AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce GT 745M

VS

AMD Radeon HD 6490M Mac Edition

NVIDIA GeForce GT 745M

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 2GB VRAM GeForce GT 745M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 745M 's Advantages

Released 1 years and 11 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (28.80GB/s vs 25.41GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

GeForce GT 745M +167%

0.643 TFLOPS

Radeon HD 6490M Mac Edition

VS

GeForce GT 745M

Graphics Card

May 2011

Release Date

Apr 2013

Vancouver

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

794 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

25.41GB/s

Bandwidth

28.80GB/s

Render Config

2

Compute Units

-

160

Shading Units

384

8

TMUs

32

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

6.696 GPixel/s

6.000 GTexel/s

Texture Rate

26.78 GTexel/s

-

240.0 GFLOPS

FP32 (float)

642.8 GFLOPS

-

FP64 (double)

26.78 GFLOPS

Board Design

Unknown

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Seymour

GPU Name

GK107

Seymour XTX M2 (216-0809000)

GPU Variant

N14P-LP

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

1.27 billion

67 mm²

Die Size

118 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

3.0

5.0

Shader Model

5.1

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