AMD Radeon HD 8870 OEM vs AMD Radeon R7 250

VS

AMD Radeon HD 8870 OEM

AMD Radeon R7 250

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM 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 HD 8870 OEM 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 28.80GB/s)

768 additional rendering cores

AMD Radeon R7 250 's Advantages

Released 9 months late

Lower TDP (55W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 8870 OEM +257%

2.56 TFLOPS

Radeon R7 250

0.717 TFLOPS

Radeon HD 8870 OEM

VS

Radeon R7 250

Graphics Card

Jan 2013

Release Date

Oct 2013

Sea Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

28.80GB/s

Render Config

20

Compute Units

8

-

1280

Shading Units

512

80

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

11.20 GPixel/s

80.00 GTexel/s

Texture Rate

22.40 GTexel/s

-

2.560 TFLOPS

FP32 (float)

716.8 GFLOPS

160.0 GFLOPS

FP64 (double)

44.80 GFLOPS

Board Design

175W

TDP

55W

450 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Cape Verde

Pitcairn XT (215-0828047)

GPU Variant

Cape Verde PRO

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.5 billion

212 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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