NVIDIA GeForce GTX 570M vs NVIDIA GeForce GT 645M

VS

NVIDIA GeForce GTX 570M

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 1536MB VRAM GeForce GTX 570M and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 570M 's Advantages

Larger VRAM bandwidth (72.00GB/s vs 28.80GB/s)

NVIDIA GeForce GT 645M 's Advantages

Released 1 years and 4 months late

More VRAM (2GB vs 1536GB)

48 additional rendering cores

Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 570M +42%

0.773 TFLOPS

GeForce GT 645M

0.544 TFLOPS

GeForce GTX 570M

VS

GeForce GT 645M

Graphics Card

Jun 2011

Release Date

Oct 2012

GeForce 500M

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

750 MHz

Memory Clock

900 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

128bit

72.00GB/s

Bandwidth

28.80GB/s

Render Config

-

7

SM Count

-

336

Shading Units

384

56

TMUs

32

24

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

8.050 GPixel/s

Pixel Rate

5.672 GPixel/s

32.20 GTexel/s

Texture Rate

22.69 GTexel/s

-

772.8 GFLOPS

FP32 (float)

544.5 GFLOPS

64.40 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

75W

TDP

32W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GF114

GPU Name

GK107

N12E-GT-A1

GPU Variant

N13P-GS

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

1.27 billion

332 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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