ATI Radeon HD 3870 Mac Edition vs AMD Radeon Pro WX 3100

VS

ATI Radeon HD 3870 Mac Edition

AMD Radeon Pro WX 3100

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 4GB VRAM Radeon Pro WX 3100 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro WX 3100 's Advantages

Released 9 years late

Boost Clock1219MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 72.06GB/s)

192 additional rendering cores

Lower TDP (65W vs 106W)

Score

Benchmark

FP32 (float)

Radeon HD 3870 Mac Edition

0.497 TFLOPS

Radeon Pro WX 3100 +151%

1.248 TFLOPS

Radeon HD 3870 Mac Edition

VS

Radeon Pro WX 3100

Graphics Card

Jun 2008

Release Date

Jun 2017

Radeon R600

Generation

Radeon Pro Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

1219 MHz

1126 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

4GB

GDDR4

Memory Type

GDDR5

256bit

Memory Bus

128bit

72.06GB/s

Bandwidth

96.00GB/s

Render Config

4

Compute Units

8

-

320

Shading Units

512

16

TMUs

32

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

19.50 GPixel/s

12.43 GTexel/s

Texture Rate

39.01 GTexel/s

-

FP16 (half)

1248 GFLOPS

497.3 GFLOPS

FP32 (float)

1248 GFLOPS

99.46 GFLOPS

FP64 (double)

78.02 GFLOPS

Board Design

106W

TDP

65W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DisplayPort 1.4a 2x mini-DisplayPort 1.4a

1x 6-pin

Power Connectors

None

Graphics Processor

RV670

GPU Name

Lexa

RV670 XT (215-0708005)

GPU Variant

Lexa XT

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

55 nm

Process Size

14 nm

0.666 billion

Transistors

2.2 billion

192 mm²

Die Size

103 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.3

-

4.1

Shader Model

6.7

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