AMD Radeon HD 7870 GHz Edition vs ATI FirePro V7770

VS

AMD Radeon HD 7870 GHz Edition

ATI FirePro V7770

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 1024MB VRAM FirePro V7770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 GHz Edition 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 33.60GB/s)

480 additional rendering cores

ATI FirePro V7770 's Advantages

Lower TDP (76W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 GHz Edition +156%

2.56 TFLOPS

FirePro V7770

1 TFLOPS

Radeon HD 7870 GHz Edition

VS

FirePro V7770

Graphics Card

Mar 2012

Release Date

Jan 2012

Southern Islands

Generation

FirePro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR4

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

33.60GB/s

Render Config

20

Compute Units

10

-

1280

Shading Units

800

80

TMUs

40

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

5.000 GPixel/s

80.00 GTexel/s

Texture Rate

25.00 GTexel/s

-

2.560 TFLOPS

FP32 (float)

1000 GFLOPS

160.0 GFLOPS

FP64 (double)

-

Board Design

175W

TDP

76W

450 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Pitcairn

GPU Name

RV770

Pitcairn XT (215-0828047)

GPU Variant

RV770 XT (215-0669049)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.956 billion

212 mm²

Die Size

256 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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