NVIDIA GeForce 805A vs NVIDIA GeForce GT 820M

VS

NVIDIA GeForce 805A

NVIDIA GeForce GT 820M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 805A and 1024MB VRAM GeForce GT 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 805A 's Advantages

Released 8 months late

Boost Clock758MHz

Larger VRAM bandwidth (16.02GB/s vs 14.40GB/s)

96 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 805A

0.291 TFLOPS

GeForce GT 820M +2%

0.298 TFLOPS

GeForce 805A

VS

GeForce GT 820M

Graphics Card

Jul 2014

Release Date

Nov 2013

GeForce 800A

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

1001 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

16.02GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

2

192

Shading Units

96

16

TMUs

16

8

ROPs

8

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

6.064 GPixel/s

Pixel Rate

3.100 GPixel/s

12.13 GTexel/s

Texture Rate

12.40 GTexel/s

-

291.1 GFLOPS

FP32 (float)

297.6 GFLOPS

12.13 GFLOPS

FP64 (double)

24.80 GFLOPS

Board Design

15W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK208

GPU Name

GF117

-

GPU Variant

N15V-GM

Kepler 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.02 billion

Transistors

0.585 billion

87 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

3.5

CUDA

2.1

5.1

Shader Model

5.1

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