AMD Radeon HD 6530 vs AMD Radeon HD 6990

VS

AMD Radeon HD 6530

AMD Radeon HD 6990

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6530 and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6530 's Advantages

Lower TDP (39W vs 375W)

AMD Radeon HD 6990 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 19.20GB/s)

1136 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6530

0.52 TFLOPS

Radeon HD 6990 +390%

2.55 TFLOPS

Radeon HD 6530

VS

Radeon HD 6990

Graphics Card

May 2011

Release Date

Mar 2011

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

600 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

19.20GB/s

Bandwidth

160.0GB/s

Render Config

5

Compute Units

24

-

400

Shading Units

1536

20

TMUs

96

8

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

5.200 GPixel/s

Pixel Rate

26.56 GPixel/s

13.00 GTexel/s

Texture Rate

79.68 GTexel/s

-

520.0 GFLOPS

FP32 (float)

2.550 TFLOPS

-

FP64 (double)

637.4 GFLOPS

Board Design

39W

TDP

375W

200 W

Suggested PSU

750 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 4x mini-DisplayPort 1.2

-

Power Connectors

2x 8-pin

Graphics Processor

Redwood

GPU Name

Antilles

Redwood PRO (215-0757004)

GPU Variant

Antilles XT (215-0807027)

TeraScale 2

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

2.64 billion

104 mm²

Die Size

389 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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