AMD Radeon HD 7870 GHz Edition vs ATI Radeon X1550

VS

AMD Radeon HD 7870 GHz Edition ATI Radeon X1550

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 256MB VRAM Radeon X1550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 GHz Edition 's Advantages

Released 5 years and 2 months late

Larger VRAM bandwidth (153.6GB/s vs 12.80GB/s)

1280 additional rendering cores

ATI Radeon X1550 's Advantages

Lower TDP (27W vs 175W)

Score

Radeon HD 7870 GHz Edition

VS

Radeon X1550

Graphics Card

Mar 2012

Release Date

Jan 2007

Southern Islands

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1200 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

-

20

Compute Units

-

1280

Shading Units

-

80

TMUs

4

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

2.200 GPixel/s

80.00 GTexel/s

Texture Rate

2.200 GTexel/s

-

FP16 (half)

-

2.560 TFLOPS

FP32 (float)

-

160.0 GFLOPS

FP64 (double)

-

Graphics Processor

Pitcairn

GPU Name

RV516

Pitcairn XT (215-0828047)

GPU Variant

-

GCN 1.0

Architecture

R500

TSMC

Foundry

UMC

28 nm

Process Size

80 nm

2.8 billion

Transistors

0.107 billion

212 mm²

Die Size

100 mm²

Board Design

175W

TDP

27W

450 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 Features

12 (11_1)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

3.0

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