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GPU Comparison

Side-by-side comparison of specifications and performance

AMD Radeon RX 6600 XT

AMD Radeon RX 6600 XT

AMD Radeon HD 7770 GHz Edition

AMD Radeon HD 7770 GHz Edition

Performance Comparison

AMD Radeon RX 6600 XT

748%
748%

AMD Radeon HD 7770 GHz Edition

36%
36%
AMD Radeon RX 6600 XT is approximately 712% faster

Technical Specifications

SpecificationAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
Graphics ProcessorDifferent
Navi 23
Cape Verde
CoresDifferent
2048
640
TMUsDifferent
128
40
ROPsDifferent
64
16
Memory SizeDifferent
8 GB
1024 MB
Memory TypeDifferent
GDDR6
GDDR5
Bus Width
128 bit
128 bit

Graphics Processor

FeatureAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
GPU NameDifferent
Navi 23
Cape Verde
GPU VariantDifferent
Navi 23 XT(215-130000006)
Cape Verde XT(215-0825117)
ArchitectureDifferent
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process SizeDifferent
7 nm
28 nm
TransistorsDifferent
11,060 million
1,500 million
DensityDifferent
46.7M / mm²
12.2M / mm²
Die SizeDifferent
237 mm²
123 mm²
Chip PackageDifferent
BGA-1269
FCBGA-962

Graphics Card

FeatureAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
Release DateDifferent
Jul 30th, 2021
Feb 15th, 2012
AvailabilityDifferent
Aug 10th, 2021
N/A
GenerationDifferent
Navi II(RX 6000)
Southern Islands(HD 7700)
PredecessorDifferent
Navi
Northern Islands
SuccessorDifferent
Navi III
Sea Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
379 USD
159 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x8
PCIe 3.0 x16
ReviewsDifferent
45 in our database
97 in our database

Clock Speeds

FeatureAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
Base ClockDifferent
1968 MHz
N/A
Game ClockDifferent
2359 MHz
N/A
Boost ClockDifferent
2589 MHz
N/A
Memory ClockDifferent
2000 MHz16 Gbps effective
1125 MHz4.5 Gbps effective
GPU ClockDifferent
N/A
1000 MHz

Memory

FeatureAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
Memory SizeDifferent
8 GB
1024 MB
Memory TypeDifferent
GDDR6
GDDR5
Memory Bus
128 bit
128 bit
BandwidthDifferent
256.0 GB/s
72.00 GB/s

Render Config

FeatureAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
Shading UnitsDifferent
2048
640
TMUsDifferent
128
40
ROPsDifferent
64
16
Compute UnitsDifferent
32
10
RT CoresDifferent
32
N/A
L0 CacheDifferent
32 KB per WGP
N/A
L1 CacheDifferent
128 KB per Array
16 KB (per CU)
L2 CacheDifferent
2 MB
256 KB
L3 CacheDifferent
32 MB
N/A

Theoretical Performance

FeatureAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
Pixel RateDifferent
165.7 GPixel/s
16.00 GPixel/s
Texture RateDifferent
331.4 GTexel/s
40.00 GTexel/s
FP16 (half)Different
21.21 TFLOPS (2:1)
N/A
FP32 (float)Different
10.60 TFLOPS
1,280.0 GFLOPS
FP64 (double)Different
662.8 GFLOPS (1:16)
80.00 GFLOPS (1:16)

Board Design

FeatureAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
Slot Width
Dual-slot
Dual-slot
LengthDifferent
190 mm7.5 inches
210 mm8.3 inches
HeightDifferent
110 mm4.3 inches
N/A
WidthDifferent
40 mm1.6 inches
N/A
TDPDifferent
160 W
80 W
Suggested PSUDifferent
450 W
250 W
OutputsDifferent
1x HDMI 2.13x DisplayPort 1.4a
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power ConnectorsDifferent
1x 8-pin
1x 6-pin
Board NumberDifferent
D532
109-C44157-00C, C468

Graphics Features

FeatureAMD Radeon RX 6600 XTAMD Radeon HD 7770 GHz Edition
DirectXDifferent
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCLDifferent
2.1
2.1 (1.2)
VulkanDifferent
1.3
1.2.170
Shader ModelDifferent
6.8
6.5 (5.1)

Comparison Summary

7
Specifications Compared
8
Feature Categories
56
Detailed Features

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AMD Radeon RX 6600 XT vs GeForce RTX 2080 SUPER

GeForce RTX 2080 SUPER Performance120%

GeForce RTX 2080 SUPER is 20% faster than AMD Radeon RX 6600 XT

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AMD Radeon RX 6600 XT vs Radeon RX 7600 XT

Radeon RX 7600 XT Performance119%

Radeon RX 7600 XT is 19% faster than AMD Radeon RX 6600 XT

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AMD Radeon RX 6600 XT vs GeForce RTX 4060

GeForce RTX 4060 Performance119%

GeForce RTX 4060 is 19% faster than AMD Radeon RX 6600 XT

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AMD Radeon RX 6600 XT vs Arc B580

Arc B580 Performance119%

Arc B580 is 19% faster than AMD Radeon RX 6600 XT

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AMD Radeon RX 6600 XT vs GeForce RTX 5050

GeForce RTX 5050 Performance115%

GeForce RTX 5050 is 15% faster than AMD Radeon RX 6600 XT

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AMD Radeon RX 6600 XT vs GeForce RTX 2080

GeForce RTX 2080 Performance115%

GeForce RTX 2080 is 15% faster than AMD Radeon RX 6600 XT

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More Comparisons with AMD Radeon HD 7770 GHz Edition

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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 650 Ti

GeForce GTX 650 Ti Performance119%

GeForce GTX 650 Ti is 19% faster than AMD Radeon HD 7770 GHz Edition

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AMD Radeon HD 7770 GHz Edition vs Radeon HD 5850

Radeon HD 5850 Performance117%

Radeon HD 5850 is 17% faster than AMD Radeon HD 7770 GHz Edition

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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 285

GeForce GTX 285 Performance109%

GeForce GTX 285 is 9% faster than AMD Radeon HD 7770 GHz Edition

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AMD Radeon HD 7770 GHz Edition vs Radeon HD 6850

Radeon HD 6850 Performance107%

Radeon HD 6850 is 7% faster than AMD Radeon HD 7770 GHz Edition

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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 280

GeForce GTX 280 Performance100%

GeForce GTX 280 is 0% slower than AMD Radeon HD 7770 GHz Edition

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AMD Radeon HD 7770 GHz Edition vs Radeon HD 7770 GHz Edition

Radeon HD 7770 GHz Edition Performance100%

Radeon HD 7770 GHz Edition is 0% slower than AMD Radeon HD 7770 GHz Edition

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