ATI Radeon X550 XT vs AMD Radeon HD 7990

VS

ATI Radeon X550 XT

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 128MB VRAM Radeon X550 XT and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

Released 6 years and 3 months late

Boost Clock1000MHz

More VRAM (3GB vs 128GB)

Larger VRAM bandwidth (288.0GB/s vs 9.600GB/s)

2048 additional rendering cores

Score

Radeon X550 XT

VS

Radeon HD 7990

Graphics Card

Jan 2007

Release Date

Apr 2013

Radeon R300

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

300 MHz

Memory Clock

1500 MHz

Memory

128MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

384bit

9.600GB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

-

Shading Units

2048

4

TMUs

128

4

ROPs

32

-

L1 Cache

16 KB (per CU)

-

L2 Cache

768 KB

-

Theoretical Performance

1.600 GPixel/s

Pixel Rate

32.00 GPixel/s

1.600 GTexel/s

Texture Rate

128.0 GTexel/s

-

FP32 (float)

4.096 TFLOPS

-

FP64 (double)

1024 GFLOPS

Board Design

Unknown

TDP

375W

200 W

Suggested PSU

750 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

RV410

GPU Name

Malta

-

GPU Variant

Malta XT (215-0849026)

R400

Architecture

GCN 1.0

TSMC

Foundry

TSMC

110 nm

Process Size

28 nm

0.12 billion

Transistors

4.313 billion

156 mm²

Die Size

365 mm²

Graphics Features

9.0b (9_2)

DirectX

12 (11_1)

2.0

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

Shader Model

5.1

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