NVIDIA GeForce GTX 675M vs NVIDIA GeForce 820A

VS

NVIDIA GeForce GTX 675M

NVIDIA GeForce 820A

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 675M and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 675M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (96.00GB/s vs 14.40GB/s)

288 additional rendering cores

NVIDIA GeForce 820A 's Advantages

Released 2 years late

Lower TDP (15W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 675M +219%

0.952 TFLOPS

GeForce 820A

0.298 TFLOPS

GeForce GTX 675M

VS

GeForce 820A

Graphics Card

Mar 2012

Release Date

Mar 2014

GeForce 600M

Generation

GeForce 800A

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

750 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

96.00GB/s

Bandwidth

14.40GB/s

Render Config

-

8

SM Count

2

384

Shading Units

96

64

TMUs

16

32

ROPs

8

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

9.920 GPixel/s

Pixel Rate

3.100 GPixel/s

39.68 GTexel/s

Texture Rate

12.40 GTexel/s

-

952.3 GFLOPS

FP32 (float)

297.6 GFLOPS

79.36 GFLOPS

FP64 (double)

24.80 GFLOPS

Board Design

100W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF114

GPU Name

GF117

N13E-GS1-A1

GPU Variant

N15V-GM

Fermi 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

0.585 billion

332 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

2.1

5.1

Shader Model

5.1

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