AMD Radeon R9 M275 vs AMD Radeon HD 6990M Rebrand

VS

AMD Radeon R9 M275 AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M275 and 1024MB VRAM Radeon HD 6990M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M275 's Advantages

Released 2 years and 6 months late

Boost Clock925MHz

More VRAM (2GB vs 1GB)

AMD Radeon HD 6990M Rebrand 's Advantages

Larger VRAM bandwidth (70.40GB/s vs 64.00GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M275

1.184 TFLOPS

Radeon HD 6990M Rebrand +8%

1.28 TFLOPS

Radeon R9 M275

VS

Radeon HD 6990M Rebrand

Graphics Card

Jan 2014

Release Date

Jul 2011

Gem System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1000 MHz

Memory Clock

1100 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

70.40GB/s

Render Config

-

SM Count

-

10

Compute Units

14

640

Shading Units

800

40

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

14.80 GPixel/s

Pixel Rate

12.80 GPixel/s

37.00 GTexel/s

Texture Rate

32.00 GTexel/s

-

FP16 (half)

-

1184 GFLOPS

FP32 (float)

1280 GFLOPS

74.00 GFLOPS

FP64 (double)

-

Graphics Processor

Venus

GPU Name

Broadway

Venus XTX (216-0846033)

GPU Variant

Broadway XTX

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

1.04 billion

123 mm²

Die Size

166 mm²

Board Design

Unknown

TDP

100W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5 (5.1)

Shader Model

5.0

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