AMD Radeon HD 8770M vs AMD Radeon E9390 PCIe

VS

AMD Radeon HD 8770M

AMD Radeon E9390 PCIe

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 8GB VRAM Radeon E9390 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon E9390 PCIe 's Advantages

Released 6 years and 6 months late

Boost Clock has increased by 32% (1089MHz vs 825MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 72.00GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M

0.633 TFLOPS

Radeon E9390 PCIe +516%

3.903 TFLOPS

Radeon HD 8770M

VS

Radeon E9390 PCIe

Graphics Card

Apr 2013

Release Date

Oct 2019

Solar System

Generation

Embedded

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

775 MHz

Base Clock

713 MHz

825 MHz

Boost Clock

1089 MHz

1125 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

160.0GB/s

Render Config

6

Compute Units

28

-

384

Shading Units

1792

24

TMUs

112

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

34.85 GPixel/s

19.80 GTexel/s

Texture Rate

122.0 GTexel/s

-

FP16 (half)

3.903 TFLOPS

633.6 GFLOPS

FP32 (float)

3.903 TFLOPS

39.60 GFLOPS

FP64 (double)

243.9 GFLOPS

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

4x DisplayPort 1.4a

-

Power Connectors

None

Graphics Processor

Mars

GPU Name

Ellesmere

Mars S3 XT (216-0842018)

GPU Variant

-

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

0.95 billion

Transistors

5.7 billion

77 mm²

Die Size

232 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

-

6.5 (5.1)

Shader Model

6.4

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