AMD Radeon RX 7900 GRE vs XFX Radeon RX 6900 XT Speedster MERC 319 Full Specs

Summary

5,120 Shaders 2.25GHz	5,120 Shaders 2.37GHz
16GB GDDR6576GB/s	16GB GDDR6512GB/s
Peak·FP32·FP16 45.98 TFLOPS	Peak·FP32·FP16 24.22 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 260W	TDP 350W
Power Connectors 2x 8-Pin	Power Connectors 2x 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 RX 7900 GRE183.9 TOPSINT4 Tensor

x3.80

Radeon RX 6900 XT Speedster MERC 31948.44 TFLOPSFP16

x1

Show Top Score

Theoretical Performance

Clock Speed2245MHz UC·Base·Boost·OC	Clock Speed2365MHz UC·Base·Boost·OC
Peak OPS 183.9 TOPSINT4 Tensor	Peak OPS 48.44 TFLOPSFP16
Tensor FP16-16 45.98 TFLOPS Tensor FP16-32 45.98 TFLOPS	-
BF16 91.96 TFLOPS Tensor BF16 45.98 TFLOPS	-
FP32 45.98 TFLOPS	FP32 24.22 TFLOPS
FP64 1.44 TFLOPS	FP64 1.51 TFLOPS
Tensor INT4 183.9 TOPS	Tensor INT4 -
Tensor INT8 45.98 TOPS	-
Pixel Rate 359.2 GPixel/s	Pixel Rate 302.7 GPixel/s
Texture Rate 718.4 GTexel/s	Texture Rate 756.8 GTexel/s

Core Config

Shaders 5,120 Shaders	Shaders 5,120 Shaders
TMUs 320 TMUs	TMUs 320 TMUs
ROPs 160 ROPs	ROPs 128 ROPs
Tensor Cores 160 T-Cores	Tensor Cores -
RT Cores 80 RT-Cores	RT Cores 80 RT-Cores
CUs 80 CUs	CUs 80 CUs

Clocks

Base Clock 1.88GHz	Base Clock 1.95GHz
Boost Clock 2.25GHz	Boost Clock 2.37GHz

Cache

L2 Cache 6.1MB shared	L2 Cache 4.1MB shared
L3 Cache 64MB shared	L3 Cache 128MB shared
L3 Bandwidth 2.25TB/s	L3 Bandwidth 1.66TB/s

Memory

16GB GDDR6	16GB GDDR6
Memory Bus 256-bit	Memory Bus 256-bit
Memory Speed 18GT/s	Memory Speed 16GT/s
Memory Bandwidth 576GB/s	Memory Bandwidth 512GB/s

Power & Thermals

TDP 260W	TDP 350W
Max Temp -	Max Temp 110°C Max

Video Output

Multi-Monitor 3	Multi-Monitor 4
HDCP HDCP 2.3	HDCP HDCP 2.3

Ports

2x DisplayPort 2.1	-
-	2x DisplayPort 1.4
1x HDMI 2.1	1x HDMI 2.1
1x USB-C	1x USB-C

Encoder

Encoder Model VCN 4.0

Encoder Model VCN 3.0

Decoder

Decoder Model VCN 4.0

Decoder Model VCN 3.0

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 2.5-Slots	PCIe 2.8-Slots
Height 110 mm (4.33") Width 276 mm (10.87") Depth 51 mm (2.01")	Height 139 mm (5.47") Width 340 mm (13.39") Depth 57 mm (2.24")
Cooling Open-Air 3x Fans	Cooling Open-Air 3x Fans
Power Connectors 2x 8-Pin	Power Connectors 2x 8-Pin

Chip

Manufacturer AMD	Manufacturer XFX
Chip Designer AMD	Chip Designer AMD
Architecture RDNA 3	Architecture RDNA 2
Family Radeon RX 7000	Family Radeon RX 6000
Branding	Branding
Codename Plum Bonito	Codename Sienna Cichlid
Chip Variant Navi 31 XL	Chip Variant Navi 21 XL
Market Segment Desktop	Market Segment Desktop
Release Date Jul 27, 2023	Release Date Dec 8, 2020

Fabrication

Foundry TSMC	Foundry TSMC
Other Foundries TSMCMCD	Other Foundries -
Fabrication Node N5 N6MCD	Fabrication Node N7 -
Die Size 304mm² 150mm²MCD	Die Size 520mm² -
Transistor Count 45.4 Billion 8.2 BillionMCD	Transistor Count 26.8 Billion -
Transistor Density 149.2 MTr/mm² 54.67 MTr/mm²MCD	Transistor Density 51.56 MTr/mm² -

Images

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Competitors

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