NVIDIA GeForce 945A vs NVIDIA GeForce 620M

VS

NVIDIA GeForce 945A

NVIDIA GeForce 620M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 945A and 1024MB VRAM GeForce 620M 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 Clock1189MHz

Larger VRAM bandwidth (40.10GB/s vs 14.40GB/s)

288 additional rendering cores

NVIDIA GeForce 620M 's Advantages

Lower TDP (15W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 945A +280%

0.913 TFLOPS

GeForce 620M

0.24 TFLOPS

GeForce 945A

VS

GeForce 620M

Graphics Card

Mar 2015

Release Date

Mar 2012

GeForce 900A

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1006 MHz

Base Clock

-

1189 MHz

Boost Clock

-

1253 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

40.10GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

2

384

Shading Units

96

24

TMUs

16

8

ROPs

8

-

64 KB (per SMM)

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

9.512 GPixel/s

Pixel Rate

2.500 GPixel/s

28.54 GTexel/s

Texture Rate

10.00 GTexel/s

-

913.2 GFLOPS

FP32 (float)

240.0 GFLOPS

28.54 GFLOPS

FP64 (double)

20.00 GFLOPS

Board Design

33W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

GF117

-

GPU Variant

N13P-GLP

Maxwell

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

0.585 billion

Unknown

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.0

CUDA

2.1

5.1

Shader Model

5.1

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