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AMD Radeon RX 6600 XT

Graphics Processor
Navi 23
Cores
2048
TMUs
128
ROPs
64
Memory Size
8 GB
Memory Type
GDDR6
Bus Width
128 bit
The Radeon RX 6600 XT is a graphics card by AMD, launched in March 2021. Built on the 7 nm process, and based on the Navi 23 graphics processor, in its Navi 23 variant, the card supports DirectX 12 Ultimate. This ensures that all modern games will run on Radeon RX 6600 XT. Additionally, the DirectX 12 Ultimate capability guarantees support for hardware-raytracing, variable-rate shading and more, in upcoming video games. The Navi 23 graphics processor is an average sized chip with a die area of 236 mm². It features 2048 shading units, 128 texture mapping units, and 64 ROPs. The card also has 32 raytracing acceleration cores. AMD has paired 8 GB GDDR6 memory with the Radeon RX 6600 XT, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 1489 MHz, which can be boosted up to 2500 MHz, memory is running at 2000 MHz (16 Gbps effective).
Being a dual-slot card, the AMD Radeon RX 6600 XT draws power from 1x 8-pin power connector, with power draw rated at 180 W maximum. Display outputs include: 1x HDMI, 2x DisplayPort. Radeon RX 6600 XT is connected to the rest of the system using a PCI-Express 4.0 x16 interface.

Graphics Processor

GPU Name
Navi 23
GPU Variant
Navi 23
Architecture
RDNA 2.0
Foundry
TSMC
Process Size
7 nm
Transistors
unknown
Die Size
236 mm²

Graphics Card

Release Date
Unknown
Generation
Navi II
(RX 6000)
Predecessor
Navi
Production
Active
Bus Interface
PCIe 4.0 x16

Relative Performance

1%
GeForce 210
1%
GeForce 9400 GT
2%
Radeon HD 4550
2%
Radeon HD 5450
3%
Radeon HD 6450
3%
GeForce GT 520
3%
GeForce GT 220
4%
GeForce GT 430
4%
Radeon HD 5570
5%
Radeon HD 4670
5%
GeForce GT 440
5%
GeForce GT 240
6%
GeForce 9600 GT
6%
Radeon HD 5670
7%
GeForce GT 640
7%
GeForce 9800 GT
7%
Radeon HD 6670
7%
Radeon HD 4830
8%
Radeon HD 4770
8%
Radeon HD 4850
9%
GeForce GTS 250
9%
GeForce GTS 450
9%
Radeon HD 5750
10%
Radeon HD 7750
11%
Radeon HD 5770
11%
GeForce GTX 260
11%
Radeon HD 4870
11%
Radeon Vega 8
11%
GeForce GTX 550 Ti
11%
GeForce GTX 650
12%
Radeon HD 5830
12%
Radeon HD 6790
13%
Radeon HD 4890
13%
GeForce GTX 460
13%
Radeon RX Vega 11
13%
GeForce GT 1030
13%
GeForce GTX 275
13%
Radeon HD 7770 GHz Edition
13%
GeForce GTX 280
14%
GeForce GTX 465
14%
Radeon HD 6850
15%
GeForce GTX 285
16%
Radeon HD 5850
16%
GeForce GTX 650 Ti
16%
Radeon HD 7790
17%
Radeon RX 550
17%
GeForce GTX 470
17%
Radeon HD 6870
18%
Radeon HD 5870
19%
GeForce GTX 560 Ti
19%
Radeon HD 4870 X2
19%
GeForce GTX 750 Ti
20%
Radeon HD 6950
20%
GeForce GTX 295
20%
GeForce GTX 650 Ti Boost
21%
Radeon HD 7850
21%
GeForce GTX 480
22%
Radeon HD 6970
22%
Radeon R7 265
23%
Radeon RX 460
23%
Radeon R7 370
23%
GeForce GTX 660
23%
GeForce GTX 570
23%
Radeon RX 560
25%
GeForce GTX 950
25%
Radeon HD 7870 GHz Edition
25%
Radeon R9 270X
26%
GeForce GTX 660 Ti
26%
GeForce GTX 580
26%
GeForce GTX 1050
26%
Radeon HD 7950
27%
Radeon HD 5970
27%
GeForce GTX 760
30%
GeForce GTX 670
30%
GeForce GTX 960
31%
Radeon R9 380
31%
Radeon R9 285
32%
Radeon HD 7970
32%
GeForce GTX 680
33%
GeForce GTX 1050 Ti
34%
GeForce GTX 770
34%
Radeon HD 6990
35%
Radeon R9 280X
36%
GeForce GTX 590
36%
Radeon HD 7970 GHz Edition
39%
GeForce GTX 780
41%
GeForce GTX 1650
43%
Radeon RX 470
44%
Radeon R9 290
46%
Radeon RX 570
47%
Radeon R9 390
47%
Radeon R9 290X
48%
GeForce GTX 970
48%
GeForce GTX TITAN
49%
GeForce GTX 780 Ti
50%
Radeon R9 390X
50%
Radeon HD 7990
50%
Radeon RX 480
51%
GeForce GTX 690
52%
GeForce GTX 1060 6 GB
53%
Radeon RX 5500 OEM
53%
Radeon RX 580
54%
Radeon RX 5500 XT
55%
GeForce GTX 980
55%
GeForce GTX 1650 SUPER
55%
Radeon R9 FURY
58%
Radeon RX 590
61%
Radeon R9 295X2
61%
GeForce GTX 1660
62%
Radeon R9 FURY X
63%
GeForce GTX 980 Ti
65%
GeForce GTX TITAN X
69%
GeForce GTX 1660 SUPER
70%
GeForce GTX 1070
70%
GeForce GTX 1660 Ti
75%
Radeon RX Vega 56
79%
GeForce GTX 1070 Ti
80%
Radeon RX 5600 XT
82%
Radeon RX Vega 64
83%
GeForce GTX 1080
83%
GeForce RTX 2060
86%
Radeon RX 5700
93%
GeForce RTX 2060 SUPER
96%
GeForce RTX 2070
98%
GeForce RTX 3060
98%
Radeon RX 5700 XT
100%
Radeon VII
100%
Radeon RX 6600 XT
102%
TITAN X Pascal
105%
GeForce GTX 1080 Ti
106%
GeForce RTX 2070 SUPER
113%
GeForce RTX 2080
120%
GeForce RTX 2080 SUPER
122%
GeForce RTX 3060 Ti
129%
Radeon RX 6700 XT
132%
GeForce RTX 2080 Ti
134%
GeForce RTX 3070
148%
Radeon RX 6800
171%
Radeon RX 6800 XT
174%
GeForce RTX 3080
181%
Radeon RX 6900 XT
192%
GeForce RTX 3090
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

Base Clock
1489 MHz
Boost Clock
2500 MHz
Memory Clock
2000 MHz
16 Gbps effective

Memory

Memory Size
8 GB
Memory Type
GDDR6
Memory Bus
128 bit
Bandwidth
256.0 GB/s

Render Config

Shading Units
2048
TMUs
128
ROPs
64
Compute Units
32
RT Cores
32
L0 Cache
32 KB per WGP
L1 Cache
128 KB per Array
L2 Cache
3 MB
L3 Cache
32 MB

Theoretical Performance

Pixel Rate
160.0 GPixel/s
Texture Rate
320.0 GTexel/s
FP16 (half) performance
20.48 TFLOPS (2:1)
FP32 (float) performance
10.24 TFLOPS
FP64 (double) performance
640.0 GFLOPS (1:16)

Board Design

Slot Width
Dual-slot
TDP
180 W
Suggested PSU
450 W
Outputs
1x HDMI
2x DisplayPort
Power Connectors
1x 8-pin

Graphics Features

DirectX
12 Ultimate (12_2)
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
Shader Model
6.5

Card Notes

Based off of speculation/reddit and other sources online.

Placeholder

Navi 23 GPU Notes

Architecture Codename: Navi
Codename: Dimgrey Cavefish
Graphics/Compute: GFX10 (gfx1032)
Display Core Next: 3.0
Video Core Next: 3.0