ATI FirePro V7900 SDI vs ATI Radeon HD 3870 X2

VS

ATI FirePro V7900 SDI

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 2GB VRAM FirePro V7900 SDI and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI FirePro V7900 SDI 's Advantages

Released 3 years and 4 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 57.66GB/s)

960 additional rendering cores

Lower TDP (150W vs 165W)

Score

Benchmark

FP32 (float)

FirePro V7900 SDI +251%

1.856 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

FirePro V7900 SDI

VS

Radeon HD 3870 X2

Graphics Card

May 2011

Release Date

Jan 2008

FirePro

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

901 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

57.66GB/s

Render Config

20

Compute Units

4

-

1280

Shading Units

320

80

TMUs

16

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

13.20 GPixel/s

58.00 GTexel/s

Texture Rate

13.20 GTexel/s

-

1.856 TFLOPS

FP32 (float)

528.0 GFLOPS

464.0 GFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

150W

TDP

165W

450 W

Suggested PSU

450 W

4x SDI

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Cayman

GPU Name

R680

Cayman PRO GL

GPU Variant

R680 XT (215-0708017)

TeraScale 3

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.64 billion

Transistors

0.666 billion

389 mm²

Die Size

192 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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