AMD Radeon HD 6990M Rebrand vs AMD Radeon HD 8590M

VS

AMD Radeon HD 6990M Rebrand

AMD Radeon HD 8590M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 1024MB VRAM Radeon HD 8590M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M Rebrand 's Advantages

Larger VRAM bandwidth (70.40GB/s vs 36.00GB/s)

480 additional rendering cores

AMD Radeon HD 8590M 's Advantages

Released 1 years and 8 months late

Boost Clock825MHz

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand +142%

1.28 TFLOPS

Radeon HD 8590M

0.528 TFLOPS

Radeon HD 6990M Rebrand

VS

Radeon HD 8590M

Graphics Card

Jul 2011

Release Date

Mar 2013

Vancouver

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

750 MHz

-

Boost Clock

825 MHz

1100 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

70.40GB/s

Bandwidth

36.00GB/s

Render Config

14

Compute Units

5

-

800

Shading Units

320

40

TMUs

20

16

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

6.600 GPixel/s

32.00 GTexel/s

Texture Rate

16.50 GTexel/s

-

1280 GFLOPS

FP32 (float)

528.0 GFLOPS

-

FP64 (double)

33.00 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

No outputs

-

Graphics Processor

Broadway

GPU Name

Sun

Broadway XTX

GPU Variant

-

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

0.69 billion

166 mm²

Die Size

56 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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