AMD Radeon HD 8990 OEM vs AMD Radeon R9 255 OEM

VS

AMD Radeon HD 8990 OEM

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8990 OEM 's Advantages

Boost Clock has increased by 8% (1000MHz vs 930MHz)

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 73.60GB/s)

1536 additional rendering cores

AMD Radeon R9 255 OEM 's Advantages

Released 8 months late

Lower TDP (65W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 8990 OEM +330%

4.096 TFLOPS

Radeon R9 255 OEM

0.952 TFLOPS

Radeon HD 8990 OEM

VS

Radeon R9 255 OEM

Graphics Card

Apr 2013

Release Date

Dec 2013

Sea Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

900 MHz

1000 MHz

Boost Clock

930 MHz

1500 MHz

Memory Clock

1150 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

73.60GB/s

Render Config

32

Compute Units

8

-

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

14.88 GPixel/s

128.0 GTexel/s

Texture Rate

29.76 GTexel/s

-

4.096 TFLOPS

FP32 (float)

952.3 GFLOPS

1024 GFLOPS

FP64 (double)

59.52 GFLOPS

Board Design

375W

TDP

65W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

No outputs

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Malta

GPU Name

Cape Verde

Malta XT (215-0849026)

GPU Variant

Cape Verde PRX

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.5 billion

365 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

Related GPU Comparisons

1

AMD Radeon HD 8990 OEM vs NVIDIA GeForce GT 740 OEM

2

AMD Radeon HD 8990 OEM vs ATI Radeon HD 5530

3

AMD Radeon HD 8990 OEM vs NVIDIA GeForce RTX 3050 8 GB GA107

4

AMD Radeon HD 8990 OEM vs NVIDIA GeForce GTX 760 OEM

5

AMD Radeon HD 8990 OEM vs NVIDIA GeForce GT 220 OEM

6

AMD Radeon HD 8990 OEM vs AMD FirePro W7000

7

AMD Radeon HD 8990 OEM vs ATI Radeon HD 4670

8

AMD Radeon HD 8990 OEM vs NVIDIA GeForce RTX 3070

9

AMD Radeon HD 8990 OEM vs NVIDIA GeForce 8300 GS

10

AMD Radeon HD 8990 OEM vs AMD Radeon R9 280

Related News

1

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

2

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

3

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

4

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

5

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

6

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

7

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

8

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

9

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

10

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!