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

VS

AMD Radeon HD 8990 OEM

AMD Radeon RX 550 640SP

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM 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 8990 OEM 's Advantages

More VRAM (3GB vs 2GB)

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

1408 additional rendering cores

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)

Score

Benchmark

FP32 (float)

Radeon HD 8990 OEM +198%

4.096 TFLOPS

Radeon RX 550 640SP

1.371 TFLOPS

Radeon HD 8990 OEM

VS

Radeon RX 550 640SP

Graphics Card

Apr 2013

Release Date

Oct 2017

Sea Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

950 MHz

Base Clock

1019 MHz

1000 MHz

Boost Clock

1071 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

96.00GB/s

Render Config

32

Compute Units

10

-

2048

Shading Units

640

128

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

1024 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

17.14 GPixel/s

128.0 GTexel/s

Texture Rate

42.84 GTexel/s

-

FP16 (half)

1371 GFLOPS

4.096 TFLOPS

FP32 (float)

1371 GFLOPS

1024 GFLOPS

FP64 (double)

85.68 GFLOPS

Board Design

375W

TDP

60W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

None

Graphics Processor

Malta

GPU Name

Baffin

Malta XT (215-0849026)

GPU Variant

Baffin LE

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

4.313 billion

Transistors

3 billion

365 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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