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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 HD 7850

AMD Radeon HD 7850

Performance Comparison

AMD Radeon RX 6900 XT

937%
937%

AMD Radeon HD 7850

11%
11%
AMD Radeon RX 6900 XT is approximately 926% faster

Technical Specifications

SpecificationAMD Radeon RX 6900 XTAMD Radeon HD 7850
Graphics ProcessorDifferent
Navi 21
Pitcairn
CoresDifferent
5120
1024
TMUsDifferent
320
64
ROPsDifferent
128
32
Memory SizeDifferent
16 GB
2 GB
Memory TypeDifferent
GDDR6
GDDR5
Bus Width
256 bit
256 bit

Graphics Processor

FeatureAMD Radeon RX 6900 XTAMD Radeon HD 7850
GPU NameDifferent
Navi 21
Pitcairn
GPU VariantDifferent
Navi 21 XTX(215-121000167)
Pitcairn PRO(215-0828062)
ArchitectureDifferent
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process SizeDifferent
7 nm
28 nm
TransistorsDifferent
26,800 million
2,800 million
DensityDifferent
51.5M / mm²
13.2M / mm²
Die SizeDifferent
520 mm²
212 mm²
Chip PackageDifferent
BGA-2425
FCBGA-1737

Graphics Card

FeatureAMD Radeon RX 6900 XTAMD Radeon HD 7850
Release DateDifferent
Oct 28th, 2020
Mar 5th, 2012
AvailabilityDifferent
Dec 8th, 2020
N/A
GenerationDifferent
Navi II(RX 6000)
Southern Islands(HD 7800)
PredecessorDifferent
Navi
Northern Islands
SuccessorDifferent
Navi III
Sea Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
999 USD
249 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x16
PCIe 3.0 x16
ReviewsDifferent
33 in our database
71 in our database

Clock Speeds

FeatureAMD Radeon RX 6900 XTAMD Radeon HD 7850
Base ClockDifferent
1825 MHz
N/A
Game ClockDifferent
2015 MHz
N/A
Boost ClockDifferent
2250 MHz
N/A
Memory ClockDifferent
2000 MHz16 Gbps effective
1200 MHz4.8 Gbps effective
GPU ClockDifferent
N/A
860 MHz

Memory

FeatureAMD Radeon RX 6900 XTAMD Radeon HD 7850
Memory SizeDifferent
16 GB
2 GB
Memory TypeDifferent
GDDR6
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
512.0 GB/s
153.6 GB/s

Render Config

FeatureAMD Radeon RX 6900 XTAMD Radeon HD 7850
Shading UnitsDifferent
5120
1024
TMUsDifferent
320
64
ROPsDifferent
128
32
Compute UnitsDifferent
80
16
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
512 KB
L3 CacheDifferent
128 MB
N/A

Theoretical Performance

FeatureAMD Radeon RX 6900 XTAMD Radeon HD 7850
Pixel RateDifferent
288.0 GPixel/s
27.52 GPixel/s
Texture RateDifferent
720.0 GTexel/s
55.04 GTexel/s
FP16 (half)Different
46.08 TFLOPS (2:1)
N/A
FP32 (float)Different
23.04 TFLOPS
1.761 TFLOPS
FP64 (double)Different
1,440.0 GFLOPS (1:16)
110.1 GFLOPS (1:16)

Board Design

FeatureAMD Radeon RX 6900 XTAMD Radeon HD 7850
Slot WidthDifferent
Triple-slot
Dual-slot
LengthDifferent
267 mm10.5 inches
210 mm8.3 inches
HeightDifferent
120 mm4.7 inches
N/A
WidthDifferent
50 mm2 inches
N/A
TDPDifferent
300 W
130 W
Suggested PSUDifferent
700 W
300 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
Part NumberDifferent
102-D412
N/A
Board NumberDifferent
109-D412A7-00_03
109-C40147-00, 109-C40337-00A

Graphics Features

FeatureAMD Radeon RX 6900 XTAMD Radeon HD 7850
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
57
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

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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

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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

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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 HD 7850

Compare AMD Radeon HD 7850 with other GPUs of similar performance

AMD Radeon HD 7850 vs GeForce GTX 950

GeForce GTX 950 Performance120%

GeForce GTX 950 is 20% faster than AMD Radeon HD 7850

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AMD Radeon HD 7850 vs Radeon RX 560

Radeon RX 560 Performance113%

Radeon RX 560 is 13% faster than AMD Radeon HD 7850

Compare Detailed Specs

AMD Radeon HD 7850 vs GeForce GTX 570

GeForce GTX 570 Performance111%

GeForce GTX 570 is 11% faster than AMD Radeon HD 7850

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AMD Radeon HD 7850 vs GeForce GTX 660

GeForce GTX 660 Performance111%

GeForce GTX 660 is 11% faster than AMD Radeon HD 7850

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AMD Radeon HD 7850 vs Radeon R7 370

Radeon R7 370 Performance110%

Radeon R7 370 is 10% faster than AMD Radeon HD 7850

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AMD Radeon HD 7850 vs Radeon HD 6970

Radeon HD 6970 Performance106%

Radeon HD 6970 is 6% faster than AMD Radeon HD 7850

Compare Detailed Specs
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