NVIDIA GeForce 8600M GS vs NVIDIA GeForce GT 645M

VS

NVIDIA GeForce 8600M GS

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 512MB VRAM GeForce 8600M GS 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 8600M GS 's Advantages

Lower TDP (20W vs 32W)

NVIDIA GeForce GT 645M 's Advantages

Released 5 years and 5 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (28.80GB/s vs 12.80GB/s)

368 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8600M GS

0.029 TFLOPS

GeForce GT 645M +1775%

0.544 TFLOPS

GeForce 8600M GS

VS

GeForce GT 645M

Graphics Card

May 2007

Release Date

Oct 2012

GeForce 8M

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

400 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

DDR3

128bit

Memory Bus

128bit

12.80GB/s

Bandwidth

28.80GB/s

Render Config

-

1

SM Count

-

16

Shading Units

384

8

TMUs

32

4

ROPs

16

-

L1 Cache

16 KB (per SMX)

32 KB

L2 Cache

256 KB

-

Theoretical Performance

1.800 GPixel/s

Pixel Rate

5.672 GPixel/s

3.600 GTexel/s

Texture Rate

22.69 GTexel/s

-

28.80 GFLOPS

FP32 (float)

544.5 GFLOPS

-

FP64 (double)

22.69 GFLOPS

Board Design

20W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

G86

GPU Name

GK107

G86-770-A2

GPU Variant

N13P-GS

Tesla

Architecture

Kepler

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.21 billion

Transistors

1.27 billion

127 mm²

Die Size

118 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

CUDA

3.0

4.0

Shader Model

5.1

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