AMD Radeon R7 340 OEM vs AMD Radeon RX 580X

VS

AMD Radeon R7 340 OEM

AMD Radeon RX 580X

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 340 OEM and 8GB VRAM Radeon RX 580X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 340 OEM 's Advantages

Lower TDP (50W vs 185W)

AMD Radeon RX 580X 's Advantages

Released 2 years and 11 months late

Boost Clock has increased by 72% (1340MHz vs 780MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 64.00GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 340 OEM

0.599 TFLOPS

Radeon RX 580X +930%

6.175 TFLOPS

Radeon R7 340 OEM

VS

Radeon RX 580X

Graphics Card

May 2015

Release Date

Apr 2018

Pirate Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

730 MHz

Base Clock

1257 MHz

780 MHz

Boost Clock

1340 MHz

1000 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

256.0GB/s

Render Config

6

Compute Units

36

-

384

Shading Units

2304

24

TMUs

144

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

6.240 GPixel/s

Pixel Rate

42.88 GPixel/s

18.72 GTexel/s

Texture Rate

193.0 GTexel/s

-

FP16 (half)

6.175 TFLOPS

599.0 GFLOPS

FP32 (float)

6.175 TFLOPS

37.44 GFLOPS

FP64 (double)

385.9 GFLOPS

Board Design

50W

TDP

185W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Oland

GPU Name

Polaris 20

-

GPU Variant

Polaris 20 XTX (215-0910038)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

0.95 billion

Transistors

5.7 billion

77 mm²

Die Size

232 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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