AMD Radeon HD 7970 X2 vs AMD FireStream 9270

VS

AMD Radeon HD 7970 X2

AMD FireStream 9270

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 2GB VRAM FireStream 9270 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 X2 's Advantages

Released 3 years and 9 months late

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 115.2GB/s)

1248 additional rendering cores

AMD FireStream 9270 's Advantages

Lower TDP (160W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +215%

3.789 TFLOPS

FireStream 9270

1.2 TFLOPS

Radeon HD 7970 X2

VS

FireStream 9270

Graphics Card

Aug 2012

Release Date

Nov 2008

Southern Islands

Generation

FireStream

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

115.2GB/s

Render Config

32

Compute Units

10

-

2048

Shading Units

800

128

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

12.00 GPixel/s

118.4 GTexel/s

Texture Rate

30.00 GTexel/s

-

3.789 TFLOPS

FP32 (float)

1200 GFLOPS

947.2 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

500W

TDP

160W

900 W

Suggested PSU

450 W

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

Outputs

1x DVI

3x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

New Zealand

GPU Name

RV770

-

GPU Variant

RV770 XT

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.956 billion

352 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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