NVIDIA GeForce GT 650M vs NVIDIA GeForce GT 640M Mac Edition

VS

NVIDIA GeForce GT 650M NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 650M and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 650M 's Advantages

Boost Clock950MHz

More VRAM (1024GB vs 512GB)

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Released 11 months late

Larger VRAM bandwidth (40.00GB/s vs 28.80GB/s)

Lower TDP (32W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GT 650M +27%

0.73 TFLOPS

GeForce GT 640M Mac Edition

0.572 TFLOPS

GeForce GT 650M

VS

GeForce GT 640M Mac Edition

Graphics Card

Mar 2012

Release Date

Feb 2013

GeForce 600M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

835 MHz

Base Clock

-

950 MHz

Boost Clock

-

900 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

40.00GB/s

Render Config

-

SM Count

-

Compute Units

-

384

Shading Units

384

32

TMUs

32

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

128 KB

Theoretical Performance

7.600 GPixel/s

Pixel Rate

5.960 GPixel/s

30.40 GTexel/s

Texture Rate

23.84 GTexel/s

-

FP16 (half)

-

729.6 GFLOPS

FP32 (float)

572.2 GFLOPS

30.40 GFLOPS

FP64 (double)

23.84 GFLOPS

Graphics Processor

GK107

GPU Name

GK107

N13P-GT-A2

GPU Variant

N13P-GS

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

1.27 billion

118 mm²

Die Size

118 mm²

Board Design

45W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.0

5.1

Shader Model

5.1

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