AMD Radeon HD 6870 X2 vs ATI FirePro V8750

VS

AMD Radeon HD 6870 X2

ATI FirePro V8750

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 2GB VRAM FirePro V8750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 X2 's Advantages

Released 3 years late

Larger VRAM bandwidth (134.4GB/s vs 115.2GB/s)

320 additional rendering cores

ATI FirePro V8750 's Advantages

More VRAM (2GB vs 1024GB)

Lower TDP (151W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2 +68%

2.016 TFLOPS

FirePro V8750

1.2 TFLOPS

Radeon HD 6870 X2

VS

FirePro V8750

Graphics Card

Jul 2011

Release Date

Jul 2008

Northern Islands

Generation

FirePro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

115.2GB/s

Render Config

14

Compute Units

10

-

1120

Shading Units

800

56

TMUs

40

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

12.00 GPixel/s

50.40 GTexel/s

Texture Rate

30.00 GTexel/s

-

2.016 TFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Board Design

300W

TDP

151W

700 W

Suggested PSU

450 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

1x DVI 2x DisplayPort 1.0 1x S-Video

-

Power Connectors

2x 6-pin

Graphics Processor

Barts

GPU Name

RV770

Barts XT (215-0798000)

GPU Variant

RV770 XT (215-0669049)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.956 billion

255 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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