AMD Radeon R9 390 vs AMD Radeon R7 250E

VS

AMD Radeon R9 390

AMD Radeon R7 250E

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

Main Differences

AMD Radeon R9 390 's Advantages

Released 1 years and 6 months late

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 72.00GB/s)

2048 additional rendering cores

AMD Radeon R7 250E 's Advantages

Lower TDP (55W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390 +525%

5.12 TFLOPS

Radeon R7 250E

0.819 TFLOPS

Radeon R9 390

VS

Radeon R7 250E

Graphics Card

Jun 2015

Release Date

Dec 2013

Pirate Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

1125 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

72.00GB/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

12.80 GPixel/s

160.0 GTexel/s

Texture Rate

25.60 GTexel/s

-

5.120 TFLOPS

FP32 (float)

819.2 GFLOPS

640.0 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

275W

TDP

55W

600 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

1x 6-pin + 1x 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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