NVIDIA GeForce GTX 850M vs NVIDIA GeForce 805A

VS

NVIDIA GeForce GTX 850M

NVIDIA GeForce 805A

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850M and 1024MB VRAM GeForce 805A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (32.03GB/s vs 16.02GB/s)

448 additional rendering cores

NVIDIA GeForce 805A 's Advantages

Boost Clock758MHz

Lower TDP (15W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GTX 850M +296%

1.155 TFLOPS

GeForce 805A

0.291 TFLOPS

GeForce GTX 850M

VS

GeForce 805A

Graphics Card

Mar 2014

Release Date

Jul 2014

GeForce 800M

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

719 MHz

-

Boost Clock

758 MHz

1001 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

32.03GB/s

Bandwidth

16.02GB/s

Render Config

-

640

Shading Units

192

40

TMUs

16

ROPs

8

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

14.43 GPixel/s

Pixel Rate

6.064 GPixel/s

36.08 GTexel/s

Texture Rate

12.13 GTexel/s

-

1155 GFLOPS

FP32 (float)

291.1 GFLOPS

36.08 GFLOPS

FP64 (double)

12.13 GFLOPS

Board Design

45W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

GK208

N15P-GT-A1

GPU Variant

-

Maxwell

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.02 billion

148 mm²

Die Size

87 mm²

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

3.5

5.1

Shader Model

5.1

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