AMD Radeon R7 450 OEM vs AMD Radeon HD 6870 1600SP Edition

VS

AMD Radeon R7 450 OEM

AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 450 OEM and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 450 OEM 's Advantages

Released 3 years and 5 months late

More VRAM (2GB vs 1024GB)

Lower TDP (65W vs 175W)

AMD Radeon HD 6870 1600SP Edition 's Advantages

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

1088 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 450 OEM

0.947 TFLOPS

Radeon HD 6870 1600SP Edition +187%

2.72 TFLOPS

Radeon R7 450 OEM

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Jun 2016

Release Date

Jan 2013

Arctic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

134.4GB/s

Render Config

8

Compute Units

20

-

512

Shading Units

1600

32

TMUs

80

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

14.80 GPixel/s

Pixel Rate

27.20 GPixel/s

29.60 GTexel/s

Texture Rate

68.00 GTexel/s

-

947.2 GFLOPS

FP32 (float)

2.720 TFLOPS

59.20 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

65W

TDP

175W

250 W

Suggested PSU

450 W

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

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Cape Verde

GPU Name

Cypress

Cape Verde PRO2

GPU Variant

Cypress XT (215-0735033)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

2.154 billion

123 mm²

Die Size

334 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

5.0

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