Radeon RX 6600 XT vs R5 340X OEM

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Primary details

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

Place in the rankingnot rated91
Place by popularitynot in top-10093
Cost-effectiveness evaluationno data63.03
Power efficiencyno data18.37
ArchitectureGCN 1.0 (2011−2020)RDNA 2.0 (2020−2024)
GPU code nameOlandNavi 23
Market segmentDesktopDesktop
Release date5 May 2015 (9 years ago)30 July 2021 (3 years ago)
Launch price (MSRP)no data$379

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores3842048
Core clock speed900 MHz1968 MHz
Boost clock speed1050 MHz2589 MHz
Number of transistors950 million11,060 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)65 Watt160 Watt
Texture fill rate21.60331.4
Floating-point processing power0.6912 TFLOPS10.6 TFLOPS
ROPs864
TMUs24128
Ray Tracing Coresno data32

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 x8PCIe 4.0 x8
Length145 mm190 mm
Width1-slot2-slot
Supplementary power connectorsNone1x 8-pin

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 typeDDR3GDDR6
Maximum RAM amount2 GB8 GB
Memory bus width64 Bit128 Bit
Memory clock speed1000 MHz2000 MHz
Memory bandwidth16 GB/s256.0 GB/s
Shared memoryno 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 Connectors1x DVI, 1x DisplayPort1x HDMI, 2x DisplayPort
HDMI-+

API compatibility

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

DirectX12 (11_1)12.0 Ultimate (12_2)
Shader Model5.16.5
OpenGL4.64.6
OpenCL1.22.1
Vulkan1.2.1311.2

Pros & cons summary


Recency 5 May 2015 30 July 2021
Maximum RAM amount 2 GB 8 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 65 Watt 160 Watt

R5 340X OEM has 146.2% lower power consumption.

RX 6600 XT, on the other hand, has an age advantage of 6 years, a 300% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between Radeon R5 340X OEM and Radeon RX 6600 XT. We've got no test results to judge.


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 RX 6600 XT
Radeon RX 6600 XT

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Community ratings

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3.5 470 votes

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Questions & comments

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