AMD Radeon HD 7970 vs AMD FireStream 9250

VS

AMD Radeon HD 7970

AMD FireStream 9250

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 1024MB VRAM FireStream 9250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Released 3 years and 6 months late

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 63.55GB/s)

1248 additional rendering cores

AMD FireStream 9250 's Advantages

Lower TDP (150W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +278%

3.789 TFLOPS

FireStream 9250

1 TFLOPS

Radeon HD 7970

VS

FireStream 9250

Graphics Card

Dec 2011

Release Date

Jun 2008

Southern Islands

Generation

FireStream

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

993 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

63.55GB/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

10.00 GPixel/s

118.4 GTexel/s

Texture Rate

25.00 GTexel/s

-

3.789 TFLOPS

FP32 (float)

1000 GFLOPS

947.2 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

250W

TDP

150W

600 W

Suggested PSU

450 W

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

Outputs

1x DVI

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

RV770

Tahiti XT (215-0821060)

GPU Variant

RV770 PRO

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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