AMD Radeon R9 295X2 vs AMD Radeon RX 580

VS

AMD Radeon R9 295X2

AMD Radeon RX 580

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 8GB VRAM Radeon RX 580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 295X2 's Advantages

Larger VRAM bandwidth (320.0GB/s vs 256.0GB/s)

512 additional rendering cores

AMD Radeon RX 580 's Advantages

Released 3 years late

Boost Clock1340MHz

More VRAM (8GB vs 4GB)

Lower TDP (185W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2

5.733 TFLOPS

Radeon RX 580 +7%

6.175 TFLOPS

Radeon R9 295X2

VS

Radeon RX 580

Graphics Card

Apr 2014

Release Date

Apr 2017

Volcanic Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1257 MHz

-

Boost Clock

1340 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

256bit

320.0GB/s

Bandwidth

256.0GB/s

Render Config

44

Compute Units

36

-

2816

Shading Units

2304

176

TMUs

144

64

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

2 MB

-

Theoretical Performance

65.15 GPixel/s

Pixel Rate

42.88 GPixel/s

179.2 GTexel/s

Texture Rate

193.0 GTexel/s

-

FP16 (half)

6.175 TFLOPS

5.733 TFLOPS

FP32 (float)

6.175 TFLOPS

716.7 GFLOPS

FP64 (double)

385.9 GFLOPS

Board Design

500W

TDP

185W

900 W

Suggested PSU

450 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Vesuvius

GPU Name

Polaris 20

Vesuvius XT (215-0852022)

GPU Variant

Polaris 20 XTX (215-0910038)

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

6.2 billion

Transistors

5.7 billion

438 mm²

Die Size

232 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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