AMD Radeon HD 6850 X2 vs AMD Radeon R7 340 OEM

VS

AMD Radeon HD 6850 X2

AMD Radeon R7 340 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 2GB VRAM Radeon R7 340 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 64.00GB/s)

576 additional rendering cores

AMD Radeon R7 340 OEM 's Advantages

Released 3 years and 8 months late

Boost Clock780MHz

Lower TDP (50W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2 +156%

1.536 TFLOPS

Radeon R7 340 OEM

0.599 TFLOPS

Radeon HD 6850 X2

VS

Radeon R7 340 OEM

Graphics Card

Sep 2011

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

730 MHz

-

Boost Clock

780 MHz

1050 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

64.00GB/s

Render Config

12

Compute Units

6

-

960

Shading Units

384

48

TMUs

24

32

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

6.240 GPixel/s

38.40 GTexel/s

Texture Rate

18.72 GTexel/s

-

1.536 TFLOPS

FP32 (float)

599.0 GFLOPS

-

FP64 (double)

37.44 GFLOPS

Board Design

254W

TDP

50W

600 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

Oland

Barts PRO (215-0798006)

GPU Variant

-

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

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

-

5.0

Shader Model

5.1

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