NVIDIA GeForce GT 650M Mac Edition vs AMD Radeon HD 6970M Mac Edition

VS

NVIDIA GeForce GT 650M Mac Edition

AMD Radeon HD 6970M Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 650M Mac Edition and 2GB VRAM Radeon HD 6970M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 650M Mac Edition 's Advantages

Released 11 months late

Lower TDP (45W vs 75W)

AMD Radeon HD 6970M Mac Edition 's Advantages

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 80.26GB/s)

576 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 650M Mac Edition

0.691 TFLOPS

Radeon HD 6970M Mac Edition +89%

1.306 TFLOPS

GeForce GT 650M Mac Edition

VS

Radeon HD 6970M Mac Edition

Graphics Card

Jul 2012

Release Date

Aug 2011

GeForce 600M

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1254 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

80.26GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

12

-

384

Shading Units

960

32

TMUs

48

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

7.200 GPixel/s

Pixel Rate

21.76 GPixel/s

28.80 GTexel/s

Texture Rate

32.64 GTexel/s

-

691.2 GFLOPS

FP32 (float)

1306 GFLOPS

28.80 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

75W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK107

GPU Name

Blackcomb

N13P-GT-W-A2

GPU Variant

Blackcomb XT (216-0811000)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

1.7 billion

118 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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