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GPU Comparison

Side-by-side comparison of specifications and performance

AMD Radeon RX 7800 XT

AMD Radeon RX 7800 XT

AMD Radeon HD 6990

AMD Radeon HD 6990

Performance Comparison

AMD Radeon RX 7800 XT

552%
552%

AMD Radeon HD 6990

18%
18%
AMD Radeon RX 7800 XT is approximately 534% faster

Technical Specifications

SpecificationAMD Radeon RX 7800 XTAMD Radeon HD 6990
Graphics ProcessorDifferent
Navi 32
Antilles x2
CoresDifferent
3840
1536 x2
TMUsDifferent
240
96 x2
ROPsDifferent
96
32 x2
Memory SizeDifferent
16 GB
2 GB x2
Memory TypeDifferent
GDDR6
GDDR5
Bus WidthDifferent
256 bit
256 bit x2

Graphics Processor

FeatureAMD Radeon RX 7800 XTAMD Radeon HD 6990
GPU NameDifferent
Navi 32
Antilles
CodenameDifferent
Wheat Nas
N/A
GPU VariantDifferent
Navi 32 XT(215-180000006)
Antilles XT(215-0807027)
ArchitectureDifferent
RDNA 3.0
TeraScale 3
Foundry
TSMC
TSMC
Process SizeDifferent
5 nm
40 nm
MCD ProcessDifferent
6 nm
N/A
Process TypeDifferent
N5 / N6 FinFET
N/A
TransistorsDifferent
28,100 million
2,640 million
DensityDifferent
81.2M / mm²
6.8M / mm²
Die SizeDifferent
346 mm²
389 mm²
GCD SizeDifferent
200mm²
N/A
MCD SizeDifferent
36.6 mm² x4
N/A
Chip PackageDifferent
MCM
N/A
Package SizeDifferent
40mm × 40mm
N/A

Graphics Card

FeatureAMD Radeon RX 7800 XTAMD Radeon HD 6990
Release DateDifferent
Aug 25th, 2023
Mar 8th, 2011
AvailabilityDifferent
Sep 6th, 2023
N/A
GenerationDifferent
Navi III(RX 7000)
Northern Islands(HD 6900)
PredecessorDifferent
Navi II
Evergreen
SuccessorDifferent
Navi IV
Southern Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
499 USD
699 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x16
PCIe 2.0 x16
ReviewsDifferent
44 in our database
47 in our database

Clock Speeds

FeatureAMD Radeon RX 7800 XTAMD Radeon HD 6990
Base ClockDifferent
1295 MHz
N/A
Game ClockDifferent
2124 MHz
N/A
Boost ClockDifferent
2430 MHz
N/A
Memory ClockDifferent
2438 MHz19.5 Gbps effective
1250 MHz5 Gbps effective
GPU ClockDifferent
N/A
830 MHz

Memory

FeatureAMD Radeon RX 7800 XTAMD Radeon HD 6990
Memory SizeDifferent
16 GB
2 GB
Memory TypeDifferent
GDDR6
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
624.1 GB/s
160.0 GB/s

Render Config

FeatureAMD Radeon RX 7800 XTAMD Radeon HD 6990
Shading UnitsDifferent
3840
1536
TMUsDifferent
240
96
ROPsDifferent
96
32
Compute UnitsDifferent
60
24
Matrix CoresDifferent
120
N/A
RT CoresDifferent
60
N/A
L0 CacheDifferent
32 KB per WGP
N/A
L1 CacheDifferent
128 KB per Array
8 KB (per CU)
L2 CacheDifferent
4 MB
512 KB
L3 CacheDifferent
64 MB
N/A

Theoretical Performance

FeatureAMD Radeon RX 7800 XTAMD Radeon HD 6990
Pixel RateDifferent
233.3 GPixel/s
26.56 GPixel/s
Texture RateDifferent
583.2 GTexel/s
79.68 GTexel/s
FP16 (half)Different
74.65 TFLOPS (2:1)
N/A
FP32 (float)Different
37.32 TFLOPS
2.550 TFLOPS
FP64 (double)Different
1,166.4 GFLOPS (1:32)
637.4 GFLOPS (1:4)

Board Design

FeatureAMD Radeon RX 7800 XTAMD Radeon HD 6990
Slot Width
Dual-slot
Dual-slot
LengthDifferent
267 mm10.5 inches
310 mm12.2 inches
HeightDifferent
111 mm4.4 inches
115 mm4.5 inches
WidthDifferent
50 mm2 inches
40 mm1.6 inches
TDPDifferent
263 W
375 W
Suggested PSUDifferent
600 W
750 W
OutputsDifferent
1x HDMI 2.1a3x DisplayPort 2.1
1x DVI4x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
2x 8-pin
Board NumberDifferent
109-D712A7-00_02
109-C20647-00

Graphics Features

FeatureAMD Radeon RX 7800 XTAMD Radeon HD 6990
DirectXDifferent
12 Ultimate (12_2)
11.2 (11_0)
OpenGLDifferent
4.6
4.4
OpenCLDifferent
2.2
1.2
VulkanDifferent
1.3
N/A
Shader ModelDifferent
6.8
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
63
Detailed Features

More Comparisons with AMD Radeon RX 7800 XT

Compare AMD Radeon RX 7800 XT with other GPUs of similar performance

AMD Radeon RX 7800 XT vs GeForce RTX 4070 Ti

GeForce RTX 4070 Ti Performance116%

GeForce RTX 4070 Ti is 16% faster than AMD Radeon RX 7800 XT

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AMD Radeon RX 7800 XT vs GeForce RTX 5070

GeForce RTX 5070 Performance115%

GeForce RTX 5070 is 15% faster than AMD Radeon RX 7800 XT

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AMD Radeon RX 7800 XT vs GeForce RTX 3090

GeForce RTX 3090 Performance113%

GeForce RTX 3090 is 13% faster than AMD Radeon RX 7800 XT

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AMD Radeon RX 7800 XT vs GeForce RTX 3080 Ti

GeForce RTX 3080 Ti Performance111%

GeForce RTX 3080 Ti is 11% faster than AMD Radeon RX 7800 XT

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AMD Radeon RX 7800 XT vs GeForce RTX 4070 SUPER

GeForce RTX 4070 SUPER Performance108%

GeForce RTX 4070 SUPER is 8% faster than AMD Radeon RX 7800 XT

Compare Detailed Specs

AMD Radeon RX 7800 XT vs Radeon RX 7900 GRE

Radeon RX 7900 GRE Performance106%

Radeon RX 7900 GRE is 6% faster than AMD Radeon RX 7800 XT

Compare Detailed Specs

More Comparisons with AMD Radeon HD 6990

Compare AMD Radeon HD 6990 with other GPUs of similar performance

AMD Radeon HD 6990 vs GeForce GTX 1650

GeForce GTX 1650 Performance119%

GeForce GTX 1650 is 19% faster than AMD Radeon HD 6990

Compare Detailed Specs

AMD Radeon HD 6990 vs Radeon RX 6400

Radeon RX 6400 Performance117%

Radeon RX 6400 is 17% faster than AMD Radeon HD 6990

Compare Detailed Specs

AMD Radeon HD 6990 vs Arc A380

Arc A380 Performance115%

Arc A380 is 15% faster than AMD Radeon HD 6990

Compare Detailed Specs

AMD Radeon HD 6990 vs GeForce GTX 780

GeForce GTX 780 Performance115%

GeForce GTX 780 is 15% faster than AMD Radeon HD 6990

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AMD Radeon HD 6990 vs Radeon HD 7970 GHz Edition

Radeon HD 7970 GHz Edition Performance104%

Radeon HD 7970 GHz Edition is 4% faster than AMD Radeon HD 6990

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AMD Radeon HD 6990 vs GeForce GTX 590

GeForce GTX 590 Performance104%

GeForce GTX 590 is 4% faster than AMD Radeon HD 6990

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