AMD Radeon R9 285X vs AMD Radeon R5 340 OEM

VS

AMD Radeon R9 285X

AMD Radeon R5 340 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 1024MB VRAM Radeon R5 340 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285X 's Advantages

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 36.80GB/s)

1664 additional rendering cores

AMD Radeon R5 340 OEM 's Advantages

Boost Clock780MHz

Lower TDP (65W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 285X +585%

4.104 TFLOPS

Radeon R5 340 OEM

0.599 TFLOPS

Radeon R9 285X

VS

Radeon R5 340 OEM

Graphics Card

Unknown

Release Date

May 2015

Volcanic Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

730 MHz

-

Boost Clock

780 MHz

1375 MHz

Memory Clock

1150 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

36.80GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

384

128

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

32.06 GPixel/s

Pixel Rate

6.240 GPixel/s

128.3 GTexel/s

Texture Rate

18.72 GTexel/s

-

4.104 TFLOPS

FP32 (float)

599.0 GFLOPS

-

FP64 (double)

37.44 GFLOPS

Board Design

200W

TDP

65W

550 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tonga

GPU Name

Oland

Tonga XT (215-0851313)

GPU Variant

Oland PRO (215-0837015)

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

0.95 billion

366 mm²

Die Size

77 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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