ATI Radeon HD 4850 vs ATI Radeon X1550

VS

ATI Radeon HD 4850

ATI Radeon X1550

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4850 and 256MB VRAM Radeon X1550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4850 's Advantages

Released 1 years and 5 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (63.55GB/s vs 12.80GB/s)

800 additional rendering cores

ATI Radeon X1550 's Advantages

Lower TDP (27W vs 110W)

Score

Radeon HD 4850

VS

Radeon X1550

Graphics Card

Jun 2008

Release Date

Jan 2007

Radeon R700

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

993 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR3

Memory Type

DDR2

256bit

Memory Bus

128bit

63.55GB/s

Bandwidth

12.80GB/s

Render Config

10

Compute Units

-

800

Shading Units

-

40

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

10.00 GPixel/s

Pixel Rate

2.200 GPixel/s

25.00 GTexel/s

Texture Rate

2.200 GTexel/s

-

1000 GFLOPS

FP32 (float)

-

200.0 GFLOPS

FP64 (double)

-

Board Design

110W

TDP

27W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

RV770

GPU Name

RV516

RV770 PRO (215-0669065)

GPU Variant

-

TeraScale

Architecture

R500

TSMC

Foundry

UMC

55 nm

Process Size

80 nm

0.956 billion

Transistors

0.107 billion

256 mm²

Die Size

100 mm²

Graphics Features

10.1 (10_1)

DirectX

9.0c (9_3)

3.3

OpenGL

2.1

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

3.0

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