AMD Radeon Pro 455 vs AMD Radeon HD 6490M

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 455 and 512MB VRAM Radeon HD 6490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 455 's Advantages

Released 5 years and 9 months late

Larger VRAM bandwidth (81.28GB/s vs 25.60GB/s)

608 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro 455 +412%

1.313 TFLOPS

Radeon HD 6490M

0.256 TFLOPS

Radeon Pro 455

VS

Radeon HD 6490M

Graphics Card

Oct 2016

Release Date

Jan 2011

Radeon Pro Mac

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1270 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

81.28GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

12

Compute Units

2

768

Shading Units

160

48

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

128 KB

Theoretical Performance

13.68 GPixel/s

Pixel Rate

3.200 GPixel/s

41.04 GTexel/s

Texture Rate

6.400 GTexel/s

1313 GFLOPS

FP16 (half)

-

1313 GFLOPS

FP32 (float)

256.0 GFLOPS

82.08 GFLOPS

FP64 (double)

-

Graphics Processor

Baffin

GPU Name

Seymour

Baffin PRO

GPU Variant

Seymour XTX S3 (216-0809024)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

3 billion

Transistors

0.37 billion

123 mm²

Die Size

67 mm²

Board Design

35W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.4

Shader Model

5.0

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