Radeon RX 6600 XT vs RX 580G

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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 data63.01
Power efficiencyno data18.37
ArchitectureGCN 4.0 (2016−2020)RDNA 2.0 (2020−2024)
GPU code namePolaris 20Navi 23
Market segmentDesktopDesktop
Release date15 October 2018 (6 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 cores23042048
Core clock speed1257 MHz1968 MHz
Boost clock speed1330 MHz2589 MHz
Number of transistors5,700 million11,060 million
Manufacturing process technology14 nm7 nm
Power consumption (TDP)185 Watt160 Watt
Texture fill rate191.5331.4
Floating-point processing power6.129 TFLOPS10.6 TFLOPS
ROPs3264
TMUs144128
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 x16PCIe 4.0 x8
Length241 mm190 mm
Width2-slot2-slot
Supplementary power connectors1x 8-pin1x 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 typeGDDR5GDDR6
Maximum RAM amount8 GB8 GB
Memory bus width256 Bit128 Bit
Memory clock speed2000 MHz2000 MHz
Memory bandwidth256.0 GB/s256.0 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 Connectors1x HDMI, 3x DisplayPort1x HDMI, 2x DisplayPort
HDMI++

API compatibility

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

DirectX12 (12_0)12.0 Ultimate (12_2)
Shader Model6.46.5
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.2.1311.2

Pros & cons summary


Recency 15 October 2018 30 July 2021
Chip lithography 14 nm 7 nm
Power consumption (TDP) 185 Watt 160 Watt

RX 6600 XT has an age advantage of 2 years, a 100% more advanced lithography process, and 15.6% lower power consumption.

We couldn't decide between Radeon RX 580G 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 RX 580G
Radeon RX 580G
AMD Radeon RX 6600 XT
Radeon RX 6600 XT

Comparisons with similar GPUs

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Community ratings

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


3.9 26 votes

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4.3 4340 votes

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Questions & comments

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