AMD Radeon HD 7450 vs AMD Radeon HD 7870 XT Full Specs

Summary

160 Shaders 625MHz	1,536 Shaders 975MHz
1GB DDR38.5GB/s	2GB GDDR5192GB/s
Peak·FP32·FP16 200 GFLOPS	Peak·FP32·FP16 3 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 18W	TDP 185W
Power Connectors -	Power Connectors 2x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

Radeon HD 7450200 GFLOPSFP32

x1

Radeon HD 7870 XT3 TFLOPSFP32

x14.98

Show Top Score

Theoretical Performance

Clock Speed625MHz UC·Boost·OC	Clock Speed975MHz UC·Base·Boost·OC
Peak OPS 200 GFLOPSFP32	Peak OPS 3 TFLOPSFP32
FP32 200 GFLOPS	FP32 3 TFLOPS
-	FP64 748.8 GFLOPS
Pixel Rate 2.5 GPixel/s	Pixel Rate 31.2 GPixel/s
Texture Rate 5 GTexel/s	Texture Rate 93.6 GTexel/s

Core Config

Shaders 160 Shaders	Shaders 1,536 Shaders
TMUs 8 TMUs	TMUs 96 TMUs
ROPs 4 ROPs	ROPs 32 ROPs
CUs 2 CUs	CUs 24 CUs

Clocks

Base Clock -	Base Clock 925MHz
Boost Clock 625MHz	Boost Clock 975MHz

Cache

L2 Cache 128KB shared

L2 Cache 768KB shared

Memory

1GB DDR3	2GB GDDR5
Memory Bus 64-bit	Memory Bus 256-bit
Memory Speed 1.1GT/s	Memory Speed 6GT/s
Memory Bandwidth 8.5GB/s	Memory Bandwidth 192GB/s

Power & Thermals

TDP 18W

TDP 185W

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

Encoder

-	Encoder Model VCE 1.0

Decoder

Decoder Model UVD 3.0

Decoder Model UVD 4.0

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 1-Slots	PCIe 2-Slots
-	Height 111 mm (4.37") Width 241 mm (9.49") Depth 37 mm (1.46")
Cooling Open-Air 1x Fan	Cooling Blower 1x Fan
Power Connectors -	Power Connectors 2x 6-Pin

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture TeraScale 2	Architecture GCN 1
Family Radeon HD 7000	Family Radeon HD 7000
Branding	Branding
Codename Caicos	Codename Tahiti
Chip Variant Caicos	Chip Variant Tahiti LE
Market Segment Desktop	Market Segment Desktop
Release Date Jan 1, 2012	Release Date Nov 19, 2012

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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