ATI FirePro V7900 vs AMD Radeon HD 6850 X2

VS

ATI FirePro V7900

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 2GB VRAM FirePro V7900 and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI FirePro V7900 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 134.4GB/s)

320 additional rendering cores

Lower TDP (150W vs 254W)

Score

Benchmark

FP32 (float)

FirePro V7900 +20%

1.856 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

FirePro V7900

VS

Radeon HD 6850 X2

Graphics Card

May 2011

Release Date

Sep 2011

FirePro

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

134.4GB/s

Render Config

20

Compute Units

12

-

1280

Shading Units

960

80

TMUs

48

32

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

25.60 GPixel/s

58.00 GTexel/s

Texture Rate

38.40 GTexel/s

-

1.856 TFLOPS

FP32 (float)

1.536 TFLOPS

464.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

254W

450 W

Suggested PSU

600 W

4x DisplayPort 1.2

Outputs

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

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Cayman

GPU Name

Barts

Cayman PRO GL

GPU Variant

Barts PRO (215-0798006)

TeraScale 3

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

1.7 billion

389 mm²

Die Size

255 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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