ATI FireGL V8600 vs ATI Radeon HD 4855

VS

ATI FireGL V8600

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 1024MB VRAM FireGL V8600 and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI FireGL V8600 's Advantages

More VRAM (1024GB vs 512GB)

ATI Radeon HD 4855 's Advantages

Released 2 years and 8 months late

Larger VRAM bandwidth (115.2GB/s vs 111.1GB/s)

320 additional rendering cores

Lower TDP (110W vs 159W)

Score

Benchmark

FP32 (float)

FireGL V8600

0.44 TFLOPS

Radeon HD 4855 +67%

0.736 TFLOPS

FireGL V8600

VS

Radeon HD 4855

Graphics Card

May 2007

Release Date

Jan 2010

FireGL

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

868 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

512MB

GDDR4

Memory Type

GDDR5

512bit

Memory Bus

256bit

111.1GB/s

Bandwidth

115.2GB/s

Render Config

4

Compute Units

8

-

320

Shading Units

640

16

TMUs

32

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.01 GPixel/s

Pixel Rate

9.200 GPixel/s

11.01 GTexel/s

Texture Rate

18.40 GTexel/s

-

440.3 GFLOPS

FP32 (float)

736.0 GFLOPS

-

FP64 (double)

147.2 GFLOPS

Board Design

159W

TDP

110W

450 W

Suggested PSU

300 W

1x DVI 1x DisplayPort 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

R600

GPU Name

RV770

R600 V8600

GPU Variant

RV770 PRO (215-0669065)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

80 nm

Process Size

55 nm

0.72 billion

Transistors

0.956 billion

420 mm²

Die Size

256 mm²

Graphics Features

10.0 (10_0)

DirectX

10.1 (10_1)

3.3 (full) 4.0 (partial)

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.0

Shader Model

4.1

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