AMD Radeon R9 285 vs AMD Radeon R9 295X2

VS

AMD Radeon R9 285

AMD Radeon R9 295X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 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 285 's Advantages

Lower TDP (190W vs 500W)

AMD Radeon R9 295X2 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (320.0GB/s vs 176.0GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 285

3.29 TFLOPS

Radeon R9 295X2 +74%

5.733 TFLOPS

Radeon R9 285

VS

Radeon R9 295X2

Graphics Card

Sep 2014

Release Date

Apr 2014

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

512bit

176.0GB/s

Bandwidth

320.0GB/s

Render Config

28

Compute Units

44

-

1792

Shading Units

2816

112

TMUs

176

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

29.38 GPixel/s

Pixel Rate

65.15 GPixel/s

102.8 GTexel/s

Texture Rate

179.2 GTexel/s

3.290 TFLOPS

FP16 (half)

-

3.290 TFLOPS

FP32 (float)

5.733 TFLOPS

205.6 GFLOPS

FP64 (double)

716.7 GFLOPS

Board Design

190W

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

Tonga

GPU Name

Vesuvius

Tonga PRO (215-0851128)

GPU Variant

Vesuvius XT (215-0852022)

GCN 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

6.2 billion

366 mm²

Die Size

438 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2.170

Vulkan

1.2

-

6.5

Shader Model

6.3

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