AMD Radeon HD 8490 vs AMD Radeon HD 8950 Full Specs

Summary

160 Shaders 875MHz	1,792 Shaders 925MHz
1GB GDDR528.8GB/s	3GB GDDR5240GB/s
Peak·FP32·FP16 280 GFLOPS	Peak·FP32·FP16 3.31 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 35W	TDP 225W
Power Connectors -	Power Connectors 1x 8-Pin 1x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

Radeon HD 8490280 GFLOPSFP32

x1

Radeon HD 89503.31 TFLOPSFP32

x11.84

Show Top Score

Theoretical Performance

Clock Speed875MHz UC·Boost·OC	Clock Speed925MHz UC·Base·Boost·OC
Peak OPS 280 GFLOPSFP32	Peak OPS 3.31 TFLOPSFP32
FP32 280 GFLOPS	FP32 3.31 TFLOPS
-	FP64 828.8 GFLOPS
Pixel Rate 3.5 GPixel/s	Pixel Rate 29.6 GPixel/s
Texture Rate 7 GTexel/s	Texture Rate 103.6 GTexel/s

Core Config

Shaders 160 Shaders	Shaders 1,792 Shaders
TMUs 8 TMUs	TMUs 112 TMUs
ROPs 4 ROPs	ROPs 32 ROPs
CUs 2 CUs	CUs 28 CUs

Clocks

Base Clock -	Base Clock 850MHz
Boost Clock 875MHz	Boost Clock 925MHz

Cache

L2 Cache 128KB shared

L2 Cache 768KB shared

Memory

1GB GDDR5	3GB GDDR5
Memory Bus 64-bit	Memory Bus 384-bit
Memory Speed 3.6GT/s	Memory Speed 5GT/s
Memory Bandwidth 28.8GB/s	Memory Bandwidth 240GB/s

Power & Thermals

TDP 35W

TDP 225W

Video Output

Multi-Monitor 2

Multi-Monitor 3

Ports

-	2x Mini DisplayPort 1.2
-	1x HDMI 1.4
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 111 mm (4.37") Width 267 mm (10.51") Depth 38 mm (1.5")
Cooling Open-Air 1x Fan	Cooling Blower 1x Fan
Power Connectors -	Power Connectors 1x 8-Pin, 1x 6-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 Jul 23, 2013	Release Date Jan 8, 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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