NVIDIA GeForce 805A vs NVIDIA GeForce GTX 850M

VS

NVIDIA GeForce 805A

NVIDIA GeForce GTX 850M

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

Main Differences

NVIDIA GeForce 805A 's Advantages

Boost Clock758MHz

Lower TDP (15W vs 45W)

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

Score

Benchmark

FP32 (float)

GeForce 805A

0.291 TFLOPS

GeForce GTX 850M +296%

1.155 TFLOPS

GeForce 805A

VS

GeForce GTX 850M

Graphics Card

Jul 2014

Release Date

Mar 2014

GeForce 800A

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

1001 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

32.03GB/s

Render Config

-

192

Shading Units

640

16

TMUs

40

8

ROPs

16

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

6.064 GPixel/s

Pixel Rate

14.43 GPixel/s

12.13 GTexel/s

Texture Rate

36.08 GTexel/s

-

291.1 GFLOPS

FP32 (float)

1155 GFLOPS

12.13 GFLOPS

FP64 (double)

36.08 GFLOPS

Board Design

15W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK208

GPU Name

GM107

-

GPU Variant

N15P-GT-A1

Kepler 2.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.02 billion

Transistors

1.87 billion

87 mm²

Die Size

148 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

5.0

5.1

Shader Model

5.1

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