ATI FireMV 2260 vs ATI Radeon HD 4855

VS

ATI FireMV 2260

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 256MB VRAM FireMV 2260 and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI FireMV 2260 's Advantages

Lower TDP (15W vs 110W)

ATI Radeon HD 4855 's Advantages

Released 2 years late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 8.000GB/s)

600 additional rendering cores

Score

Benchmark

FP32 (float)

FireMV 2260

0.04 TFLOPS

Radeon HD 4855 +1740%

0.736 TFLOPS

FireMV 2260

VS

Radeon HD 4855

Graphics Card

Jan 2008

Release Date

Jan 2010

FireMV Multi-View

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

512MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.000GB/s

Bandwidth

115.2GB/s

Render Config

2

Compute Units

8

-

40

Shading Units

640

4

TMUs

32

4

ROPs

16

-

L1 Cache

16 KB (per CU)

-

L2 Cache

256 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

9.200 GPixel/s

2.000 GTexel/s

Texture Rate

18.40 GTexel/s

-

40.00 GFLOPS

FP32 (float)

736.0 GFLOPS

-

FP64 (double)

147.2 GFLOPS

Board Design

15W

TDP

110W

200 W

Suggested PSU

300 W

4x mini-DisplayPort

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

1x 6-pin

Graphics Processor

RV620

GPU Name

RV770

-

GPU Variant

RV770 PRO (215-0669065)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.181 billion

Transistors

0.956 billion

67 mm²

Die Size

256 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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