NVIDIA GeForce 945A vs NVIDIA GeForce GT 640M

VS

NVIDIA GeForce 945A NVIDIA GeForce GT 640M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 945A and 2GB VRAM GeForce GT 640M 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 28.80GB/s)

NVIDIA GeForce GT 640M 's Advantages

More VRAM (2GB vs 1GB)

Lower TDP (32W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 945A +90%

0.913 TFLOPS

GeForce GT 640M

0.48 TFLOPS

GeForce 945A

VS

GeForce GT 640M

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

-

1189 MHz

Boost Clock

-

1253 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

40.10GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

Compute Units

-

384

Shading Units

384

24

TMUs

32

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

Theoretical Performance

9.512 GPixel/s

Pixel Rate

5.000 GPixel/s

28.54 GTexel/s

Texture Rate

20.00 GTexel/s

-

FP16 (half)

-

913.2 GFLOPS

FP32 (float)

480.0 GFLOPS

28.54 GFLOPS

FP64 (double)

20.00 GFLOPS

Graphics Processor

GM108

GPU Name

GK107

-

GPU Variant

N13P-GS

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.27 billion

Unknown

Die Size

118 mm²

Board Design

33W

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

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

Related GPU Comparisons

1

NVIDIA GeForce RTX 3060 Mobile vs NVIDIA GeForce 945A

2

NVIDIA GeForce RTX 2080 SUPER Mobile vs NVIDIA GeForce 945A

3

NVIDIA GeForce MX130 vs NVIDIA GeForce 945A

4

NVIDIA GeForce RTX 3070 Ti Mobile vs NVIDIA GeForce 945A

5

NVIDIA GeForce GTX 675MX Mac Edition vs NVIDIA GeForce 945A

6

NVIDIA RTX 3000 Mobile Ada Generation vs NVIDIA GeForce 945A

7

AMD Radeon Pro 570 vs NVIDIA GeForce 945A

8

NVIDIA GeForce 945A vs NVIDIA GeForce 805A

9

NVIDIA GeForce 945A vs AMD Radeon RX 580 Mobile

10

NVIDIA GeForce 945A vs AMD Radeon RX Vega M GH

Related News

1

NVIDIA Grace CPU Benchmark Results Released, Stunning Performance

2

Minisforum Launches UM890 Pro Mini PC with R9 8945HS and Dual USB4 Ports

3

Does the Apple A18 Neural Engine Boast Superior Performance? Computational Power May Surpass M4 Chip

4

AMD's Commitment to Pioneering Each Generation with Cutting-Edge Process Technology and Continuous Innovation in Design, Packaging, and Assembly

5

NVIDIA to Ramp Up Orders and Add New Suppliers to Meet Explosive Demand for Blackwell Products

6

NVIDIA Informs Brands of Reduced Supply for RTX 40 Series GPUs

7

Only 3 Weeks Left! AMD Zen5 Launching Soon

8

Ilya Departs OpenAI to Launch New Company Aiming at Superintelligence!

9

Comprehensive Overview of AMD Ryzen 9000 Zen5 Desktop CPUs

10

Intel May Increase Base Frequencies for Arrow Lake-S / H / HX, High-End Chips to Reach 3GHz or Higher