AMD Radeon RX 7650 GRE vs ATI Radeon HD 3850 X2 Full Specs

Summary

2,048 Shaders 2.69GHz	640 Shaders 668MHz
8GB GDDR6288GB/s	1048MB GDDR3106GB/s
Peak·FP32·FP16 22.08 TFLOPS	Peak·FP32·FP16 855 GFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 165W	TDP 140W
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 7650 GRE88.31 TOPSINT4 Tensor

x103.28

Radeon HD 3850 X2855 GFLOPSFP32 (2x 427.5 GFLOPS)

x1

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Theoretical Performance

Clock Speed2695MHz UC·Base·Boost·OC	Clock Speed668MHz UC·Boost·OC
Peak OPS 88.31 TOPSINT4 Tensor	Peak OPS 855 GFLOPSFP32
Tensor FP16-16 22.08 TFLOPS Tensor FP16-32 22.08 TFLOPS	-
BF16 44.15 TFLOPS Tensor BF16 22.08 TFLOPS	-
FP32 22.08 TFLOPS	FP32 855 GFLOPS
FP64 689.9 GFLOPS	FP64 171 GFLOPS
Tensor INT4 88.31 TOPS	Tensor INT4 -
Tensor INT8 22.08 TOPS	-
Pixel Rate 172.5 GPixel/s	Pixel Rate 10.7 GPixel/s
Texture Rate 345 GTexel/s	Texture Rate 10.7 GTexel/s

Core Config

Shaders 2,048 Shaders	Shaders 640 Shaders
TMUs 128 TMUs	TMUs 32 TMUs
ROPs 64 ROPs	ROPs 32 ROPs
Tensor Cores 64 T-Cores	Tensor Cores -
RT Cores 32 RT-Cores	RT Cores -
CUs 32 CUs	CUs 8 CUs

Clocks

Base Clock 1.72GHz	Base Clock -
Boost Clock 2.69GHz	Boost Clock 668MHz

Cache

L2 Cache 2MB shared	L2 Cache 256KB shared
L3 Cache 32MB shared	L3 Cache -
L3 Bandwidth 1.16TB/s	L3 Bandwidth -

Memory

8GB GDDR6	1048MB GDDR3
Memory Bus 128-bit	Memory Bus 256-bit
Memory Speed 18GT/s	Memory Speed 1.7GT/s
Memory Bandwidth 288GB/s	Memory Bandwidth 106GB/s

Power & Thermals

TDP 165W

TDP 140W

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-Slots	PCIe 2-Slots
Height 115 mm (4.53") Width 204 mm (8.03") Depth 40 mm (1.57")	-
Cooling Open-Air 2x Fans	Cooling Open-Air 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 Hotpink Bonefish	Codename Boom
Chip Variant Navi 33 XL	Chip Variant RV670 Pro
Market Segment Desktop	Market Segment Desktop
Release Date Feb 26, 2025	Release Date Apr 4, 2008

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N6	Fabrication Node 55nm
Die Size 204mm²	Die Size 192mm²
Transistor Count 13.3 Billion	Transistor Count 666 Million
Transistor Density 65.2 MTr/mm²	Transistor Density 3.47 MTr/mm²

Images

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