AMD Radeon R7 250 vs AMD Radeon R9 390X

VS

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

Main Differences

AMD Radeon R7 250 's Advantages

Lower TDP (55W vs 275W)

AMD Radeon R9 390X 's Advantages

Released 1 years and 8 months late

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (384.0GB/s vs 28.80GB/s)

2304 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 250

0.717 TFLOPS

Radeon R9 390X +724%

5.914 TFLOPS

Radeon R7 250

VS

Radeon R9 390X

Graphics Card

Oct 2013

Release Date

Jun 2015

Volcanic Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

8GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

512bit

28.80GB/s

Bandwidth

384.0GB/s

Render Config

-

SM Count

-

8

Compute Units

44

512

Shading Units

2816

32

TMUs

176

16

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

Theoretical Performance

11.20 GPixel/s

Pixel Rate

67.20 GPixel/s

22.40 GTexel/s

Texture Rate

184.8 GTexel/s

-

FP16 (half)

-

716.8 GFLOPS

FP32 (float)

5.914 TFLOPS

44.80 GFLOPS

FP64 (double)

739.2 GFLOPS

Graphics Processor

Cape Verde

GPU Name

Grenada

Cape Verde PRO

GPU Variant

Grenada XT (215-0880004)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

6.2 billion

123 mm²

Die Size

438 mm²

Board Design

55W

TDP

275W

250 W

Suggested PSU

600 W

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

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

6.3

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