AMD Radeon R9 390 X2 vs AMD Radeon R7 250

VS

AMD Radeon R9 390 X2

AMD Radeon R7 250

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 1024MB VRAM Radeon R7 250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

Released 1 years and 11 months late

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (345.6GB/s vs 28.80GB/s)

2048 additional rendering cores

AMD Radeon R7 250 's Advantages

Lower TDP (55W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +614%

5.12 TFLOPS

Radeon R7 250

0.717 TFLOPS

Radeon R9 390 X2

VS

Radeon R7 250

Graphics Card

Sep 2015

Release Date

Oct 2013

Pirate Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

28.80GB/s

Render Config

40

Compute Units

8

-

2560

Shading Units

512

160

TMUs

32

64

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

11.20 GPixel/s

160.0 GTexel/s

Texture Rate

22.40 GTexel/s

-

5.120 TFLOPS

FP32 (float)

716.8 GFLOPS

640.0 GFLOPS

FP64 (double)

44.80 GFLOPS

Board Design

580W

TDP

55W

950 W

Suggested PSU

250 W

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

Outputs

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

4x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

Cape Verde

Grenada PRO (215-0880030)

GPU Variant

Cape Verde PRO

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

1.5 billion

438 mm²

Die Size

123 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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