ATI FirePro V8800 vs ATI Radeon HD 4855

VS

ATI FirePro V8800

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 2GB VRAM FirePro V8800 and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI FirePro V8800 's Advantages

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (147.2GB/s vs 115.2GB/s)

960 additional rendering cores

ATI Radeon HD 4855 's Advantages

Lower TDP (110W vs 208W)

Score

Benchmark

FP32 (float)

FirePro V8800 +258%

2.64 TFLOPS

Radeon HD 4855

0.736 TFLOPS

FirePro V8800

VS

Radeon HD 4855

Graphics Card

Apr 2010

Release Date

Jan 2010

FirePro

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1150 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

147.2GB/s

Bandwidth

115.2GB/s

Render Config

20

Compute Units

8

-

1600

Shading Units

640

80

TMUs

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

26.40 GPixel/s

Pixel Rate

9.200 GPixel/s

66.00 GTexel/s

Texture Rate

18.40 GTexel/s

-

2.640 TFLOPS

FP32 (float)

736.0 GFLOPS

528.0 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

208W

TDP

110W

550 W

Suggested PSU

300 W

4x DisplayPort 1.1 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Cypress

GPU Name

RV770

Cypress XT GL

GPU Variant

RV770 PRO (215-0669065)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.154 billion

Transistors

0.956 billion

334 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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