AMD Radeon HD 8450 vs AMD Radeon HD 8990 Full Specs

Summary

160 Shaders 625MHz	4,096 Shaders 1GHz
512MB DDR38.5GB/s	6GB GDDR5576GB/s
Peak·FP32·FP16 200 GFLOPS	Peak·FP32·FP16 8.19 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 18W	TDP 375W
Power Connectors -	Power Connectors 2x 8-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

Radeon HD 8450200 GFLOPSFP32

x1

Radeon HD 89908.19 TFLOPSFP32 (2x 4.1 TFLOPS)

x40.96

Show Top Score

Theoretical Performance

Clock Speed625MHz UC·Boost·OC	Clock Speed1000MHz UC·Base·Boost·OC
Peak OPS 200 GFLOPSFP32	Peak OPS 8.19 TFLOPSFP32
FP32 200 GFLOPS	FP32 8.19 TFLOPS
-	FP64 2.05 TFLOPS
Pixel Rate 2.5 GPixel/s	Pixel Rate 32 GPixel/s
Texture Rate 5 GTexel/s	Texture Rate 128 GTexel/s

Core Config

Shaders 160 Shaders	Shaders 4,096 Shaders
TMUs 8 TMUs	TMUs 256 TMUs
ROPs 4 ROPs	ROPs 64 ROPs
CUs 2 CUs	CUs 64 CUs

Clocks

Base Clock -	Base Clock 950MHz
Boost Clock 625MHz	Boost Clock 1GHz

Cache

L2 Cache 128KB shared

L2 Cache 768KB shared

Memory

512MB DDR3	6GB GDDR5
Memory Bus 64-bit	Memory Bus 384-bit
Memory Speed 1.1GT/s	Memory Speed 6GT/s
Memory Bandwidth 8.5GB/s	Memory Bandwidth 576GB/s

Power & Thermals

TDP 18W

TDP 375W

Video Output

Multi-Monitor 2

Multi-Monitor 4

Ports

-	4x Mini DisplayPort 1.2
1x HDMI 1.3	-
1x DVI-I Dual-Link	1x DVI-I Dual-Link
1x VGA	-

Encoder

-	Encoder Model VCE 1.0

Decoder

Decoder Model UVD 3.0

Decoder Model UVD 3.2

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 1-Slots	PCIe 2-Slots
-	Height 115 mm (4.53") Width 304 mm (11.97") Depth 38 mm (1.5")
Cooling Open-Air 1x Fan	Cooling Open-Air 3x Fans
Power Connectors -	Power Connectors 2x 8-Pin

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture TeraScale 2	Architecture GCN 1
Family Radeon HD 8000	Family Radeon HD 8000
Branding	Branding
Codename Caicos	Codename Tahiti
Chip Variant Caicos	Chip Variant Tahiti LE
Market Segment Desktop	Market Segment Desktop
Release Date Jan 8, 2013	Release Date Apr 24, 2013

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 40nm	Fabrication Node 28nm
Die Size 67mm²	Die Size 352mm²
Transistor Count 370 Million	Transistor Count 4.3 Billion
Transistor Density 5.52 MTr/mm²	Transistor Density 12.25 MTr/mm²

Images

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