ATI Radeon HD 4870 Mac Edition vs AMD FireStream 9350

VS

ATI Radeon HD 4870 Mac Edition

AMD FireStream 9350

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 2GB VRAM FireStream 9350 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD FireStream 9350 's Advantages

Released 1 years and 5 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 108.8GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition

1.2 TFLOPS

FireStream 9350 +68%

2.016 TFLOPS

Radeon HD 4870 Mac Edition

VS

FireStream 9350

Graphics Card

Jan 2009

Release Date

Jun 2010

Radeon R700

Generation

FireStream

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

850 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

108.8GB/s

Bandwidth

128.0GB/s

Render Config

10

Compute Units

18

-

800

Shading Units

1440

40

TMUs

72

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

22.40 GPixel/s

30.00 GTexel/s

Texture Rate

50.40 GTexel/s

-

1200 GFLOPS

FP32 (float)

2.016 TFLOPS

240.0 GFLOPS

FP64 (double)

403.2 GFLOPS

Board Design

150W

TDP

150W

450 W

Suggested PSU

450 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

1x DisplayPort 1.1

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV770

GPU Name

Cypress

RV770 XT Mac (215-0669080)

GPU Variant

Cypress PRO GL

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

2.154 billion

256 mm²

Die Size

334 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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