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

VS

NVIDIA GeForce GTX 850M

AMD Radeon HD 6770M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850M 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 GTX 850M 's Advantages

Released 3 years and 2 months late

More VRAM (2GB vs 512GB)

160 additional rendering cores

AMD Radeon HD 6770M Mac Edition 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 32.03GB/s)

Lower TDP (35W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GTX 850M +65%

1.155 TFLOPS

Radeon HD 6770M Mac Edition

0.696 TFLOPS

GeForce GTX 850M

VS

Radeon HD 6770M Mac Edition

Graphics Card

Mar 2014

Release Date

Jan 2011

GeForce 800M

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1001 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

32.03GB/s

Bandwidth

57.60GB/s

Render Config

-

Compute Units

6

-

640

Shading Units

480

40

TMUs

24

16

ROPs

8

-

64 KB (per SMM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

14.43 GPixel/s

Pixel Rate

5.800 GPixel/s

36.08 GTexel/s

Texture Rate

17.40 GTexel/s

-

1155 GFLOPS

FP32 (float)

696.0 GFLOPS

36.08 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

Whistler

N15P-GT-A1

GPU Variant

Whistler XT (216-0810001)

Maxwell

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.87 billion

Transistors

0.716 billion

148 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

5.0

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