AMD Radeon HD 7790 vs AMD Radeon 550X

VS

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 and 2GB VRAM Radeon 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7790 's Advantages

384 additional rendering cores

AMD Radeon 550X 's Advantages

Released 6 years late

Boost Clock1218MHz

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (112.0GB/s vs 96.00GB/s)

Lower TDP (50W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7790 +43%

1.792 TFLOPS

Radeon 550X

1.247 TFLOPS

Radeon HD 7790

VS

Radeon 550X

Graphics Card

Mar 2013

Release Date

Mar 2019

Southern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1082 MHz

-

Boost Clock

1218 MHz

1500 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

96.00GB/s

Bandwidth

112.0GB/s

Render Config

-

SM Count

-

14

Compute Units

8

896

Shading Units

512

56

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

Theoretical Performance

16.00 GPixel/s

Pixel Rate

19.49 GPixel/s

56.00 GTexel/s

Texture Rate

38.98 GTexel/s

-

FP16 (half)

1247 GFLOPS

1.792 TFLOPS

FP32 (float)

1247 GFLOPS

112.0 GFLOPS

FP64 (double)

77.95 GFLOPS

Graphics Processor

Bonaire

GPU Name

Lexa

Bonaire XT (215-0839039)

GPU Variant

Lexa PRO (215-0904018)

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.08 billion

Transistors

2.2 billion

160 mm²

Die Size

103 mm²

Board Design

85W

TDP

50W

250 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

6.4

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