AMD Radeon HD 6970M Mac Edition vs NVIDIA GeForce GT 635M

VS

AMD Radeon HD 6970M Mac Edition

NVIDIA GeForce GT 635M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 1024MB VRAM GeForce GT 635M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M Mac Edition 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (115.2GB/s vs 28.80GB/s)

864 additional rendering cores

NVIDIA GeForce GT 635M 's Advantages

Released 7 months late

Lower TDP (35W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition +416%

1.306 TFLOPS

GeForce GT 635M

0.253 TFLOPS

Radeon HD 6970M Mac Edition

VS

GeForce GT 635M

Graphics Card

Aug 2011

Release Date

Mar 2012

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

28.80GB/s

Render Config

12

Compute Units

-

SM Count

2

960

Shading Units

96

48

TMUs

16

32

ROPs

4

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

2.640 GPixel/s

32.64 GTexel/s

Texture Rate

10.56 GTexel/s

-

1306 GFLOPS

FP32 (float)

253.4 GFLOPS

-

FP64 (double)

21.12 GFLOPS

Board Design

75W

TDP

35W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

GF108

Blackcomb XT (216-0811000)

GPU Variant

N12E-GE-A1

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.585 billion

212 mm²

Die Size

116 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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