AMD Radeon R5 340X OEM vs AMD Radeon R9 280X

VS

AMD Radeon R5 340X OEM AMD Radeon R9 280X

We compared two Desktop platform GPUs: 2GB VRAM Radeon R5 340X OEM and 3GB VRAM Radeon R9 280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 340X OEM 's Advantages

Released 1 years and 7 months late

Lower TDP (65W vs 250W)

AMD Radeon R9 280X 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 16.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 340X OEM

0.691 TFLOPS

Radeon R9 280X +492%

4.096 TFLOPS

Radeon R5 340X OEM

VS

Radeon R9 280X

Graphics Card

May 2015

Release Date

Oct 2013

Pirate Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

1000 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

3GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

384bit

16.00GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

-

6

Compute Units

32

384

Shading Units

2048

24

TMUs

128

8

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

768 KB

Theoretical Performance

7.200 GPixel/s

Pixel Rate

32.00 GPixel/s

21.60 GTexel/s

Texture Rate

128.0 GTexel/s

-

FP16 (half)

-

691.2 GFLOPS

FP32 (float)

4.096 TFLOPS

43.20 GFLOPS

FP64 (double)

1024 GFLOPS

Graphics Processor

Oland

GPU Name

Tahiti

Oland XT (215-0837000)

GPU Variant

Tahiti XTL (215-0821065)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

4.313 billion

77 mm²

Die Size

352 mm²

Board Design

65W

TDP

250W

250 W

Suggested PSU

600 W

1x DVI 1x DisplayPort 1.2

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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