AMD Radeon RX 550 640SP vs AMD Radeon HD 8990 OEM

VS

AMD Radeon RX 550 640SP

AMD Radeon HD 8990 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 640SP and 3GB VRAM Radeon HD 8990 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 640SP 's Advantages

Released 4 years and 6 months late

Boost Clock has increased by 7% (1071MHz vs 1000MHz)

Lower TDP (60W vs 375W)

AMD Radeon HD 8990 OEM 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 96.00GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550 640SP

1.371 TFLOPS

Radeon HD 8990 OEM +198%

4.096 TFLOPS

Radeon RX 550 640SP

VS

Radeon HD 8990 OEM

Graphics Card

Oct 2017

Release Date

Apr 2013

Polaris

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1019 MHz

Base Clock

950 MHz

1071 MHz

Boost Clock

1000 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

96.00GB/s

Bandwidth

288.0GB/s

Render Config

10

Compute Units

32

-

640

Shading Units

2048

40

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

768 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

32.00 GPixel/s

42.84 GTexel/s

Texture Rate

128.0 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

4.096 TFLOPS

85.68 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

60W

TDP

375W

250 W

Suggested PSU

750 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

Baffin

GPU Name

Malta

Baffin LE

GPU Variant

Malta XT (215-0849026)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

4.313 billion

123 mm²

Die Size

365 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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