NVIDIA GeForce GT 650M Mac Edition vs NVIDIA GeForce GT 420M

VS

NVIDIA GeForce GT 650M Mac Edition

NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 650M Mac Edition and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 650M Mac Edition 's Advantages

Released 1 years and 10 months late

Larger VRAM bandwidth (80.26GB/s vs 25.60GB/s)

288 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GT 650M Mac Edition +259%

0.691 TFLOPS

GeForce GT 420M

0.192 TFLOPS

GeForce GT 650M Mac Edition

VS

GeForce GT 420M

Graphics Card

Jul 2012

Release Date

Sep 2010

GeForce 600M

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1254 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

512MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

80.26GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

2

384

Shading Units

96

32

TMUs

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.200 GPixel/s

Pixel Rate

2.000 GPixel/s

28.80 GTexel/s

Texture Rate

8.000 GTexel/s

-

691.2 GFLOPS

FP32 (float)

192.0 GFLOPS

28.80 GFLOPS

FP64 (double)

16.00 GFLOPS

Board Design

45W

TDP

23W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

GF108

N13P-GT-W-A2

GPU Variant

N11P-GE-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

0.585 billion

118 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.1

5.1

Shader Model

5.1

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