AMD Radeon HD 8770M vs AMD Radeon R5 M445

VS

AMD Radeon HD 8770M

AMD Radeon R5 M445

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 4GB VRAM Radeon R5 M445 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770M 's Advantages

Boost Clock825MHz

Larger VRAM bandwidth (72.00GB/s vs 32.00GB/s)

AMD Radeon R5 M445 's Advantages

Released 2 years and 9 months late

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon HD 8770M

0.633 TFLOPS

Radeon R5 M445 +11%

0.706 TFLOPS

Radeon HD 8770M

VS

Radeon R5 M445

Graphics Card

Apr 2013

Release Date

Jan 2016

Solar System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

775 MHz

Base Clock

-

825 MHz

Boost Clock

-

1125 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

32.00GB/s

Render Config

6

Compute Units

6

-

384

Shading Units

384

24

TMUs

24

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

7.360 GPixel/s

19.80 GTexel/s

Texture Rate

22.08 GTexel/s

-

633.6 GFLOPS

FP32 (float)

706.6 GFLOPS

39.60 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Mars

GPU Name

Meso

Mars S3 XT (216-0842018)

GPU Variant

Meso XT (216-0864018)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.55 billion

77 mm²

Die Size

125 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1

1.2.170

Vulkan

1.2.170

-

6.5 (5.1)

Shader Model

6.5

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