AMD Radeon HD 6390 vs ATI FirePro V7900

VS

AMD Radeon HD 6390

ATI FirePro V7900

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 2GB VRAM FirePro V7900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 150W)

ATI FirePro V7900 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 16.00GB/s)

960 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

FirePro V7900 +427%

1.856 TFLOPS

Radeon HD 6390

VS

FirePro V7900

Graphics Card

Jul 2011

Release Date

May 2011

Northern Islands

Generation

FirePro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

16.00GB/s

Bandwidth

160.0GB/s

Render Config

4

Compute Units

20

-

320

Shading Units

1280

16

TMUs

80

8

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

23.20 GPixel/s

8.800 GTexel/s

Texture Rate

58.00 GTexel/s

-

352.0 GFLOPS

FP32 (float)

1.856 TFLOPS

-

FP64 (double)

464.0 GFLOPS

Board Design

39W

TDP

150W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

4x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

Redwood

GPU Name

Cayman

Redwood LE

GPU Variant

Cayman PRO GL

TeraScale 2

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

2.64 billion

104 mm²

Die Size

389 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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