AMD Radeon HD 8770M vs AMD Radeon Pro 455

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 2GB VRAM Radeon Pro 455 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

AMD Radeon Pro 455 's Advantages

Released 3 years and 6 months late

Larger VRAM bandwidth (81.28GB/s vs 72.00GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M

0.633 TFLOPS

Radeon Pro 455 +107%

1.313 TFLOPS

Radeon HD 8770M

VS

Radeon Pro 455

Graphics Card

Apr 2013

Release Date

Oct 2016

Solar System

Generation

Radeon Pro Mac

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

1270 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

81.28GB/s

Render Config

-

SM Count

-

6

Compute Units

12

384

Shading Units

768

24

TMUs

48

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

Theoretical Performance

6.600 GPixel/s

Pixel Rate

13.68 GPixel/s

19.80 GTexel/s

Texture Rate

41.04 GTexel/s

-

FP16 (half)

1313 GFLOPS

633.6 GFLOPS

FP32 (float)

1313 GFLOPS

39.60 GFLOPS

FP64 (double)

82.08 GFLOPS

Graphics Processor

Mars

GPU Name

Baffin

Mars S3 XT (216-0842018)

GPU Variant

Baffin PRO

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

0.95 billion

Transistors

3 billion

77 mm²

Die Size

123 mm²

Board Design

Unknown

TDP

35W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

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

-

CUDA

-

6.5 (5.1)

Shader Model

6.4

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