ATI Radeon HD 3870 X2 vs AMD Radeon RX 7700 Full Specs

Summary

640 Shaders 825MHz	3,072 Shaders 2.4GHz
1048MB GDDR4144GB/s	12GB GDDR6432GB/s
Peak·FP32·FP16 1.06 TFLOPS	Peak·FP32·FP16 29.49 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 165W	TDP 200W
Power Connectors 1x 8-Pin 1x 6-Pin	Power Connectors 1x 8-Pin -

Highlights

Peak OPS

Peak OPS FP32 FP16 Tensor FP16-16 Tensor FP16-32 FP64 BF16 Tensor BF16 Tensor INT8 Tensor INT4 Memory Bandwidth TDP

Radeon HD 3870 X21.06 TFLOPSFP32 (2x 528 GFLOPS)

x1

Radeon RX 7700118 TOPSINT4 Tensor

x111.71

Show Top Score

Theoretical Performance

Clock Speed825MHz UC·Boost·OC	Clock Speed2400MHz UC·Base·Boost·OC
Peak OPS 1.06 TFLOPSFP32	Peak OPS 118 TOPSINT4 Tensor
-	Tensor FP16-16 29.49 TFLOPS Tensor FP16-32 29.49 TFLOPS
-	BF16 58.98 TFLOPS Tensor BF16 29.49 TFLOPS
FP32 1.06 TFLOPS	FP32 29.49 TFLOPS
FP64 211.2 GFLOPS	FP64 921.6 GFLOPS
Tensor INT4 -	Tensor INT4 118 TOPS
-	Tensor INT8 29.49 TOPS
Pixel Rate 13.2 GPixel/s	Pixel Rate 230.4 GPixel/s
Texture Rate 13.2 GTexel/s	Texture Rate 460.8 GTexel/s

Core Config

Shaders 640 Shaders	Shaders 3,072 Shaders
TMUs 32 TMUs	TMUs 192 TMUs
ROPs 32 ROPs	ROPs 96 ROPs
Tensor Cores -	Tensor Cores 96 T-Cores
RT Cores -	RT Cores 48 RT-Cores
CUs 8 CUs	CUs 48 CUs

Clocks

Base Clock -	Base Clock 1.9GHz
Boost Clock 825MHz	Boost Clock 2.4GHz

Cache

L2 Cache 256KB shared	L2 Cache 4.1MB shared
L3 Cache -	L3 Cache 48MB shared
L3 Bandwidth -	L3 Bandwidth 1.69TB/s

Memory

1048MB GDDR4	12GB GDDR6
Memory Bus 256-bit	Memory Bus 192-bit
Memory Speed 2.3GT/s	Memory Speed 18GT/s
Memory Bandwidth 144GB/s	Memory Bandwidth 432GB/s

Power & Thermals

TDP 165W

TDP 200W

Video Output

Multi-Monitor 2	Multi-Monitor 3
HDCP -	HDCP HDCP 2.3

Ports

-	3x DisplayPort 2.1
-	1x HDMI 2.1
2x DVI-I Dual-Link	-
1x S-Video	-

Encoder

-	Encoder Model VCN 4.0

Decoder

Decoder Model UVD 1.0

Decoder Model VCN 4.0

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 2-Slots	PCIe 2.5-Slots
-	Height 111 mm (4.37") Width 267 mm (10.51") Depth 50 mm (1.97")
Cooling Blower 1x Fan	Cooling Open-Air 2x Fans
Power Connectors 1x 8-Pin, 1x 6-Pin	Power Connectors 1x 8-Pin

Chip

Manufacturer ATI	Manufacturer AMD
Chip Designer ATI	Chip Designer AMD
Architecture TeraScale 1	Architecture RDNA 3
Family Radeon HD 3000	Family Radeon RX 7000
Branding	Branding
Codename Boom	Codename Wheat Nas
Chip Variant R680 XT	Chip Variant Navi 32
Market Segment Desktop	Market Segment Desktop
Release Date Jan 28, 2008	Release Date Aug 25, 2023

Fabrication

Foundry TSMC	Foundry TSMC
Other Foundries -	Other Foundries TSMCMCD
Fabrication Node 55nm -	Fabrication Node N5 N6MCD
Die Size 192mm² -	Die Size 200mm² 113mm²MCD
Transistor Count 666 Million -	Transistor Count 28.1 Billion 6.2 BillionMCD
Transistor Density 3.47 MTr/mm² -	Transistor Density 140.5 MTr/mm² 54.67 MTr/mm²MCD

Images

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