NVIDIA GeForce GTX 850M vs NVIDIA GeForce GT 620M

VS

NVIDIA GeForce GTX 850M

NVIDIA GeForce GT 620M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850M 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 850M 's Advantages

Released 1 years and 7 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (32.03GB/s vs 28.80GB/s)

544 additional rendering cores

NVIDIA GeForce GT 620M 's Advantages

Lower TDP (15W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GTX 850M +356%

1.155 TFLOPS

GeForce GT 620M

0.253 TFLOPS

GeForce GTX 850M

VS

GeForce GT 620M

Graphics Card

Mar 2014

Release Date

Aug 2012

GeForce 800M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1001 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

32.03GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

640

Shading Units

96

40

TMUs

16

ROPs

4

-

64 KB (per SMM)

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

14.43 GPixel/s

Pixel Rate

2.640 GPixel/s

36.08 GTexel/s

Texture Rate

10.56 GTexel/s

-

1155 GFLOPS

FP32 (float)

253.4 GFLOPS

36.08 GFLOPS

FP64 (double)

21.12 GFLOPS

Board Design

45W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

GF108

N15P-GT-A1

GPU Variant

N13P-GLP-A1

Maxwell

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.87 billion

Transistors

0.585 billion

148 mm²

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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