, has 44.4% lower power consumption.

We couldn't decide between Radeon R5 340X OEM and Radeon HD 8670A. We've got no test results to judge.

Be aware that Radeon R5 340X OEM is a desktop card while Radeon HD 8670A is a notebook 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 R5 340X OEM
Radeon R5 340X OEM
AMD Radeon HD 8670A
Radeon HD 8670A

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Community ratings

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3.5 455 votes

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Questions & comments

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