NVIDIA GeForce GTX 870M vs NVIDIA GeForce GT 620M

VS

NVIDIA GeForce GTX 870M

NVIDIA GeForce GT 620M

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M and 1024MB VRAM GeForce GT 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 870M 's Advantages

Released 1 years and 7 months late

Boost Clock967MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (120.0GB/s vs 28.80GB/s)

1248 additional rendering cores

NVIDIA GeForce GT 620M 's Advantages

Lower TDP (15W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 870M +927%

2.599 TFLOPS

GeForce GT 620M

0.253 TFLOPS

GeForce GTX 870M

VS

GeForce GT 620M

Graphics Card

Mar 2014

Release Date

Aug 2012

GeForce 800M

Generation

GeForce 600M

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

900 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

128bit

120.0GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

1344

Shading Units

96

112

TMUs

16

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

27.08 GPixel/s

Pixel Rate

2.640 GPixel/s

108.3 GTexel/s

Texture Rate

10.56 GTexel/s

-

2.599 TFLOPS

FP32 (float)

253.4 GFLOPS

108.3 GFLOPS

FP64 (double)

21.12 GFLOPS

Board Design

100W

TDP

15W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

GF108

N15E-GT-A2

GPU Variant

N13P-GLP-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.585 billion

294 mm²

Die Size

116 mm²

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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