AMD Radeon 550X 640SP vs AMD Radeon HD 8770 OEM

VS

AMD Radeon 550X 640SP

AMD Radeon HD 8770 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP 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 550X 640SP 's Advantages

Released 4 years and 7 months late

Boost Clock1071MHz

More VRAM (4GB vs 1024GB)

Lower TDP (50W vs 85W)

AMD Radeon HD 8770 OEM 's Advantages

Larger VRAM bandwidth (96.00GB/s vs 48.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

Radeon HD 8770 OEM +37%

1.882 TFLOPS

Radeon 550X 640SP

VS

Radeon HD 8770 OEM

Graphics Card

Apr 2018

Release Date

Sep 2013

Polaris

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

96.00GB/s

Render Config

10

Compute Units

14

-

640

Shading Units

896

40

TMUs

56

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

16.80 GPixel/s

42.84 GTexel/s

Texture Rate

58.80 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

1.882 TFLOPS

85.68 GFLOPS

FP64 (double)

117.6 GFLOPS

Board Design

50W

TDP

85W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Lexa

GPU Name

Bonaire

Lexa PRO (215-0904018)

GPU Variant

Bonaire XT (215-0839039)

GCN 4.0

Architecture

GCN 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

2.08 billion

103 mm²

Die Size

160 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

6.4

Shader Model

6.3

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