NVIDIA GeForce GTX 980MX vs NVIDIA GeForce GTX 660M

VS

NVIDIA GeForce GTX 980MX

NVIDIA GeForce GTX 660M

We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 980MX and 1024MB VRAM GeForce GTX 660M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980MX 's Advantages

Released 4 years and 3 months late

Boost Clock has increased by 24% (1178MHz vs 950MHz)

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 64.00GB/s)

1280 additional rendering cores

NVIDIA GeForce GTX 660M 's Advantages

Lower TDP (50W vs 148W)

Score

Benchmark

FP32 (float)

GeForce GTX 980MX +436%

3.92 TFLOPS

GeForce GTX 660M

0.73 TFLOPS

GeForce GTX 980MX

VS

GeForce GTX 660M

Graphics Card

Jun 2016

Release Date

Mar 2012

GeForce 900M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1050 MHz

Base Clock

835 MHz

1178 MHz

Boost Clock

950 MHz

1500 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

64.00GB/s

Render Config

-

1664

Shading Units

384

104

TMUs

32

64

ROPs

16

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

75.39 GPixel/s

Pixel Rate

7.600 GPixel/s

122.5 GTexel/s

Texture Rate

30.40 GTexel/s

-

3.920 TFLOPS

FP32 (float)

729.6 GFLOPS

122.5 GFLOPS

FP64 (double)

30.40 GFLOPS

Board Design

148W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GM204

GPU Name

GK107

N16E-GXX-A1

GPU Variant

N13E-GE-A2

Maxwell 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5.2 billion

Transistors

1.27 billion

398 mm²

Die Size

118 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.2

CUDA

3.0

6.4

Shader Model

5.1

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