NVIDIA GeForce GT 550M vs AMD Radeon HD 6770M Mac Edition

VS

NVIDIA GeForce GT 550M

AMD Radeon HD 6770M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 550M and 512MB VRAM Radeon HD 6770M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 550M 's Advantages

More VRAM (1024GB vs 512GB)

AMD Radeon HD 6770M Mac Edition 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 28.80GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 550M

0.284 TFLOPS

Radeon HD 6770M Mac Edition +145%

0.696 TFLOPS

GeForce GT 550M

VS

Radeon HD 6770M Mac Edition

Graphics Card

Jan 2011

Release Date

Jan 2011

GeForce 500M

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

57.60GB/s

Render Config

-

Compute Units

6

2

SM Count

-

96

Shading Units

480

16

TMUs

24

4

ROPs

8

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

2.960 GPixel/s

Pixel Rate

5.800 GPixel/s

11.84 GTexel/s

Texture Rate

17.40 GTexel/s

-

284.2 GFLOPS

FP32 (float)

696.0 GFLOPS

23.68 GFLOPS

FP64 (double)

-

Board Design

35W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF108

GPU Name

Whistler

N12P-GT1-A1

GPU Variant

Whistler XT (216-0810001)

Fermi

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.585 billion

Transistors

0.716 billion

116 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

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