AMD Radeon HD 7990 vs AMD FireStream 9250

VS

AMD Radeon HD 7990

AMD FireStream 9250

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 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 7990 's Advantages

Released 4 years and 10 months late

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 63.55GB/s)

1248 additional rendering cores

AMD FireStream 9250 's Advantages

Lower TDP (150W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +309%

4.096 TFLOPS

FireStream 9250

1 TFLOPS

Radeon HD 7990

VS

FireStream 9250

Graphics Card

Apr 2013

Release Date

Jun 2008

Southern Islands

Generation

FireStream

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

993 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

256bit

288.0GB/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

32.00 GPixel/s

Pixel Rate

10.00 GPixel/s

128.0 GTexel/s

Texture Rate

25.00 GTexel/s

-

4.096 TFLOPS

FP32 (float)

1000 GFLOPS

1024 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

375W

TDP

150W

750 W

Suggested PSU

450 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Malta

GPU Name

RV770

Malta XT (215-0849026)

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

365 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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