AMD Radeon HD 7950 vs ATI Radeon X550 XT

VS

AMD Radeon HD 7950

ATI Radeon X550 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 128MB VRAM Radeon X550 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 's Advantages

Released 5 years late

More VRAM (3GB vs 128GB)

Larger VRAM bandwidth (240.0GB/s vs 9.600GB/s)

1792 additional rendering cores

Score

Radeon HD 7950

VS

Radeon X550 XT

Graphics Card

Jan 2012

Release Date

Jan 2007

Southern Islands

Generation

Radeon R300

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

300 MHz

Memory

3GB

Memory Size

128MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

240.0GB/s

Bandwidth

9.600GB/s

Render Config

28

Compute Units

-

1792

Shading Units

-

112

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

1.600 GPixel/s

89.60 GTexel/s

Texture Rate

1.600 GTexel/s

-

2.867 TFLOPS

FP32 (float)

-

716.8 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

Unknown

550 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

RV410

Tahiti PRO (215-0821056)

GPU Variant

-

GCN 1.0

Architecture

R400

TSMC

Foundry

TSMC

28 nm

Process Size

110 nm

4.313 billion

Transistors

0.12 billion

352 mm²

Die Size

156 mm²

Graphics Features

12 (11_1)

DirectX

9.0b (9_2)

4.6

OpenGL

2.0

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

-

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