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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon RX 6800 XT

512%
512%

AMD Radeon HD 7970 GHz Edition

20%
20%
AMD Radeon RX 6800 XT is approximately 492% faster

Technical Specifications

SpecificationAMD Radeon RX 6800 XTAMD Radeon HD 7970 GHz Edition
Graphics ProcessorDifferent
Navi 21
Tahiti
CoresDifferent
4608
2048
TMUsDifferent
288
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 6800 XTAMD Radeon HD 7970 GHz Edition
GPU NameDifferent
Navi 21
Tahiti
GPU VariantDifferent
Navi 21 XT(215-121000177)
Tahiti XT2(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 6800 XTAMD Radeon HD 7970 GHz Edition
Release DateDifferent
Oct 28th, 2020
Jun 22nd, 2012
AvailabilityDifferent
Nov 18th, 2020
N/A
GenerationDifferent
Navi II(RX 6000)
Southern Islands(HD 7900)
PredecessorDifferent
Navi
Northern Islands
SuccessorDifferent
Navi III
Sea Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
649 USD
499 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x16
PCIe 3.0 x16
ReviewsDifferent
57 in our database
191 in our database

Clock Speeds

FeatureAMD Radeon RX 6800 XTAMD Radeon HD 7970 GHz Edition
Base ClockDifferent
1825 MHz
1000 MHz
Game ClockDifferent
2015 MHz
N/A
Boost ClockDifferent
2250 MHz
1050 MHz
Memory ClockDifferent
2000 MHz16 Gbps effective
1500 MHz6 Gbps effective

Memory

FeatureAMD Radeon RX 6800 XTAMD Radeon HD 7970 GHz Edition
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 6800 XTAMD Radeon HD 7970 GHz Edition
Shading UnitsDifferent
4608
2048
TMUsDifferent
288
128
ROPsDifferent
128
32
Compute UnitsDifferent
72
32
RT CoresDifferent
72
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 6800 XTAMD Radeon HD 7970 GHz Edition
Pixel RateDifferent
288.0 GPixel/s
33.60 GPixel/s
Texture RateDifferent
648.0 GTexel/s
134.4 GTexel/s
FP16 (half)Different
41.47 TFLOPS (2:1)
N/A
FP32 (float)Different
20.74 TFLOPS
4.301 TFLOPS
FP64 (double)Different
1,296.0 GFLOPS (1:16)
1,075.2 GFLOPS (1:4)

Board Design

FeatureAMD Radeon RX 6800 XTAMD Radeon HD 7970 GHz Edition
Slot Width
Dual-slot
Dual-slot
LengthDifferent
267 mm10.5 inches
275 mm10.8 inches
HeightDifferent
120 mm4.7 inches
111 mm4.4 inches
WidthDifferent
50 mm2 inches
38 mm1.5 inches
TDP
300 W
300 W
Suggested PSU
700 W
700 W
OutputsDifferent
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power ConnectorsDifferent
2x 8-pin
1x 6-pin + 1x 8-pin
Part NumberDifferent
102-D41205
N/A
Board NumberDifferent
109-D412A7-00_03
109-C38637-00

Graphics Features

FeatureAMD Radeon RX 6800 XTAMD Radeon HD 7970 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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