AMD Radeon HD 6870 vs AMD Radeon R7 250E

VS

AMD Radeon HD 6870

AMD Radeon R7 250E

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 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 HD 6870 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 72.00GB/s)

608 additional rendering cores

AMD Radeon R7 250E 's Advantages

Released 3 years and 2 months late

Lower TDP (55W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +146%

2.016 TFLOPS

Radeon R7 250E

0.819 TFLOPS

Radeon HD 6870

VS

Radeon R7 250E

Graphics Card

Oct 2010

Release Date

Dec 2013

Northern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

72.00GB/s

Render Config

14

Compute Units

8

-

1120

Shading Units

512

56

TMUs

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

12.80 GPixel/s

50.40 GTexel/s

Texture Rate

25.60 GTexel/s

-

2.016 TFLOPS

FP32 (float)

819.2 GFLOPS

-

FP64 (double)

51.20 GFLOPS

Board Design

151W

TDP

55W

450 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

Cape Verde

Barts XT (215-0798000)

GPU Variant

Cape Verde PRO

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

1.5 billion

255 mm²

Die Size

123 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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