GeForce GTX 660 vs Radeon RX Vega M GL

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Aggregate performance score

We've compared Radeon RX Vega M GL with GeForce GTX 660, including specs and performance data.

RX Vega M GL
2018
4 GB HBM2, 65 Watt
9.75

GTX 660 outperforms RX Vega M GL by a small 6% based on our aggregate benchmark results.

Primary details

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

Place in the ranking451433
Place by popularitynot in top-10089
Cost-effectiveness evaluationno data3.28
Power efficiency10.825.34
ArchitectureGCN 4.0 (2016−2020)Kepler (2012−2018)
GPU code namePolaris 22GK106
Market segmentLaptopDesktop
Release date1 February 2018 (6 years ago)6 September 2012 (12 years ago)
Launch price (MSRP)no data$229

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 cores1280960
Core clock speed931 MHz980 MHz
Boost clock speed1011 MHz1033 MHz
Number of transistors5,000 million2,540 million
Manufacturing process technology14 nm28 nm
Power consumption (TDP)65 Watt140 Watt
Texture fill rate80.8882.56
Floating-point processing power2.588 TFLOPS1.981 TFLOPS
ROPs3224
TMUs8080

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 supportno dataPCI Express 3.0
InterfaceIGPPCIe 3.0 x16
Lengthno data241 mm
Heightno data4.376" (11.1 cm)
Widthno data2-slot
Supplementary power connectorsno data1x 6-pin
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 typeHBM2GDDR5
Maximum RAM amount4 GB2 GB
Memory bus width1024 Bit192-bit GDDR5
Memory clock speed700 MHz6.0 GB/s
Memory bandwidth179.2 GB/s144.2 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 ConnectorsNo outputsOne Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Multi monitor supportno data4 displays
HDMI-+
HDCP-+
Maximum VGA resolutionno data2048x1536
Audio input for HDMIno dataInternal

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 (12_0)12 (11_0)
Shader Model6.45.1
OpenGL4.64.3
OpenCL2.01.2
Vulkan1.2.1311.1.126
CUDA-+

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

RX Vega M GL 9.75
GTX 660 10.37
+6.4%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

RX Vega M GL 3764
GTX 660 4001
+6.3%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD40−45
−17.5%
47
+17.5%

FPS performance in popular games

Full HD
High Preset

The Witcher 3: Wild Hunt 24−27
−3.8%
27−30
+3.8%

Full HD
Ultra Preset

The Witcher 3: Wild Hunt 24−27
−3.8%
27−30
+3.8%

4K
High Preset

The Witcher 3: Wild Hunt 7−8
+0%
7−8
+0%

This is how RX Vega M GL and GTX 660 compete in popular games:

  • GTX 660 is 18% faster in 1080p

Pros & cons summary


Performance score 9.75 10.37
Recency 1 February 2018 6 September 2012
Maximum RAM amount 4 GB 2 GB
Chip lithography 14 nm 28 nm
Power consumption (TDP) 65 Watt 140 Watt

RX Vega M GL has an age advantage of 5 years, a 100% higher maximum VRAM amount, a 100% more advanced lithography process, and 115.4% lower power consumption.

GTX 660, on the other hand, has a 6.4% higher aggregate performance score.

Given the minimal performance differences, no clear winner can be declared between Radeon RX Vega M GL and GeForce GTX 660.

Be aware that Radeon RX Vega M GL is a notebook card while GeForce GTX 660 is a desktop one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon RX Vega M GL
Radeon RX Vega M GL
NVIDIA GeForce GTX 660
GeForce GTX 660

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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


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Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.