AMD Radeon HD 6990M vs AMD Radeon R7 A265

VS

AMD Radeon HD 6990M

AMD Radeon R7 A265

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 2GB VRAM Radeon R7 A265 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

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

736 additional rendering cores

AMD Radeon R7 A265 's Advantages

Released 2 years and 6 months late

Boost Clock825MHz

Score

Benchmark

FP32 (float)

Radeon HD 6990M +153%

1.602 TFLOPS

Radeon R7 A265

0.633 TFLOPS

Radeon HD 6990M

VS

Radeon R7 A265

Graphics Card

Jul 2011

Release Date

Jan 2014

Vancouver

Generation

All-In-One

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

725 MHz

-

Boost Clock

825 MHz

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

28.80GB/s

Render Config

14

Compute Units

6

-

1120

Shading Units

384

56

TMUs

24

32

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

6.600 GPixel/s

40.04 GTexel/s

Texture Rate

19.80 GTexel/s

-

1.602 TFLOPS

FP32 (float)

633.6 GFLOPS

-

FP64 (double)

39.60 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

Opal

Blackcomb XTX (216-0811030)

GPU Variant

Opal XT

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

0.95 billion

212 mm²

Die Size

77 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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