AMD Radeon HD 6770M Mac Edition vs NVIDIA GeForce GTX 850M

VS

AMD Radeon HD 6770M Mac Edition

NVIDIA GeForce GTX 850M

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 2GB VRAM GeForce GTX 850M 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 32.03GB/s)

Lower TDP (35W vs 45W)

NVIDIA GeForce GTX 850M 's Advantages

Released 3 years and 2 months late

More VRAM (2GB vs 512GB)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition

0.696 TFLOPS

GeForce GTX 850M +65%

1.155 TFLOPS

Radeon HD 6770M Mac Edition

VS

GeForce GTX 850M

Graphics Card

Jan 2011

Release Date

Mar 2014

Vancouver

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1001 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

57.60GB/s

Bandwidth

32.03GB/s

Render Config

6

Compute Units

-

480

Shading Units

640

24

TMUs

40

8

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

14.43 GPixel/s

17.40 GTexel/s

Texture Rate

36.08 GTexel/s

-

696.0 GFLOPS

FP32 (float)

1155 GFLOPS

-

FP64 (double)

36.08 GFLOPS

Board Design

35W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

GM107

Whistler XT (216-0810001)

GPU Variant

N15P-GT-A1

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.87 billion

104 mm²

Die Size

148 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

Shader Model

5.1

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