AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce 805A

VS

AMD Radeon HD 6490M Mac Edition

NVIDIA GeForce 805A

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 1024MB VRAM GeForce 805A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490M Mac Edition 's Advantages

Larger VRAM bandwidth (25.41GB/s vs 16.02GB/s)

NVIDIA GeForce 805A 's Advantages

Released 3 years and 2 months late

Boost Clock758MHz

More VRAM (1024GB vs 256GB)

32 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

GeForce 805A +21%

0.291 TFLOPS

Radeon HD 6490M Mac Edition

VS

GeForce 805A

Graphics Card

May 2011

Release Date

Jul 2014

Vancouver

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

719 MHz

-

Boost Clock

758 MHz

794 MHz

Memory Clock

1001 MHz

Memory

256MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

25.41GB/s

Bandwidth

16.02GB/s

Render Config

2

Compute Units

-

160

Shading Units

192

8

TMUs

16

4

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

6.064 GPixel/s

6.000 GTexel/s

Texture Rate

12.13 GTexel/s

-

240.0 GFLOPS

FP32 (float)

291.1 GFLOPS

-

FP64 (double)

12.13 GFLOPS

Board Design

Unknown

TDP

15W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Seymour

GPU Name

GK208

Seymour XTX M2 (216-0809000)

GPU Variant

-

TeraScale 2

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

1.02 billion

67 mm²

Die Size

87 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

5.0

Shader Model

5.1

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