NVIDIA GeForce 945A vs NVIDIA GeForce GT 650M

VS

NVIDIA GeForce 945A

NVIDIA GeForce GT 650M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 945A and 1024MB VRAM GeForce GT 650M 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 945A +25%

0.913 TFLOPS

GeForce GT 650M

0.73 TFLOPS

GeForce 945A

VS

GeForce GT 650M

Graphics Card

Mar 2015

Release Date

Mar 2012

GeForce 900A

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1006 MHz

Base Clock

835 MHz

1189 MHz

Boost Clock

950 MHz

1253 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

40.10GB/s

Bandwidth

28.80GB/s

Render Config

-

384

Shading Units

384

24

TMUs

32

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

9.512 GPixel/s

Pixel Rate

7.600 GPixel/s

28.54 GTexel/s

Texture Rate

30.40 GTexel/s

-

913.2 GFLOPS

FP32 (float)

729.6 GFLOPS

28.54 GFLOPS

FP64 (double)

30.40 GFLOPS

Board Design

33W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

GK107

-

GPU Variant

N13P-GT-A2

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.27 billion

Unknown

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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