NVIDIA GeForce 805A vs NVIDIA GeForce GT 650M Mac Edition

VS

NVIDIA GeForce 805A

NVIDIA GeForce GT 650M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 805A and 512MB VRAM GeForce GT 650M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 805A 's Advantages

Released 2 years late

Boost Clock758MHz

More VRAM (1024GB vs 512GB)

Lower TDP (15W vs 45W)

NVIDIA GeForce GT 650M Mac Edition 's Advantages

Larger VRAM bandwidth (80.26GB/s vs 16.02GB/s)

192 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 805A

0.291 TFLOPS

GeForce GT 650M Mac Edition +137%

0.691 TFLOPS

GeForce 805A

VS

GeForce GT 650M Mac Edition

Graphics Card

Jul 2014

Release Date

Jul 2012

GeForce 800A

Generation

GeForce 600M

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

1254 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

80.26GB/s

Render Config

-

192

Shading Units

384

16

TMUs

32

8

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

6.064 GPixel/s

Pixel Rate

7.200 GPixel/s

12.13 GTexel/s

Texture Rate

28.80 GTexel/s

-

291.1 GFLOPS

FP32 (float)

691.2 GFLOPS

12.13 GFLOPS

FP64 (double)

28.80 GFLOPS

Board Design

15W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK208

GPU Name

GK107

-

GPU Variant

N13P-GT-W-A2

Kepler 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.02 billion

Transistors

1.27 billion

87 mm²

Die Size

118 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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