AMD Radeon HD 7790 vs AMD Radeon RX 550 640SP

VS

AMD Radeon HD 7790

AMD Radeon RX 550 640SP

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 and 2GB VRAM Radeon RX 550 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7790 's Advantages

256 additional rendering cores

AMD Radeon RX 550 640SP 's Advantages

Released 4 years and 7 months late

Boost Clock1071MHz

More VRAM (2GB vs 1024GB)

Lower TDP (60W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7790 +30%

1.792 TFLOPS

Radeon RX 550 640SP

1.371 TFLOPS

Radeon HD 7790

VS

Radeon RX 550 640SP

Graphics Card

Mar 2013

Release Date

Oct 2017

Southern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1019 MHz

-

Boost Clock

1071 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

96.00GB/s

Bandwidth

96.00GB/s

Render Config

14

Compute Units

10

-

896

Shading Units

640

56

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

17.14 GPixel/s

56.00 GTexel/s

Texture Rate

42.84 GTexel/s

-

FP16 (half)

1371 GFLOPS

1.792 TFLOPS

FP32 (float)

1371 GFLOPS

112.0 GFLOPS

FP64 (double)

85.68 GFLOPS

Board Design

85W

TDP

60W

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 Processor

Bonaire

GPU Name

Baffin

Bonaire XT (215-0839039)

GPU Variant

Baffin LE

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.08 billion

Transistors

3 billion

160 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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