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GPU Comparison

Side-by-side comparison of specifications and performance

AMD Radeon RX 7900 XT

AMD Radeon RX 7900 XT

AMD Radeon HD 6450

AMD Radeon HD 6450

Performance Comparison

AMD Radeon RX 7900 XT

11181%
11181%

AMD Radeon HD 6450

1%
1%
AMD Radeon RX 7900 XT is approximately 11180% faster

Technical Specifications

SpecificationAMD Radeon RX 7900 XTAMD Radeon HD 6450
Graphics ProcessorDifferent
Navi 31
Caicos
CoresDifferent
5376
160
TMUsDifferent
336
8
ROPsDifferent
192
4
Memory SizeDifferent
20 GB
512 MB
Memory TypeDifferent
GDDR6
GDDR3
Bus WidthDifferent
320 bit
64 bit

Graphics Processor

FeatureAMD Radeon RX 7900 XTAMD Radeon HD 6450
GPU NameDifferent
Navi 31
Caicos
CodenameDifferent
Plum Bonito
N/A
GPU VariantDifferent
Navi 31 XT(215-145000156)
Caicos PRO
ArchitectureDifferent
RDNA 3.0
TeraScale 2
Foundry
TSMC
TSMC
Process SizeDifferent
5 nm
40 nm
MCD ProcessDifferent
6 nm
N/A
Process TypeDifferent
N5 / N6 FinFET
N/A
TransistorsDifferent
57,700 million
370 million
GCD TransistorsDifferent
45,400 million
N/A
MCD TransistorsDifferent
2,050 million x6
N/A
DensityDifferent
109.1M / mm²
5.5M / mm²
GCD DensityDifferent
150.2M / mm²
N/A
MCD DensityDifferent
54.64M / mm²
N/A
Die SizeDifferent
529 mm²
67 mm²
GCD Die SizeDifferent
304.35 mm²
N/A
MCD Die SizeDifferent
37.52 mm² x6
N/A
Chip PackageDifferent
MCM
FCBGA-631

Graphics Card

FeatureAMD Radeon RX 7900 XTAMD Radeon HD 6450
Release DateDifferent
Nov 3rd, 2022
Apr 7th, 2011
AvailabilityDifferent
Dec 13th, 2022
N/A
GenerationDifferent
Navi III(RX 7000)
Northern Islands(HD 6400)
PredecessorDifferent
Navi II
Evergreen
SuccessorDifferent
Navi IV
Southern Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
899 USD
55 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x16
PCIe 2.0 x16
ReviewsDifferent
23 in our database
14 in our database

Clock Speeds

FeatureAMD Radeon RX 7900 XTAMD Radeon HD 6450
Base ClockDifferent
1387 MHz
N/A
Shader ClockDifferent
2025 MHz
N/A
Game ClockDifferent
2025 MHz
N/A
Boost ClockDifferent
2394 MHz
N/A
Memory ClockDifferent
2500 MHz20 Gbps effective
500 MHz1000 Mbps effective
GPU ClockDifferent
N/A
625 MHz

Memory

FeatureAMD Radeon RX 7900 XTAMD Radeon HD 6450
Memory SizeDifferent
20 GB
512 MB
Memory TypeDifferent
GDDR6
GDDR3
Memory BusDifferent
320 bit
64 bit
BandwidthDifferent
800.0 GB/s
8.000 GB/s

Render Config

FeatureAMD Radeon RX 7900 XTAMD Radeon HD 6450
Shading UnitsDifferent
5376
160
TMUsDifferent
336
8
ROPsDifferent
192
4
Compute UnitsDifferent
84
2
Matrix CoresDifferent
168
N/A
RT CoresDifferent
84
N/A
L0 CacheDifferent
64 KB per WGP
N/A
L1 CacheDifferent
256 KB per Array
8 KB (per CU)
L2 CacheDifferent
6 MB
128 KB
L3 CacheDifferent
80 MB
N/A

Theoretical Performance

FeatureAMD Radeon RX 7900 XTAMD Radeon HD 6450
Pixel RateDifferent
459.6 GPixel/s
2.500 GPixel/s
Texture RateDifferent
804.4 GTexel/s
5.000 GTexel/s
FP16 (half)Different
103.0 TFLOPS (2:1)
N/A
FP32 (float)Different
51.48 TFLOPS
200.0 GFLOPS
FP64 (double)Different
1.609 TFLOPS (1:32)
N/A

Board Design

FeatureAMD Radeon RX 7900 XTAMD Radeon HD 6450
Slot WidthDifferent
Dual-slot
Single-slot
LengthDifferent
276 mm10.9 inches
168 mm6.6 inches
HeightDifferent
110 mm4.3 inches
N/A
WidthDifferent
51 mm2 inches
N/A
TDPDifferent
300 W
18 W
Suggested PSUDifferent
700 W
200 W
OutputsDifferent
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
1x DVI1x HDMI 1.3a1x VGA
Power ConnectorsDifferent
2x 8-pin
None
Board NumberDifferent
109-D704A7-00_02
109-C26037-00A

Graphics Features

FeatureAMD Radeon RX 7900 XTAMD Radeon HD 6450
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
67
Detailed Features

More Comparisons with AMD Radeon RX 7900 XT

Compare AMD Radeon RX 7900 XT with other GPUs of similar performance

AMD Radeon RX 7900 XT vs GeForce RTX 4080 SUPER

GeForce RTX 4080 SUPER Performance117%

GeForce RTX 4080 SUPER is 17% faster than AMD Radeon RX 7900 XT

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AMD Radeon RX 7900 XT vs GeForce RTX 4080

GeForce RTX 4080 Performance116%

GeForce RTX 4080 is 16% faster than AMD Radeon RX 7900 XT

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AMD Radeon RX 7900 XT vs Radeon RX 7900 XTX

Radeon RX 7900 XTX Performance116%

Radeon RX 7900 XTX is 16% faster than AMD Radeon RX 7900 XT

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AMD Radeon RX 7900 XT vs GeForce RTX 5070 Ti

GeForce RTX 5070 Ti Performance114%

GeForce RTX 5070 Ti is 14% faster than AMD Radeon RX 7900 XT

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AMD Radeon RX 7900 XT vs Radeon RX 9070 XT

Radeon RX 9070 XT Performance109%

Radeon RX 9070 XT is 9% faster than AMD Radeon RX 7900 XT

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AMD Radeon RX 7900 XT vs Radeon RX 7900 XT

Radeon RX 7900 XT Performance100%

Radeon RX 7900 XT is 0% slower than AMD Radeon RX 7900 XT

Compare Detailed Specs

More Comparisons with AMD Radeon HD 6450

Compare AMD Radeon HD 6450 with other GPUs of similar performance

AMD Radeon HD 6450 vs GeForce GT 520

GeForce GT 520 Performance106%

GeForce GT 520 is 6% faster than AMD Radeon HD 6450

Compare Detailed Specs

AMD Radeon HD 6450 vs Radeon HD 6450

Radeon HD 6450 Performance100%

Radeon HD 6450 is 0% slower than AMD Radeon HD 6450

Compare Detailed Specs

AMD Radeon HD 6450 vs Radeon HD 5450

Radeon HD 5450 Performance85%

Radeon HD 5450 is 15% slower than AMD Radeon HD 6450

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AMD Radeon HD 6450 vs Radeon HD 6450

Radeon HD 6450 Performance100%

Radeon HD 6450 is 0% slower than AMD Radeon HD 6450

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AMD Radeon HD 6450 vs Radeon HD 6450

Radeon HD 6450 Performance100%

Radeon HD 6450 is 0% slower than AMD Radeon HD 6450

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