ATI Radeon X1550 vs AMD Radeon HD 7970

VS

ATI Radeon X1550

AMD Radeon HD 7970

We compared two Desktop platform GPUs: 256MB VRAM Radeon X1550 and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon X1550 's Advantages

Lower TDP (27W vs 250W)

AMD Radeon HD 7970 's Advantages

Released 4 years and 11 months late

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (264.0GB/s vs 12.80GB/s)

2048 additional rendering cores

Score

Radeon X1550

VS

Radeon HD 7970

Graphics Card

Jan 2007

Release Date

Dec 2011

Radeon R500 PCIe

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

400 MHz

Memory Clock

1375 MHz

Memory

256MB

Memory Size

3GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

384bit

12.80GB/s

Bandwidth

264.0GB/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

2.200 GPixel/s

Pixel Rate

29.60 GPixel/s

2.200 GTexel/s

Texture Rate

118.4 GTexel/s

-

FP32 (float)

3.789 TFLOPS

-

FP64 (double)

947.2 GFLOPS

Board Design

27W

TDP

250W

200 W

Suggested PSU

600 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV516

GPU Name

Tahiti

-

GPU Variant

Tahiti XT (215-0821060)

R500

Architecture

GCN 1.0

UMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.107 billion

Transistors

4.313 billion

100 mm²

Die Size

352 mm²

Graphics Features

9.0c (9_3)

DirectX

12 (11_1)

2.1

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

3.0

Shader Model

5.1

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