AMD Radeon HD 8770M vs AMD Radeon R9 M270X

VS

AMD Radeon HD 8770M

AMD Radeon R9 M270X

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 2GB VRAM Radeon R9 M270X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M270X 's Advantages

Released 1 years and 10 months late

Boost Clock has increased by 21% (1000MHz vs 825MHz)

Larger VRAM bandwidth (88.00GB/s vs 72.00GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M

0.633 TFLOPS

Radeon R9 M270X +142%

1.536 TFLOPS

Radeon HD 8770M

VS

Radeon R9 M270X

Graphics Card

Apr 2013

Release Date

Feb 2015

Solar System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

775 MHz

Base Clock

900 MHz

825 MHz

Boost Clock

1000 MHz

1125 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

88.00GB/s

Render Config

6

Compute Units

12

-

384

Shading Units

768

24

TMUs

48

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

16.00 GPixel/s

19.80 GTexel/s

Texture Rate

48.00 GTexel/s

-

633.6 GFLOPS

FP32 (float)

1.536 TFLOPS

39.60 GFLOPS

FP64 (double)

96.00 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Mars

GPU Name

Saturn

Mars S3 XT (216-0842018)

GPU Variant

Saturn PRO (216-0843044)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

2.08 billion

77 mm²

Die Size

160 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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