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

Summary

3,072 Shaders 2.4GHz	640 Shaders 825MHz
12GB GDDR6432GB/s	1048MB GDDR4144GB/s
Peak·FP32·FP16 29.49 TFLOPS	Peak·FP32·FP16 1.06 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 200W	TDP 165W
Power Connectors 1x 8-Pin -	Power Connectors 1x 8-Pin 1x 6-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 RX 7700118 TOPSINT4 Tensor

x111.71

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

x1

Show Top Score

Theoretical Performance

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

Core Config

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

Clocks

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

Cache

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

Memory

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

Power & Thermals

TDP 200W

TDP 165W

Video Output

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

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 VCN 4.0

Decoder Model UVD 1.0

Card

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

Chip

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

Fabrication

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

Images

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