AMD Radeon HD 6990 vs ATI Radeon X550 XTX

VS

AMD Radeon HD 6990

ATI Radeon X550 XTX

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 128MB VRAM Radeon X550 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

Released 4 years and 2 months late

More VRAM (2GB vs 128GB)

Larger VRAM bandwidth (160.0GB/s vs 4.800GB/s)

1536 additional rendering cores

Score

Radeon HD 6990

VS

Radeon X550 XTX

Graphics Card

Mar 2011

Release Date

Jan 2007

Northern Islands

Generation

Radeon R300

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

300 MHz

Memory

2GB

Memory Size

128MB

GDDR5

Memory Type

DDR

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

4.800GB/s

Render Config

24

Compute Units

-

1536

Shading Units

-

96

TMUs

8

32

ROPs

8

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

26.56 GPixel/s

Pixel Rate

3.200 GPixel/s

79.68 GTexel/s

Texture Rate

3.200 GTexel/s

-

2.550 TFLOPS

FP32 (float)

-

637.4 GFLOPS

FP64 (double)

-

Board Design

375W

TDP

Unknown

750 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Antilles

GPU Name

RV410

Antilles XT (215-0807027)

GPU Variant

-

TeraScale 3

Architecture

R400

TSMC

Foundry

TSMC

40 nm

Process Size

110 nm

2.64 billion

Transistors

0.12 billion

389 mm²

Die Size

156 mm²

Graphics Features

11.2 (11_0)

DirectX

9.0b (9_2)

4.4

OpenGL

2.0

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

-

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