AMD Radeon HD 6550M vs NVIDIA GeForce GT 645M

VS

AMD Radeon HD 6550M

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6550M and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6550M 's Advantages

16 additional rendering cores

Lower TDP (26W vs 32W)

NVIDIA GeForce GT 645M 's Advantages

Released 1 years and 11 months late

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon HD 6550M

0.48 TFLOPS

GeForce GT 645M +13%

0.544 TFLOPS

Radeon HD 6550M

VS

GeForce GT 645M

Graphics Card

Nov 2010

Release Date

Oct 2012

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

28.80GB/s

Render Config

5

Compute Units

-

400

Shading Units

384

20

TMUs

32

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

5.672 GPixel/s

12.00 GTexel/s

Texture Rate

22.69 GTexel/s

-

480.0 GFLOPS

FP32 (float)

544.5 GFLOPS

-

FP64 (double)

22.69 GFLOPS

Board Design

26W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Lexington

GPU Name

GK107

-

GPU Variant

N13P-GS

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

1.27 billion

334 mm²

Die Size

118 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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