ATI Radeon HD 3870 Mac Edition vs ATI FirePro V4900

VS

ATI Radeon HD 3870 Mac Edition

ATI FirePro V4900

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 1024MB VRAM FirePro V4900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 Mac Edition 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 64.00GB/s)

ATI FirePro V4900 's Advantages

Released 3 years and 5 months late

More VRAM (1024GB vs 512GB)

160 additional rendering cores

Lower TDP (75W vs 106W)

Score

Benchmark

FP32 (float)

Radeon HD 3870 Mac Edition

0.497 TFLOPS

FirePro V4900 +54%

0.768 TFLOPS

Radeon HD 3870 Mac Edition

VS

FirePro V4900

Graphics Card

Jun 2008

Release Date

Nov 2011

Radeon R600

Generation

FirePro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1126 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

1024MB

GDDR4

Memory Type

GDDR5

256bit

Memory Bus

128bit

72.06GB/s

Bandwidth

64.00GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

480

16

TMUs

24

16

ROPs

8

-

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

6.400 GPixel/s

12.43 GTexel/s

Texture Rate

19.20 GTexel/s

-

497.3 GFLOPS

FP32 (float)

768.0 GFLOPS

99.46 GFLOPS

FP64 (double)

-

Board Design

106W

TDP

75W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 2x DisplayPort 1.1

1x 6-pin

Power Connectors

None

Graphics Processor

RV670

GPU Name

Turks

RV670 XT (215-0708005)

GPU Variant

Turks XT GL

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.716 billion

192 mm²

Die Size

118 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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