AMD Radeon R9 295X2 vs AMD Radeon R9 270

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 2GB VRAM Radeon R9 270 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 179.2GB/s)

1536 additional rendering cores

AMD Radeon R9 270 's Advantages

Boost Clock925MHz

Lower TDP (150W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2 +142%

5.733 TFLOPS

Radeon R9 270

2.368 TFLOPS

Radeon R9 295X2

VS

Radeon R9 270

Graphics Card

Apr 2014

Release Date

Nov 2013

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

1250 MHz

Memory Clock

1400 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

256bit

320.0GB/s

Bandwidth

179.2GB/s

Render Config

-

SM Count

-

44

Compute Units

20

2816

Shading Units

1280

176

TMUs

80

64

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

Theoretical Performance

65.15 GPixel/s

Pixel Rate

29.60 GPixel/s

179.2 GTexel/s

Texture Rate

74.00 GTexel/s

-

FP16 (half)

-

5.733 TFLOPS

FP32 (float)

2.368 TFLOPS

716.7 GFLOPS

FP64 (double)

148.0 GFLOPS

Graphics Processor

Vesuvius

GPU Name

Curacao

Vesuvius XT (215-0852022)

GPU Variant

Curacao PRO (215-0848000)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

2.8 billion

438 mm²

Die Size

212 mm²

Board Design

500W

TDP

150W

900 W

Suggested PSU

450 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

5.1

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