AMD Radeon HD 6390 vs ATI Radeon X1550

VS

AMD Radeon HD 6390

ATI Radeon X1550

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 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 6390 's Advantages

Released 4 years and 6 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (16.00GB/s vs 12.80GB/s)

320 additional rendering cores

ATI Radeon X1550 's Advantages

Lower TDP (27W vs 39W)

Score

Radeon HD 6390

VS

Radeon X1550

Graphics Card

Jul 2011

Release Date

Jan 2007

Northern Islands

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

500 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

256MB

DDR2

Memory Type

DDR2

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

12.80GB/s

Render Config

4

Compute Units

-

320

Shading Units

-

16

TMUs

4

8

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

2.200 GPixel/s

8.800 GTexel/s

Texture Rate

2.200 GTexel/s

-

352.0 GFLOPS

FP32 (float)

-

Board Design

39W

TDP

27W

200 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

Redwood

GPU Name

RV516

Redwood LE

GPU Variant

-

TeraScale 2

Architecture

R500

TSMC

Foundry

UMC

40 nm

Process Size

80 nm

0.627 billion

Transistors

0.107 billion

104 mm²

Die Size

100 mm²

Graphics Features

11.2 (11_0)

DirectX

9.0c (9_3)

4.4

OpenGL

2.1

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

3.0

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