AMD Radeon HD 6490M vs AMD Radeon R9 M290X Mac Edition

VS

AMD Radeon HD 6490M AMD Radeon R9 M290X Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6490M and 2GB VRAM Radeon R9 M290X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M290X Mac Edition 's Advantages

Released 3 years and 10 months late

Boost Clock975MHz

Larger VRAM bandwidth (174.7GB/s vs 25.60GB/s)

864 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M

0.256 TFLOPS

Radeon R9 M290X Mac Edition +680%

1.997 TFLOPS

Radeon HD 6490M

VS

Radeon R9 M290X Mac Edition

Graphics Card

Jan 2011

Release Date

Nov 2014

Vancouver

Generation

Crystal System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

975 MHz

800 MHz

Memory Clock

1365 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

25.60GB/s

Bandwidth

174.7GB/s

Render Config

-

SM Count

-

2

Compute Units

16

160

Shading Units

1024

8

TMUs

64

4

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

Theoretical Performance

3.200 GPixel/s

Pixel Rate

31.20 GPixel/s

6.400 GTexel/s

Texture Rate

62.40 GTexel/s

-

FP16 (half)

-

256.0 GFLOPS

FP32 (float)

1.997 TFLOPS

-

FP64 (double)

124.8 GFLOPS

Graphics Processor

Seymour

GPU Name

Pitcairn

Seymour XTX S3 (216-0809024)

GPU Variant

Pitcairn PRO (215-0828062)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

2.8 billion

67 mm²

Die Size

212 mm²

Board Design

Unknown

TDP

80W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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