AMD Radeon HD 6990M Rebrand vs AMD Radeon R9 A375

VS

AMD Radeon HD 6990M Rebrand

AMD Radeon R9 A375

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 2GB VRAM Radeon R9 A375 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M Rebrand 's Advantages

160 additional rendering cores

AMD Radeon R9 A375 's Advantages

Released 3 years and 6 months late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 70.40GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand

1.28 TFLOPS

Radeon R9 A375 +1%

1.299 TFLOPS

Radeon HD 6990M Rebrand

VS

Radeon R9 A375

Graphics Card

Jul 2011

Release Date

Jan 2015

Vancouver

Generation

All-In-One

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

1100 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

70.40GB/s

Bandwidth

72.00GB/s

Render Config

14

Compute Units

10

-

800

Shading Units

640

40

TMUs

40

16

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

16.24 GPixel/s

32.00 GTexel/s

Texture Rate

40.60 GTexel/s

-

1280 GFLOPS

FP32 (float)

1299 GFLOPS

-

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Broadway

GPU Name

Venus

Broadway XTX

GPU Variant

Venus XTX (216-0846033)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

1.5 billion

166 mm²

Die Size

123 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5 (5.1)

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