AMD Radeon R7 250 vs AMD Radeon R9 285

VS

AMD Radeon R7 250

AMD Radeon R9 285

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250 and 2GB VRAM Radeon R9 285 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 190W)

AMD Radeon R9 285 's Advantages

Released 11 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (176.0GB/s vs 28.80GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 250

0.717 TFLOPS

Radeon R9 285 +358%

3.29 TFLOPS

Radeon R7 250

VS

Radeon R9 285

Graphics Card

Oct 2013

Release Date

Sep 2014

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1375 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

176.0GB/s

Render Config

8

Compute Units

28

-

512

Shading Units

1792

32

TMUs

112

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

29.38 GPixel/s

22.40 GTexel/s

Texture Rate

102.8 GTexel/s

-

FP16 (half)

3.290 TFLOPS

716.8 GFLOPS

FP32 (float)

3.290 TFLOPS

44.80 GFLOPS

FP64 (double)

205.6 GFLOPS

Board Design

55W

TDP

190W

250 W

Suggested PSU

450 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

2x 6-pin

Graphics Processor

Cape Verde

GPU Name

Tonga

Cape Verde PRO

GPU Variant

Tonga PRO (215-0851128)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

5 billion

123 mm²

Die Size

366 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2.170

-

5.1

Shader Model

6.5

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