AMD Radeon HD 8990 Full Specs

Summary

4,096 Shaders 1GHz

6GB GDDR5576GB/s

Peak·FP32·FP16 8.19 TFLOPS

Form Factor PCIe Card

TDP 375W

Power Connectors 2x 8-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth

Radeon HD 89908.19 TFLOPSFP32 (2x 4.1 TFLOPS)

x1

Top Score3.35 PFLOPS FP4 Tensor SparseDesktop1xGeForce RTX 5090

x409.19

Theoretical Performance

Clock Speed1000MHz UC·Base·Boost·OC

Peak OPS 8.19 TFLOPSFP32

FP32 8.19 TFLOPS

FP64 2.05 TFLOPS

Pixel Rate 32 GPixel/s

Texture Rate 128 GTexel/s

Core Config

Shaders 4,096 Shaders

TMUs 256 TMUs

ROPs 64 ROPs

CUs 64 CUs

Clocks

Base Clock 950MHz

Boost Clock 1GHz

Cache

L1 16KB/CU

L2 Cache 768KB shared

Memory

6GB GDDR5

Memory Bus 384-bit

Memory Speed 6GT/s

Memory Bandwidth 576GB/s

ECC No

Power & Thermals

TDP 375W

Video Output

Max Resolution 4096x2160

Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 64Hz

Multi-Monitor 4

DSC Not Supported

Ports

4x Mini DisplayPort 1.2 1x DVI-I Dual-Link

API Support

Shader Model 6.5

DirectX DirectX 12 Direct3D 11_1

OpenGL 4.6 OpenCL 2.1 Vulkan 1.2

GFX 6

Encoder

Encoder VCE 1.0

Codec AVC (H.264)

Decoder

Decoder UVD 3.2

Codec MPEG-1 MPEG-2 MPEG-4 VC-1 AVC (H.264)

Card

Form Factor PCIe Card

PCIe PCIe 3.0 x16 2-Slots

Height 115mm (4.53") Width 304mm (11.97") Depth 38mm (1.5")

Cooling Open-Air 3x Fans

Power Connectors 2x 8-Pin

Multi-GPU Multi-GPU Support Supported Multi-GPU Type 2-way CrossFireX

Chip

Manufacturer AMD

Chip Designer AMD

Architecture GCN 1

Family Radeon HD 8000

Branding

Codename Tahiti

Chip Variant Tahiti LE

Market Segment Desktop

Release Date Apr 24, 2013

Fabrication

Foundry TSMC

Fabrication Node 28nm

Die Size 352mm²

Transistor Count 4.3B

Transistor Density 12.25 MTr/mm²

Images