AMD Radeon HD 7850M vs AMD Radeon Pro 455

VS

AMD Radeon HD 7850M

AMD Radeon Pro 455

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7850M 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 Pro 455 's Advantages

Released 4 years and 6 months late

Larger VRAM bandwidth (81.28GB/s vs 64.00GB/s)

128 additional rendering cores

Lower TDP (35W vs 40W)

Score

Benchmark

FP32 (float)

Radeon HD 7850M

0.864 TFLOPS

Radeon Pro 455 +51%

1.313 TFLOPS

Radeon HD 7850M

VS

Radeon Pro 455

Graphics Card

Apr 2012

Release Date

Oct 2016

London

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

1000 MHz

Memory Clock

1270 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

81.28GB/s

Render Config

10

Compute Units

12

-

640

Shading Units

768

40

TMUs

48

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

13.68 GPixel/s

27.00 GTexel/s

Texture Rate

41.04 GTexel/s

-

FP16 (half)

1313 GFLOPS

864.0 GFLOPS

FP32 (float)

1313 GFLOPS

54.00 GFLOPS

FP64 (double)

82.08 GFLOPS

Board Design

40W

TDP

35W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Heathrow

GPU Name

Baffin

Heathrow PRO

GPU Variant

Baffin PRO

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.5 billion

Transistors

3 billion

123 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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