AMD Radeon R9 290X2 vs AMD Radeon HD 8870 OEM

VS

AMD Radeon R9 290X2

AMD Radeon HD 8870 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X2 and 2GB VRAM Radeon HD 8870 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 290X2 's Advantages

Released 1 years and 5 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (345.6GB/s vs 153.6GB/s)

1536 additional rendering cores

AMD Radeon HD 8870 OEM 's Advantages

Lower TDP (175W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 290X2 +120%

5.632 TFLOPS

Radeon HD 8870 OEM

2.56 TFLOPS

Radeon R9 290X2

VS

Radeon HD 8870 OEM

Graphics Card

Jun 2014

Release Date

Jan 2013

Volcanic Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

1200 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

256bit

345.6GB/s

Bandwidth

153.6GB/s

Render Config

44

Compute Units

20

-

2816

Shading Units

1280

176

TMUs

80

64

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

32.00 GPixel/s

176.0 GTexel/s

Texture Rate

80.00 GTexel/s

-

5.632 TFLOPS

FP32 (float)

2.560 TFLOPS

704.0 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

580W

TDP

175W

950 W

Suggested PSU

450 W

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

Outputs

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

4x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Hawaii

GPU Name

Pitcairn

Hawaii XT (215-0852000)

GPU Variant

Pitcairn XT (215-0828047)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

2.8 billion

438 mm²

Die Size

212 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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