AMD Radeon HD 7850 vs AMD Radeon RX 455 OEM

VS

AMD Radeon HD 7850

AMD Radeon RX 455 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 2GB VRAM Radeon RX 455 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 104.0GB/s)

256 additional rendering cores

AMD Radeon RX 455 OEM 's Advantages

Released 4 years and 3 months late

Lower TDP (100W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 7850 +9%

1.761 TFLOPS

Radeon RX 455 OEM

1.613 TFLOPS

Radeon HD 7850

VS

Radeon RX 455 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

1625 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

104.0GB/s

Render Config

16

Compute Units

12

-

1024

Shading Units

768

64

TMUs

48

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

27.52 GPixel/s

Pixel Rate

16.80 GPixel/s

55.04 GTexel/s

Texture Rate

50.40 GTexel/s

-

1.761 TFLOPS

FP32 (float)

1.613 TFLOPS

110.1 GFLOPS

FP64 (double)

100.8 GFLOPS

Board Design

130W

TDP

100W

300 W

Suggested PSU

300 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Pitcairn

GPU Name

Tobago

Pitcairn PRO (215-0828062)

GPU Variant

Tobago PRO (215-0875010)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

2.08 billion

212 mm²

Die Size

160 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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