AMD Radeon HD 7870 GHz Edition vs AMD Radeon R7 450 OEM

VS

AMD Radeon HD 7870 GHz Edition

AMD Radeon R7 450 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 2GB VRAM Radeon R7 450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 GHz Edition 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 72.00GB/s)

768 additional rendering cores

AMD Radeon R7 450 OEM 's Advantages

Released 4 years and 3 months late

Lower TDP (65W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 GHz Edition +170%

2.56 TFLOPS

Radeon R7 450 OEM

0.947 TFLOPS

Radeon HD 7870 GHz Edition

VS

Radeon R7 450 OEM

Graphics Card

Mar 2012

Release Date

Jun 2016

Southern Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

72.00GB/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

14.80 GPixel/s

80.00 GTexel/s

Texture Rate

29.60 GTexel/s

-

2.560 TFLOPS

FP32 (float)

947.2 GFLOPS

160.0 GFLOPS

FP64 (double)

59.20 GFLOPS

Board Design

175W

TDP

65W

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 PRO2

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

2.1 (1.2)

1.2

Vulkan

1.2.170

-

5.1

Shader Model

6.5 (5.1)

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