AMD Radeon HD 6770M Mac Edition vs NVIDIA GeForce GT 445M

VS

AMD Radeon HD 6770M Mac Edition

NVIDIA GeForce GT 445M

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 1024MB VRAM GeForce GT 445M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770M Mac Edition 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 40.00GB/s)

336 additional rendering cores

NVIDIA GeForce GT 445M 's Advantages

More VRAM (1024GB vs 512GB)

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition +112%

0.696 TFLOPS

GeForce GT 445M

0.328 TFLOPS

Radeon HD 6770M Mac Edition

VS

GeForce GT 445M

Graphics Card

Jan 2011

Release Date

Sep 2010

Vancouver

Generation

GeForce 400M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

625 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

57.60GB/s

Bandwidth

40.00GB/s

Render Config

6

Compute Units

-

SM Count

3

480

Shading Units

144

24

TMUs

24

8

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

3.420 GPixel/s

17.40 GTexel/s

Texture Rate

13.68 GTexel/s

-

696.0 GFLOPS

FP32 (float)

328.3 GFLOPS

-

FP64 (double)

27.36 GFLOPS

Board Design

35W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

GF106

Whistler XT (216-0810001)

GPU Variant

N11E-GE-A1

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

1.17 billion

104 mm²

Die Size

238 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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