NVIDIA GeForce GTX 870M vs AMD Radeon HD 7770M

VS

NVIDIA GeForce GTX 870M

AMD Radeon HD 7770M

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M 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 870M 's Advantages

Released 1 years and 11 months late

Boost Clock967MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (120.0GB/s vs 64.00GB/s)

832 additional rendering cores

AMD Radeon HD 7770M 's Advantages

Lower TDP (32W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 870M +276%

2.599 TFLOPS

Radeon HD 7770M

0.691 TFLOPS

GeForce GTX 870M

VS

Radeon HD 7770M

Graphics Card

Mar 2014

Release Date

Apr 2012

GeForce 800M

Generation

London

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

941 MHz

Base Clock

-

967 MHz

Boost Clock

-

1250 MHz

Memory Clock

1000 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

120.0GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

8

-

1344

Shading Units

512

112

TMUs

32

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

27.08 GPixel/s

Pixel Rate

10.80 GPixel/s

108.3 GTexel/s

Texture Rate

21.60 GTexel/s

-

2.599 TFLOPS

FP32 (float)

691.2 GFLOPS

108.3 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

100W

TDP

32W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

Chelsea

N15E-GT-A2

GPU Variant

Chelsea XT

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.5 billion

294 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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