NVIDIA GeForce GTX 850M vs AMD Radeon HD 7770M

VS

NVIDIA GeForce GTX 850M

AMD Radeon HD 7770M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850M and 1024MB VRAM Radeon HD 7770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850M 's Advantages

Released 1 years and 11 months late

More VRAM (2GB vs 1024GB)

128 additional rendering cores

AMD Radeon HD 7770M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 32.03GB/s)

Lower TDP (32W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GTX 850M +67%

1.155 TFLOPS

Radeon HD 7770M

0.691 TFLOPS

GeForce GTX 850M

VS

Radeon HD 7770M

Graphics Card

Mar 2014

Release Date

Apr 2012

GeForce 800M

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1001 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

32.03GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

8

-

640

Shading Units

512

40

TMUs

32

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

14.43 GPixel/s

Pixel Rate

10.80 GPixel/s

36.08 GTexel/s

Texture Rate

21.60 GTexel/s

-

1155 GFLOPS

FP32 (float)

691.2 GFLOPS

36.08 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

45W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

Chelsea

N15P-GT-A1

GPU Variant

Chelsea XT

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.5 billion

148 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

5.1

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