AMD Radeon R5 235X OEM vs AMD Radeon HD 7870 GHz Edition

VS

AMD Radeon R5 235X OEM

AMD Radeon HD 7870 GHz Edition

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R5 235X OEM and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 235X OEM 's Advantages

Released 1 years and 9 months late

Lower TDP (18W vs 175W)

AMD Radeon HD 7870 GHz Edition 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 14.40GB/s)

1120 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 235X OEM

0.28 TFLOPS

Radeon HD 7870 GHz Edition +814%

2.56 TFLOPS

Radeon R5 235X OEM

VS

Radeon HD 7870 GHz Edition

Graphics Card

Dec 2013

Release Date

Mar 2012

Volcanic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

153.6GB/s

Render Config

2

Compute Units

20

-

160

Shading Units

1280

8

TMUs

80

4

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

3.500 GPixel/s

Pixel Rate

32.00 GPixel/s

7.000 GTexel/s

Texture Rate

80.00 GTexel/s

-

280.0 GFLOPS

FP32 (float)

2.560 TFLOPS

-

FP64 (double)

160.0 GFLOPS

Board Design

18W

TDP

175W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Caicos

GPU Name

Pitcairn

Caicos XT (215-0804070)

GPU Variant

Pitcairn XT (215-0828047)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

2.8 billion

67 mm²

Die Size

212 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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