AMD Radeon R7 265X OEM vs AMD Radeon R7 340 OEM

VS

AMD Radeon R7 265X OEM

AMD Radeon R7 340 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265X OEM 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 R7 265X OEM 's Advantages

Boost Clock has increased by 19% (925MHz vs 780MHz)

Larger VRAM bandwidth (179.2GB/s vs 64.00GB/s)

896 additional rendering cores

AMD Radeon R7 340 OEM 's Advantages

Released 9 months late

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R7 265X OEM +295%

2.368 TFLOPS

Radeon R7 340 OEM

0.599 TFLOPS

Radeon R7 265X OEM

VS

Radeon R7 340 OEM

Graphics Card

Aug 2014

Release Date

May 2015

Volcanic Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

730 MHz

925 MHz

Boost Clock

780 MHz

1400 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

179.2GB/s

Bandwidth

64.00GB/s

Render Config

20

Compute Units

6

-

1280

Shading Units

384

80

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

6.240 GPixel/s

74.00 GTexel/s

Texture Rate

18.72 GTexel/s

-

2.368 TFLOPS

FP32 (float)

599.0 GFLOPS

148.0 GFLOPS

FP64 (double)

37.44 GFLOPS

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Curacao

GPU Name

Oland

Curacao PRO (215-0848000)

GPU Variant

-

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

0.95 billion

212 mm²

Die Size

77 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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