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GPU Comparison

Side-by-side comparison of specifications and performance

AMD Radeon RX 6900 XT

AMD Radeon RX 6900 XT

AMD Radeon R9 280X

AMD Radeon R9 280X

Performance Comparison

AMD Radeon RX 6900 XT

549%
549%

AMD Radeon R9 280X

18%
18%
AMD Radeon RX 6900 XT is approximately 531% faster

Technical Specifications

SpecificationAMD Radeon RX 6900 XTAMD Radeon R9 280X
Graphics ProcessorDifferent
Navi 21
Tahiti
CoresDifferent
5120
2048
TMUsDifferent
320
128
ROPsDifferent
128
32
Memory SizeDifferent
16 GB
3 GB
Memory TypeDifferent
GDDR6
GDDR5
Bus WidthDifferent
256 bit
384 bit

Graphics Processor

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 280X
GPU NameDifferent
Navi 21
Tahiti
GPU VariantDifferent
Navi 21 XTX(215-121000167)
Tahiti XTL(215-0821065)
ArchitectureDifferent
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process SizeDifferent
7 nm
28 nm
TransistorsDifferent
26,800 million
4,313 million
DensityDifferent
51.5M / mm²
12.3M / mm²
Die SizeDifferent
520 mm²
352 mm²
Chip PackageDifferent
BGA-2425
N/A

Graphics Card

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 280X
Release DateDifferent
Oct 28th, 2020
Oct 8th, 2013
AvailabilityDifferent
Dec 8th, 2020
N/A
GenerationDifferent
Navi II(RX 6000)
Volcanic Islands(R9 200)
PredecessorDifferent
Navi
Sea Islands
SuccessorDifferent
Navi III
Pirate Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
999 USD
299 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x16
PCIe 3.0 x16
ReviewsDifferent
33 in our database
105 in our database

Clock Speeds

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 280X
Base ClockDifferent
1825 MHz
850 MHz
Game ClockDifferent
2015 MHz
N/A
Boost ClockDifferent
2250 MHz
1000 MHz
Memory ClockDifferent
2000 MHz16 Gbps effective
1500 MHz6 Gbps effective

Memory

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 280X
Memory SizeDifferent
16 GB
3 GB
Memory TypeDifferent
GDDR6
GDDR5
Memory BusDifferent
256 bit
384 bit
BandwidthDifferent
512.0 GB/s
288.0 GB/s

Render Config

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 280X
Shading UnitsDifferent
5120
2048
TMUsDifferent
320
128
ROPsDifferent
128
32
Compute UnitsDifferent
80
32
RT CoresDifferent
80
N/A
L0 CacheDifferent
32 KB per WGP
N/A
L1 CacheDifferent
128 KB per Array
16 KB (per CU)
L2 CacheDifferent
4 MB
768 KB
L3 CacheDifferent
128 MB
N/A

Theoretical Performance

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 280X
Pixel RateDifferent
288.0 GPixel/s
32.00 GPixel/s
Texture RateDifferent
720.0 GTexel/s
128.0 GTexel/s
FP16 (half)Different
46.08 TFLOPS (2:1)
N/A
FP32 (float)Different
23.04 TFLOPS
4.096 TFLOPS
FP64 (double)Different
1,440.0 GFLOPS (1:16)
1,024.0 GFLOPS (1:4)

Board Design

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 280X
Slot WidthDifferent
Triple-slot
Dual-slot
LengthDifferent
267 mm10.5 inches
275 mm10.8 inches
HeightDifferent
120 mm4.7 inches
109 mm4.3 inches
WidthDifferent
50 mm2 inches
36 mm1.4 inches
TDPDifferent
300 W
250 W
Suggested PSUDifferent
700 W
600 W
OutputsDifferent
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power ConnectorsDifferent
2x 8-pin
1x 6-pin + 1x 8-pin
Part NumberDifferent
102-D412
N/A
Board NumberDifferent
109-D412A7-00_03
C386

Graphics Features

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 280X
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

More Comparisons with AMD Radeon RX 6900 XT

Compare AMD Radeon RX 6900 XT with other GPUs of similar performance

AMD Radeon RX 6900 XT vs GeForce RTX 4070 Ti

GeForce RTX 4070 Ti Performance113%

GeForce RTX 4070 Ti is 13% faster than AMD Radeon RX 6900 XT

Compare Detailed Specs

AMD Radeon RX 6900 XT vs GeForce RTX 5070

GeForce RTX 5070 Performance112%

GeForce RTX 5070 is 12% faster than AMD Radeon RX 6900 XT

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AMD Radeon RX 6900 XT vs GeForce RTX 3090

GeForce RTX 3090 Performance111%

GeForce RTX 3090 is 11% faster than AMD Radeon RX 6900 XT

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AMD Radeon RX 6900 XT vs GeForce RTX 3080 Ti

GeForce RTX 3080 Ti Performance109%

GeForce RTX 3080 Ti is 9% faster than AMD Radeon RX 6900 XT

Compare Detailed Specs

AMD Radeon RX 6900 XT vs GeForce RTX 4070 SUPER

GeForce RTX 4070 SUPER Performance106%

GeForce RTX 4070 SUPER is 6% faster than AMD Radeon RX 6900 XT

Compare Detailed Specs

AMD Radeon RX 6900 XT vs Radeon RX 7900 GRE

Radeon RX 7900 GRE Performance104%

Radeon RX 7900 GRE is 4% faster than AMD Radeon RX 6900 XT

Compare Detailed Specs

More Comparisons with AMD Radeon R9 280X

Compare AMD Radeon R9 280X with other GPUs of similar performance

AMD Radeon R9 280X vs GeForce GTX 1650

GeForce GTX 1650 Performance116%

GeForce GTX 1650 is 16% faster than AMD Radeon R9 280X

Compare Detailed Specs

AMD Radeon R9 280X vs Radeon RX 6400

Radeon RX 6400 Performance114%

Radeon RX 6400 is 14% faster than AMD Radeon R9 280X

Compare Detailed Specs

AMD Radeon R9 280X vs Arc A380

Arc A380 Performance113%

Arc A380 is 13% faster than AMD Radeon R9 280X

Compare Detailed Specs

AMD Radeon R9 280X vs GeForce GTX 780

GeForce GTX 780 Performance112%

GeForce GTX 780 is 12% faster than AMD Radeon R9 280X

Compare Detailed Specs

AMD Radeon R9 280X vs Radeon HD 7970 GHz Edition

Radeon HD 7970 GHz Edition Performance102%

Radeon HD 7970 GHz Edition is 2% faster than AMD Radeon R9 280X

Compare Detailed Specs

AMD Radeon R9 280X vs GeForce GTX 590

GeForce GTX 590 Performance101%

GeForce GTX 590 is 1% faster than AMD Radeon R9 280X

Compare Detailed Specs
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