AMD Radeon HD 7850 vs AMD Radeon HD 8770 OEM

VS

AMD Radeon HD 7850

AMD Radeon HD 8770 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 1024MB VRAM Radeon HD 8770 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 96.00GB/s)

128 additional rendering cores

AMD Radeon HD 8770 OEM 's Advantages

Released 1 years and 6 months late

Lower TDP (85W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 7850

1.761 TFLOPS

Radeon HD 8770 OEM +6%

1.882 TFLOPS

Radeon HD 7850

VS

Radeon HD 8770 OEM

Graphics Card

Mar 2012

Release Date

Sep 2013

Southern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

96.00GB/s

Render Config

16

Compute Units

14

-

1024

Shading Units

896

64

TMUs

56

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

58.80 GTexel/s

-

1.761 TFLOPS

FP32 (float)

1.882 TFLOPS

110.1 GFLOPS

FP64 (double)

117.6 GFLOPS

Board Design

130W

TDP

85W

300 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Pitcairn

GPU Name

Bonaire

Pitcairn PRO (215-0828062)

GPU Variant

Bonaire XT (215-0839039)

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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