AMD Radeon R9 270X vs AMD Radeon R9 295X2

VS

AMD Radeon R9 270X

AMD Radeon R9 295X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 4GB VRAM Radeon R9 295X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270X 's Advantages

Boost Clock1050MHz

Lower TDP (180W vs 500W)

AMD Radeon R9 295X2 's Advantages

Released 6 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (320.0GB/s vs 179.2GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 270X

2.688 TFLOPS

Radeon R9 295X2 +113%

5.733 TFLOPS

Radeon R9 270X

VS

Radeon R9 295X2

Graphics Card

Oct 2013

Release Date

Apr 2014

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1400 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

512bit

179.2GB/s

Bandwidth

320.0GB/s

Render Config

20

Compute Units

44

-

1280

Shading Units

2816

80

TMUs

176

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

65.15 GPixel/s

84.00 GTexel/s

Texture Rate

179.2 GTexel/s

-

2.688 TFLOPS

FP32 (float)

5.733 TFLOPS

168.0 GFLOPS

FP64 (double)

716.7 GFLOPS

Board Design

180W

TDP

500W

450 W

Suggested PSU

900 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Curacao

GPU Name

Vesuvius

Curacao XT (215-0848004)

GPU Variant

Vesuvius XT (215-0852022)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

6.2 billion

212 mm²

Die Size

438 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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