AMD Radeon RX 7800 XT vs ATI Radeon HD 2900 XT Full Specs

Summary

3,840 Shaders 2.43GHz	320 Shaders 743MHz
16GB GDDR6620.8GB/s	1GB GDDR4128GB/s
Peak·FP32·FP16 37.32 TFLOPS	Peak·FP32·FP16 475.5 GFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 263W	TDP 215W
Power Connectors 2x 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 7800 XT149.3 TOPSINT4 Tensor

x313.97

Radeon HD 2900 XT475.5 GFLOPSFP32

x1

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Theoretical Performance

Clock Speed2430MHz UC·Base·Boost·OC	Clock Speed743MHz UC·Boost·OC
Peak OPS 149.3 TOPSINT4 Tensor	Peak OPS 475.5 GFLOPSFP32
Tensor FP16-16 37.32 TFLOPS Tensor FP16-32 37.32 TFLOPS	-
BF16 74.65 TFLOPS Tensor BF16 37.32 TFLOPS	-
FP32 37.32 TFLOPS	FP32 475.5 GFLOPS
FP64 1.17 TFLOPS	-
Tensor INT4 149.3 TOPS	Tensor INT4 -
Tensor INT8 37.32 TOPS	-
Pixel Rate 233.3 GPixel/s	Pixel Rate 11.9 GPixel/s
Texture Rate 583.2 GTexel/s	Texture Rate 11.9 GTexel/s

Core Config

Shaders 3,840 Shaders	Shaders 320 Shaders
TMUs 240 TMUs	TMUs 16 TMUs
ROPs 96 ROPs	ROPs 16 ROPs
Tensor Cores 120 T-Cores	Tensor Cores -
RT Cores 60 RT-Cores	RT Cores -
CUs 60 CUs	CUs 4 CUs

Clocks

Base Clock 1.8GHz	Base Clock -
Boost Clock 2.43GHz	Boost Clock 743MHz

Cache

L2 Cache 4.1MB shared	L2 Cache 256KB shared
L3 Cache 64MB shared	L3 Cache -
L3 Bandwidth 2.25TB/s	L3 Bandwidth -

Memory

16GB GDDR6	1GB GDDR4
Memory Bus 256-bit	Memory Bus 512-bit
Memory Speed 19.4GT/s	Memory Speed 2GT/s
Memory Bandwidth 620.8GB/s	Memory Bandwidth 128GB/s

Power & Thermals

TDP 263W

TDP 215W

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 2x 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 2000
Branding	Branding
Codename Wheat Nas	Codename Pele
Chip Variant Navi 32	Chip Variant R600 GT
Market Segment Desktop	Market Segment Desktop
Release Date Aug 25, 2023	Release Date May 14, 2007

Fabrication

Foundry TSMC	Foundry TSMC
Other Foundries TSMCMCD	Other Foundries -
Fabrication Node N5 N6MCD	Fabrication Node 80nm -
Die Size 200mm² 150mm²MCD	Die Size 420mm² -
Transistor Count 28.1 Billion 8.2 BillionMCD	Transistor Count 720 Million -
Transistor Density 140.5 MTr/mm² 54.67 MTr/mm²MCD	Transistor Density 1.71 MTr/mm² -

Images

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