AMD Radeon R9 M280X vs AMD Radeon HD 6490M

VS

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M280X 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 R9 M280X 's Advantages

Released 4 years and 1 months late

Boost Clock1000MHz

Larger VRAM bandwidth (88.00GB/s vs 25.60GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M280X +600%

1.792 TFLOPS

Radeon HD 6490M

0.256 TFLOPS

Radeon R9 M280X

VS

Radeon HD 6490M

Graphics Card

Feb 2015

Release Date

Jan 2011

Gem System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1375 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

88.00GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

14

Compute Units

2

896

Shading Units

160

56

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

16.00 GPixel/s

Pixel Rate

3.200 GPixel/s

56.00 GTexel/s

Texture Rate

6.400 GTexel/s

-

FP16 (half)

-

1.792 TFLOPS

FP32 (float)

256.0 GFLOPS

112.0 GFLOPS

FP64 (double)

-

Graphics Processor

Saturn

GPU Name

Seymour

Saturn XT (216-0843024)

GPU Variant

Seymour XTX S3 (216-0809024)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

0.37 billion

160 mm²

Die Size

67 mm²

Board Design

Unknown

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

5.0

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