Radeon RX Vega 56 Mobile vs GeForce GTX 660 Ti

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Primary details

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

Place in the ranking418not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.19no data
Power efficiency5.24no data
ArchitectureKepler (2012−2018)GCN 5.0 (2017−2020)
GPU code nameGK104Vega 10
Market segmentDesktopLaptop
Release date16 August 2012 (12 years ago)1 June 2018 (6 years ago)
Launch price (MSRP)$299 no data

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 cores13443584
Core clock speed915 MHz1138 MHz
Boost clock speed980 MHz1301 MHz
Number of transistors3,540 million12,500 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)150 Watt120 Watt
Texture fill rate109.8291.4
Floating-point processing power2.634 TFLOPS9.326 TFLOPS
ROPs2464
TMUs112224

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).

Bus supportPCI Express 3.0no data
InterfacePCIe 3.0 x16PCIe 3.0 x16
Length241 mmno data
Height4.376" (11.1 cm)no data
Width2-slotno data
Supplementary power connectors2x 6-pinno data
SLI options+-

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 typeGDDR5HBM2
Maximum RAM amount2 GB8 GB
Memory bus width192-bit GDDR52048 Bit
Memory clock speed6.0 GB/s800 MHz
Memory bandwidth144.2 GB/s409.6 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 ConnectorsOne Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort1x HDMI, 3x DisplayPort
Multi monitor support4 displaysno data
HDMI++
HDCP+-
Maximum VGA resolution2048x1536no data
Audio input for HDMIInternalno data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Blu-Ray+-
3D Gaming+-
3D Vision+-

API compatibility

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

DirectX12 (11_0)12 (12_1)
Shader Model5.16.4
OpenGL4.34.6
OpenCL1.22.0
Vulkan1.1.1261.1.125
CUDA+-

Pros & cons summary


Recency 16 August 2012 1 June 2018
Maximum RAM amount 2 GB 8 GB
Chip lithography 28 nm 14 nm
Power consumption (TDP) 150 Watt 120 Watt

RX Vega 56 Mobile has an age advantage of 5 years, a 300% higher maximum VRAM amount, a 100% more advanced lithography process, and 25% lower power consumption.

We couldn't decide between GeForce GTX 660 Ti and Radeon RX Vega 56 Mobile. We've got no test results to judge.

Be aware that GeForce GTX 660 Ti is a desktop card while Radeon RX Vega 56 Mobile 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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NVIDIA GeForce GTX 660 Ti
GeForce GTX 660 Ti
AMD Radeon RX Vega 56 Mobile
Radeon RX Vega 56 Mobile

Comparisons with similar GPUs

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Community ratings

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