AMD Radeon HD 8770M vs NVIDIA GeForce GTX 870M

VS

AMD Radeon HD 8770M

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 3GB VRAM GeForce GTX 870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 870M 's Advantages

Released 11 months late

Boost Clock has increased by 17% (967MHz vs 825MHz)

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (120.0GB/s vs 72.00GB/s)

960 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M

0.633 TFLOPS

GeForce GTX 870M +310%

2.599 TFLOPS

Radeon HD 8770M

VS

GeForce GTX 870M

Graphics Card

Apr 2013

Release Date

Mar 2014

Solar System

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

775 MHz

Base Clock

941 MHz

825 MHz

Boost Clock

967 MHz

1125 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

72.00GB/s

Bandwidth

120.0GB/s

Render Config

6

Compute Units

-

384

Shading Units

1344

24

TMUs

112

8

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

27.08 GPixel/s

19.80 GTexel/s

Texture Rate

108.3 GTexel/s

-

633.6 GFLOPS

FP32 (float)

2.599 TFLOPS

39.60 GFLOPS

FP64 (double)

108.3 GFLOPS

Board Design

Unknown

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Mars

GPU Name

GK104

Mars S3 XT (216-0842018)

GPU Variant

N15E-GT-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

3.54 billion

77 mm²

Die Size

294 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.0

6.5 (5.1)

Shader Model

5.1

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