NVIDIA GeForce GTX 870M vs NVIDIA GeForce GT 445M

VS

NVIDIA GeForce GTX 870M NVIDIA GeForce GT 445M

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M and 1024MB VRAM GeForce GT 445M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 870M 's Advantages

Released 3 years and 6 months late

Boost Clock967MHz

More VRAM (3GB vs 1GB)

Larger VRAM bandwidth (120.0GB/s vs 40.00GB/s)

1200 additional rendering cores

NVIDIA GeForce GT 445M 's Advantages

Lower TDP (35W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 870M +692%

2.599 TFLOPS

GeForce GT 445M

0.328 TFLOPS

GeForce GTX 870M

VS

GeForce GT 445M

Graphics Card

Mar 2014

Release Date

Sep 2010

GeForce 800M

Generation

GeForce 400M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

941 MHz

Base Clock

-

967 MHz

Boost Clock

-

1250 MHz

Memory Clock

625 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

120.0GB/s

Bandwidth

40.00GB/s

Render Config

-

SM Count

3

-

Compute Units

-

1344

Shading Units

144

112

TMUs

24

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

256 KB

Theoretical Performance

27.08 GPixel/s

Pixel Rate

3.420 GPixel/s

108.3 GTexel/s

Texture Rate

13.68 GTexel/s

-

FP16 (half)

-

2.599 TFLOPS

FP32 (float)

328.3 GFLOPS

108.3 GFLOPS

FP64 (double)

27.36 GFLOPS

Graphics Processor

GK104

GPU Name

GF106

N15E-GT-A2

GPU Variant

N11E-GE-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

1.17 billion

294 mm²

Die Size

238 mm²

Board Design

100W

TDP

35W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.1

5.1

Shader Model

5.1

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