AMD Radeon HD 6870 vs AMD Radeon R5 340X OEM

VS

AMD Radeon HD 6870 AMD Radeon R5 340X OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 2GB VRAM Radeon R5 340X OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 16.00GB/s)

736 additional rendering cores

AMD Radeon R5 340X OEM 's Advantages

Released 4 years and 7 months late

More VRAM (2GB vs 1GB)

Lower TDP (65W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +191%

2.016 TFLOPS

Radeon R5 340X OEM

0.691 TFLOPS

Radeon HD 6870

VS

Radeon R5 340X OEM

Graphics Card

Oct 2010

Release Date

May 2015

Northern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

16.00GB/s

Render Config

-

SM Count

-

14

Compute Units

6

1120

Shading Units

384

56

TMUs

24

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

7.200 GPixel/s

50.40 GTexel/s

Texture Rate

21.60 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Graphics Processor

Barts

GPU Name

Oland

Barts XT (215-0798000)

GPU Variant

Oland XT (215-0837000)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

0.95 billion

255 mm²

Die Size

77 mm²

Board Design

151W

TDP

65W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x DisplayPort 1.2

2x 6-pin

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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