NVIDIA GeForce 805A vs NVIDIA GeForce GTX 870M

VS

NVIDIA GeForce 805A

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 805A and 3GB VRAM GeForce GTX 870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 805A 's Advantages

Lower TDP (15W vs 100W)

NVIDIA GeForce GTX 870M 's Advantages

Boost Clock has increased by 28% (967MHz vs 758MHz)

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (120.0GB/s vs 16.02GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 805A

0.291 TFLOPS

GeForce GTX 870M +793%

2.599 TFLOPS

GeForce 805A

VS

GeForce GTX 870M

Graphics Card

Jul 2014

Release Date

Mar 2014

GeForce 800A

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

719 MHz

Base Clock

941 MHz

758 MHz

Boost Clock

967 MHz

1001 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

192bit

16.02GB/s

Bandwidth

120.0GB/s

Render Config

-

192

Shading Units

1344

16

TMUs

112

8

ROPs

24

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

6.064 GPixel/s

Pixel Rate

27.08 GPixel/s

12.13 GTexel/s

Texture Rate

108.3 GTexel/s

-

291.1 GFLOPS

FP32 (float)

2.599 TFLOPS

12.13 GFLOPS

FP64 (double)

108.3 GFLOPS

Board Design

15W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK208

GPU Name

GK104

-

GPU Variant

N15E-GT-A2

Kepler 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.02 billion

Transistors

3.54 billion

87 mm²

Die Size

294 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.5

CUDA

3.0

5.1

Shader Model

5.1

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