AMD Radeon HD 6450M vs NVIDIA GeForce GT 640M Mac Edition

VS

AMD Radeon HD 6450M

NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6450M and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450M 's Advantages

More VRAM (1024GB vs 512GB)

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Released 2 years and 1 months late

Larger VRAM bandwidth (40.00GB/s vs 12.80GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450M

0.192 TFLOPS

GeForce GT 640M Mac Edition +197%

0.572 TFLOPS

Radeon HD 6450M

VS

GeForce GT 640M Mac Edition

Graphics Card

Jan 2011

Release Date

Feb 2013

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

12.80GB/s

Bandwidth

40.00GB/s

Render Config

2

Compute Units

-

160

Shading Units

384

8

TMUs

32

4

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

5.960 GPixel/s

4.800 GTexel/s

Texture Rate

23.84 GTexel/s

-

192.0 GFLOPS

FP32 (float)

572.2 GFLOPS

-

FP64 (double)

23.84 GFLOPS

Board Design

Unknown

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Seymour

GPU Name

GK107

Seymour PRO S3 (216-0809024)

GPU Variant

N13P-GS

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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