AMD Radeon HD 6870 vs AMD Radeon R9 290X2

VS

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

Main Differences

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 580W)

AMD Radeon R9 290X2 's Advantages

Released 3 years and 8 months late

More VRAM (4GB vs 1GB)

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

1696 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870

2.016 TFLOPS

Radeon R9 290X2 +179%

5.632 TFLOPS

Radeon HD 6870

VS

Radeon R9 290X2

Graphics Card

Oct 2010

Release Date

Jun 2014

Northern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

1350 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

512bit

134.4GB/s

Bandwidth

345.6GB/s

Render Config

-

SM Count

-

14

Compute Units

44

1120

Shading Units

2816

56

TMUs

176

32

ROPs

64

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

64.00 GPixel/s

50.40 GTexel/s

Texture Rate

176.0 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

5.632 TFLOPS

-

FP64 (double)

704.0 GFLOPS

Graphics Processor

Barts

GPU Name

Hawaii

Barts XT (215-0798000)

GPU Variant

Hawaii XT (215-0852000)

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

6.2 billion

255 mm²

Die Size

438 mm²

Board Design

151W

TDP

580W

450 W

Suggested PSU

950 W

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

Outputs

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

2x 6-pin

Power Connectors

4x 8-pin

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

6.3

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