NVIDIA GeForce GT 650M vs NVIDIA GeForce 945A

VS

NVIDIA GeForce GT 650M

NVIDIA GeForce 945A

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 650M and 1024MB VRAM GeForce 945A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 945A 's Advantages

Released 3 years late

Boost Clock has increased by 25% (1189MHz vs 950MHz)

Larger VRAM bandwidth (40.10GB/s vs 28.80GB/s)

Lower TDP (33W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GT 650M

0.73 TFLOPS

GeForce 945A +25%

0.913 TFLOPS

GeForce GT 650M

VS

GeForce 945A

Graphics Card

Mar 2012

Release Date

Mar 2015

GeForce 600M

Generation

GeForce 900A

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

835 MHz

Base Clock

1006 MHz

950 MHz

Boost Clock

1189 MHz

900 MHz

Memory Clock

1253 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

40.10GB/s

Render Config

-

384

Shading Units

384

32

TMUs

24

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

7.600 GPixel/s

Pixel Rate

9.512 GPixel/s

30.40 GTexel/s

Texture Rate

28.54 GTexel/s

-

729.6 GFLOPS

FP32 (float)

913.2 GFLOPS

30.40 GFLOPS

FP64 (double)

28.54 GFLOPS

Board Design

45W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

GM108

N13P-GT-A2

GPU Variant

-

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

Unknown

118 mm²

Die Size

Unknown

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

5.0

5.1

Shader Model

5.1

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