AMD Radeon HD 7790 vs AMD Radeon HD 7950 Mac Full Specs

Summary

896 Shaders 1GHz	2,048 Shaders 800MHz
1GB GDDR596GB/s	3GB GDDR5240GB/s
Peak·FP32·FP16 1.79 TFLOPS	Peak·FP32·FP16 3.28 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 85W	TDP 200W
Power Connectors 1x 6-Pin	Power Connectors 2x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

Radeon HD 77901.79 TFLOPSFP32

x1

Radeon HD 7950 Mac3.28 TFLOPSFP32

x1.83

Show Top Score

Theoretical Performance

Clock Speed1000MHz UC·Boost·OC	Clock Speed800MHz UC·Boost·OC
Peak OPS 1.79 TFLOPSFP32	Peak OPS 3.28 TFLOPSFP32
FP32 1.79 TFLOPS	FP32 3.28 TFLOPS
FP64 112 GFLOPS	FP64 819.2 GFLOPS
Pixel Rate 16 GPixel/s	Pixel Rate 25.6 GPixel/s
Texture Rate 56 GTexel/s	Texture Rate 89.6 GTexel/s

Core Config

Shaders 896 Shaders	Shaders 2,048 Shaders
TMUs 56 TMUs	TMUs 112 TMUs
ROPs 16 ROPs	ROPs 32 ROPs
CUs 14 CUs	CUs 32 CUs

Clocks

Boost Clock 1GHz

Boost Clock 800MHz

Cache

L2 Cache 256KB shared

L2 Cache 768KB shared

Memory

1GB GDDR5	3GB GDDR5
Memory Bus 128-bit	Memory Bus 384-bit
Memory Speed 6GT/s	Memory Speed 5GT/s
Memory Bandwidth 96GB/s	Memory Bandwidth 240GB/s

Power & Thermals

TDP 85W

TDP 200W

Video Output

Multi-Monitor 3

Multi-Monitor 3

Ports

2x Mini DisplayPort 1.2	2x Mini DisplayPort 1.2
1x HDMI 1.4	1x HDMI 1.4
1x DVI-I Dual-Link	1x DVI-I Dual-Link

Encoder

Encoder Model VCE 2.0

Encoder Model VCE 1.0

Decoder

Decoder Model UVD 4.2

Decoder Model UVD 3.2

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 2-Slots	PCIe 2-Slots
Height 111 mm (4.37") Width 183 mm (7.21") Depth 37 mm (1.46")	Height 111 mm (4.37") Width 279 mm (10.98") Depth 38 mm (1.5")
Cooling Open-Air 1x Fan	Cooling Blower 1x Fan
Power Connectors 1x 6-Pin	Power Connectors 2x 6-Pin

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture GCN 2	Architecture GCN 1
Family Radeon HD 7000	Family Radeon HD 7000
Branding	Branding
Codename Bonaire	Codename Tahiti
Chip Variant Bonaire XT	Chip Variant Tahiti LE
Market Segment Desktop	Market Segment Desktop
Release Date Mar 22, 2013	Release Date Mar 7, 2013

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 28nm	Fabrication Node 28nm
Die Size 160mm²	Die Size 352mm²
Transistor Count 2.1 Billion	Transistor Count 4.3 Billion
Transistor Density 13 MTr/mm²	Transistor Density 12.25 MTr/mm²

Images

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