NVIDIA GeForce GTX 670MX vs AMD Radeon HD 6990M

VS

NVIDIA GeForce GTX 670MX

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 670MX and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 670MX 's Advantages

Released 1 years and 3 months late

More VRAM (3GB vs 2GB)

Lower TDP (75W vs 100W)

AMD Radeon HD 6990M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 67.20GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 670MX

1.154 TFLOPS

Radeon HD 6990M +38%

1.602 TFLOPS

GeForce GTX 670MX

VS

Radeon HD 6990M

Graphics Card

Oct 2012

Release Date

Jul 2011

GeForce 600M

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

700 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

67.20GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

14

-

960

Shading Units

1120

80

TMUs

56

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

12.02 GPixel/s

Pixel Rate

22.88 GPixel/s

48.08 GTexel/s

Texture Rate

40.04 GTexel/s

-

1154 GFLOPS

FP32 (float)

1.602 TFLOPS

48.08 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK104

GPU Name

Blackcomb

N13E-GR-A2

GPU Variant

Blackcomb XTX (216-0811030)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

1.7 billion

294 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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