AMD Radeon 550X 640SP vs AMD Radeon RX Vega 64

VS

AMD Radeon 550X 640SP

AMD Radeon RX Vega 64

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 8GB VRAM Radeon RX Vega 64 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 640SP 's Advantages

Released 8 months late

Lower TDP (50W vs 295W)

AMD Radeon RX Vega 64 's Advantages

Boost Clock has increased by 44% (1546MHz vs 1071MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (483.8GB/s vs 48.00GB/s)

3456 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

Radeon RX Vega 64 +823%

12.66 TFLOPS

Radeon 550X 640SP

VS

Radeon RX Vega 64

Graphics Card

Apr 2018

Release Date

Aug 2017

Polaris

Generation

Vega

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1019 MHz

Base Clock

1247 MHz

1071 MHz

Boost Clock

1546 MHz

1500 MHz

Memory Clock

945 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

HBM2

64bit

Memory Bus

2048bit

48.00GB/s

Bandwidth

483.8GB/s

Render Config

10

Compute Units

64

-

640

Shading Units

4096

40

TMUs

256

16

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

98.94 GPixel/s

42.84 GTexel/s

Texture Rate

395.8 GTexel/s

1371 GFLOPS

FP16 (half)

25.33 TFLOPS

1371 GFLOPS

FP32 (float)

12.66 TFLOPS

85.68 GFLOPS

FP64 (double)

791.6 GFLOPS

Board Design

50W

TDP

295W

250 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

2x 8-pin

Graphics Processor

Lexa

GPU Name

Vega 10

Lexa PRO (215-0904018)

GPU Variant

Vega 10 XT (215-0894200)

GCN 4.0

Architecture

GCN 5.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

12.5 billion

103 mm²

Die Size

495 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

6.4

Shader Model

6.4

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