AMD Radeon 550X 640SP vs AMD Radeon R7 260X

VS

AMD Radeon 550X 640SP

AMD Radeon R7 260X

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 2GB VRAM Radeon R7 260X 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 6 months late

Boost Clock1071MHz

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 115W)

AMD Radeon R7 260X 's Advantages

Larger VRAM bandwidth (104.0GB/s vs 48.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

Radeon R7 260X +43%

1.971 TFLOPS

Radeon 550X 640SP

VS

Radeon R7 260X

Graphics Card

Apr 2018

Release Date

Oct 2013

Polaris

Generation

Volcanic 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

1625 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

104.0GB/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

17.60 GPixel/s

42.84 GTexel/s

Texture Rate

61.60 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

1.971 TFLOPS

85.68 GFLOPS

FP64 (double)

123.2 GFLOPS

Board Design

50W

TDP

115W

250 W

Suggested PSU

300 W

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

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Lexa

GPU Name

Bonaire

Lexa PRO (215-0904018)

GPU Variant

Bonaire XTX (215-0839097)

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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