AMD Radeon R7 340 OEM vs AMD Radeon HD 8770 OEM

VS

AMD Radeon R7 340 OEM

AMD Radeon HD 8770 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 340 OEM 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 R7 340 OEM 's Advantages

Released 1 years and 8 months late

Boost Clock780MHz

More VRAM (2GB vs 1024GB)

Lower TDP (50W vs 85W)

AMD Radeon HD 8770 OEM 's Advantages

Larger VRAM bandwidth (96.00GB/s vs 64.00GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 340 OEM

0.599 TFLOPS

Radeon HD 8770 OEM +214%

1.882 TFLOPS

Radeon R7 340 OEM

VS

Radeon HD 8770 OEM

Graphics Card

May 2015

Release Date

Sep 2013

Pirate Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

730 MHz

Base Clock

-

780 MHz

Boost Clock

-

1000 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

96.00GB/s

Render Config

6

Compute Units

14

-

384

Shading Units

896

24

TMUs

56

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.240 GPixel/s

Pixel Rate

16.80 GPixel/s

18.72 GTexel/s

Texture Rate

58.80 GTexel/s

-

599.0 GFLOPS

FP32 (float)

1.882 TFLOPS

37.44 GFLOPS

FP64 (double)

117.6 GFLOPS

Board Design

50W

TDP

85W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Oland

GPU Name

Bonaire

-

GPU Variant

Bonaire XT (215-0839039)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

2.08 billion

77 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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