AMD Radeon HD 6990M Rebrand vs NVIDIA GeForce GT 755M Mac Edition

VS

AMD Radeon HD 6990M Rebrand

NVIDIA GeForce GT 755M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 1024MB VRAM GeForce GT 755M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M Rebrand 's Advantages

416 additional rendering cores

NVIDIA GeForce GT 755M Mac Edition 's Advantages

Released 2 years and 4 months late

Larger VRAM bandwidth (80.00GB/s vs 70.40GB/s)

Lower TDP (50W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand +53%

1.28 TFLOPS

GeForce GT 755M Mac Edition

0.833 TFLOPS

Radeon HD 6990M Rebrand

VS

GeForce GT 755M Mac Edition

Graphics Card

Jul 2011

Release Date

Nov 2013

Vancouver

Generation

GeForce 700M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1100 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

70.40GB/s

Bandwidth

80.00GB/s

Render Config

14

Compute Units

-

800

Shading Units

384

40

TMUs

32

16

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

8.680 GPixel/s

32.00 GTexel/s

Texture Rate

34.72 GTexel/s

-

1280 GFLOPS

FP32 (float)

833.3 GFLOPS

-

FP64 (double)

34.72 GFLOPS

Board Design

100W

TDP

50W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Broadway

GPU Name

GK107

Broadway XTX

GPU Variant

GT 755M

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

1.27 billion

166 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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