NVIDIA GeForce 405M vs NVIDIA GeForce GTX 660M Mac Edition

VS

NVIDIA GeForce 405M NVIDIA GeForce GTX 660M Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM GeForce 405M and 512MB VRAM GeForce GTX 660M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 405M 's Advantages

Lower TDP (14W vs 50W)

NVIDIA GeForce GTX 660M Mac Edition 's Advantages

Released 2 years and 3 months late

Larger VRAM bandwidth (80.00GB/s vs 12.80GB/s)

368 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 405M

0.039 TFLOPS

GeForce GTX 660M Mac Edition +1771%

0.73 TFLOPS

GeForce 405M

VS

GeForce GTX 660M Mac Edition

Graphics Card

Jan 2011

Release Date

Apr 2013

GeForce 400M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

800 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

12.80GB/s

Bandwidth

80.00GB/s

Render Config

2

SM Count

-

Compute Units

-

16

Shading Units

384

8

TMUs

32

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per SMX)

32 KB

L2 Cache

256 KB

Theoretical Performance

2.424 GPixel/s

Pixel Rate

7.600 GPixel/s

4.848 GTexel/s

Texture Rate

30.40 GTexel/s

-

FP16 (half)

-

38.78 GFLOPS

FP32 (float)

729.6 GFLOPS

-

FP64 (double)

30.40 GFLOPS

Graphics Processor

GT218

GPU Name

GK107

-

GPU Variant

-

Tesla 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.26 billion

Transistors

1.27 billion

57 mm²

Die Size

118 mm²

Board Design

14W

TDP

50W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

11.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

1.2

CUDA

3.0

4.1

Shader Model

5.1

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