Radeon RX 6400 vs GeForce GTX 1660 Ti Mobile Refresh

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Primary details

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

Place in the rankingnot rated278
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data53.13
Power efficiencyno data26.74
ArchitectureTuring (2018−2022)RDNA 2.0 (2020−2024)
GPU code nameTU116BNavi 24
Market segmentLaptopDesktop
Release date15 May 2019 (5 years ago)19 January 2022 (2 years ago)
Launch price (MSRP)no data$159

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 cores1536768
Core clock speed1455 MHz1923 MHz
Boost clock speed1590 MHz2321 MHz
Number of transistors6,600 million5,400 million
Manufacturing process technology12 nm6 nm
Power consumption (TDP)no data53 Watt
Texture fill rate152.6111.4
Floating-point processing power4.884 TFLOPS3.565 TFLOPS
ROPs4832
TMUs9648
Ray Tracing Coresno data12

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 x4
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 typeGDDR6GDDR6
Maximum RAM amount6 GB4 GB
Memory bus width192 Bit64 Bit
Memory clock speed2000 MHz2000 MHz
Memory bandwidth384.0 GB/s128.0 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 HDMI, 3x DisplayPort1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI++

API compatibility

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

DirectX12 (12_1)12 Ultimate (12_2)
Shader Model6.56.7
OpenGL4.64.6
OpenCL1.22.2
Vulkan1.21.3
CUDA7.5-

Pros & cons summary


Recency 15 May 2019 19 January 2022
Maximum RAM amount 6 GB 4 GB
Chip lithography 12 nm 6 nm

GTX 1660 Ti Mobile Refresh has a 50% higher maximum VRAM amount.

RX 6400, on the other hand, has an age advantage of 2 years, and a 100% more advanced lithography process.

We couldn't decide between GeForce GTX 1660 Ti Mobile Refresh and Radeon RX 6400. We've got no test results to judge.

Be aware that GeForce GTX 1660 Ti Mobile Refresh is a notebook card while Radeon RX 6400 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 GTX 1660 Ti Mobile Refresh
GeForce GTX 1660 Ti Mobile Refresh
AMD Radeon RX 6400
Radeon RX 6400

Comparisons with similar GPUs

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Community ratings

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3.8 44 votes

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4.1 1843 votes

Rate Radeon RX 6400 on a scale of 1 to 5:

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Questions & comments

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