AMD Radeon R9 295X2 vs AMD Radeon R7 340 OEM

VS

AMD Radeon R9 295X2

AMD Radeon R7 340 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 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 R9 295X2 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (320.0GB/s vs 64.00GB/s)

2432 additional rendering cores

AMD Radeon R7 340 OEM 's Advantages

Released 1 years and 1 months late

Boost Clock780MHz

Lower TDP (50W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2 +857%

5.733 TFLOPS

Radeon R7 340 OEM

0.599 TFLOPS

Radeon R9 295X2

VS

Radeon R7 340 OEM

Graphics Card

Apr 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

-

Base Clock

730 MHz

-

Boost Clock

780 MHz

1250 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

320.0GB/s

Bandwidth

64.00GB/s

Render Config

44

Compute Units

6

-

2816

Shading Units

384

176

TMUs

24

64

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

65.15 GPixel/s

Pixel Rate

6.240 GPixel/s

179.2 GTexel/s

Texture Rate

18.72 GTexel/s

-

5.733 TFLOPS

FP32 (float)

599.0 GFLOPS

716.7 GFLOPS

FP64 (double)

37.44 GFLOPS

Board Design

500W

TDP

50W

900 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Processor

Vesuvius

GPU Name

Oland

Vesuvius XT (215-0852022)

GPU Variant

-

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

0.95 billion

438 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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