AMD Radeon R9 290X2 vs AMD Radeon HD 6870

VS

AMD Radeon R9 290X2

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X2 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 290X2 's Advantages

Released 3 years and 8 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (345.6GB/s vs 134.4GB/s)

1696 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 290X2 +179%

5.632 TFLOPS

Radeon HD 6870

2.016 TFLOPS

Radeon R9 290X2

VS

Radeon HD 6870

Graphics Card

Jun 2014

Release Date

Oct 2010

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

256bit

345.6GB/s

Bandwidth

134.4GB/s

Render Config

44

Compute Units

14

-

2816

Shading Units

1120

176

TMUs

56

64

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

28.80 GPixel/s

176.0 GTexel/s

Texture Rate

50.40 GTexel/s

-

5.632 TFLOPS

FP32 (float)

2.016 TFLOPS

704.0 GFLOPS

FP64 (double)

-

Board Design

580W

TDP

151W

950 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

4x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Hawaii

GPU Name

Barts

Hawaii XT (215-0852000)

GPU Variant

Barts XT (215-0798000)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

6.2 billion

Transistors

1.7 billion

438 mm²

Die Size

255 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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