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AMD Radeon RX 7900 XT Phantom Gaming 20GB OC
XFX Radeon RX 6900 XT

AMD Radeon RX 7900 XT Phantom Gaming 20GB OC vs XFX Radeon RX 6900 XT. Specifications, performance, tests

Overall score
star star star star star
Released
Q4/2022
AMD Radeon RX 7900 XT Phantom Gaming 20GB OC
AMD Radeon RX 7900 XT Phantom Gaming 20GB OC
Released
Q1/2021
Overall score
star star star star star
XFX Radeon RX 6900 XT
XFX Radeon RX 6900 XT

What's the best choice AMD Radeon RX 7900 XT Phantom Gaming 20GB OC or XFX Radeon RX 6900 XT? Which graphics card is faster?

We have prepared a comparison to help you choose the best graphics card. Compare their specifications and benchmarks.

AMD Radeon RX 7900 XT Phantom Gaming 20GB OC has a maximum frequency of 1.500 GHz. Memory size 20 GB. Memory type GDDR6. Released in Q4/2022.

XFX Radeon RX 6900 XT has a maximum frequency of 1.825 GHz. Memory size 16 GB. Memory type GDDR6. Released in Q1/2021.

Differences

  • Place in the overall ranking

    (based on several benchmarks)

    17 left arrow score
  • More memory

    20% more memory

    20 GB left arrow 16 GB

Positions in all rankings

Common positions AMD Radeon RX 7900 XT Phantom Gaming 20GB OC GPU in popular benchmarks, for comparison with other models.

  • FP32 Performance (Single-precision TFLOPS)
    17 place
  • Shadow of the Tomb Raider
    34 place
  • 3DMark Benchmark
    22 place
  • Place in the overall ranking

    (based on several benchmarks)

    362 left arrow score
  • Higher clock speed

    Around 18% better clock speed

    1.825 GHz left arrow 1.500 GHz

Positions in all rankings

Common positions XFX Radeon RX 6900 XT GPU in popular benchmarks, for comparison with other models.

  • FP32 Performance (Single-precision TFLOPS)
    360 place
  • Battlefield 5
    218 place
  • Shadow of the Tomb Raider
    364 place
  • Crypto-Mining Ethereum Hashrate (MH/s)
    364 place
  • Crypto-Mining Ergo Hashrate (MH/s)
    696 place
  • Crypto-Mining Ravencoin Hashrate (MH/s)
    623 place
  • 3DMark Benchmark
    238 place
  • Crypto-Mining Vertcoin Hashrate (MH/s)
    398 place

Specifications

Technical data
AMD Radeon RX 7900 XT Phantom Gaming 20GB OC AMD Radeon RX 7900 XT Phantom Gaming 20GB OC
XFX Radeon RX 6900 XT XFX Radeon RX 6900 XT
General info

Comparison of basic technical data of graphics cards AMD Radeon RX 7900 XT Phantom Gaming 20GB OC and XFX Radeon RX 6900 XT, chip, information processing units.

  • Based on
    AMD Radeon RX 7900 XT left arrow AMD Radeon RX 6900 XT
  • GPU Chip
    Navi 31 (RDNA 3) left arrow Navi 21
  • Execution units
    84 left arrow 80
  • Shader
    5376 left arrow 5120
  • Render Output Units
    192 left arrow 128
  • Texture Units
    336 left arrow 320
Memory settings

Comparison of the amount of memory on board graphics cards. The more the better.

  • Memory Size
    20 GB left arrow 16 GB
  • Memory Type
    GDDR6 left arrow GDDR6
  • Memory Speed
    20 Gbps left arrow 2 GHz
  • Memory Bandwith
    800 GB/s left arrow 512 GB/s
  • Memory Interface
    320 bit left arrow 256 bit
Clock frequency

Let's compare the memory frequency of graphics cards AMD Radeon RX 7900 XT Phantom Gaming 20GB OC and XFX Radeon RX 6900 XT. The higher the better.

  • Base Clock
    1.500 GHz left arrow 1.825 GHz
  • Boost Clock
    2.450 GHz+ 2 % left arrow 2.250 GHz
  • Avg (Game) Clock
    2.075 GHz left arrow 2.015 GHz
  • Overclocking
    Yes left arrow Yes
Thermal Management

Connectors, the number of thermal watts emitted in normal mode and at overclocking.

  • TDP
    300 W left arrow 300 W
  • TDP (up)
    -- left arrow 345 W
  • Tjunction max
    -- left arrow --
  • PCIe-Power
    2 x 8-Pin left arrow 2 x 8-Pin
Cooler & Fans type

Types and sizes of coolers for graphics card cooling system AMD Radeon RX 7900 XT Phantom Gaming 20GB OC and XFX Radeon RX 6900 XT.

  • Fan-Type
    Axial left arrow Axial
  • Fan 1
    3 x 100 mm left arrow 3 x 80 mm
  • Fan 2
    -- left arrow --
  • Cooler-Type
    Air cooling left arrow Air cooling
  • Noise (Idle)
    0 dB / Silent left arrow 0 dB / Silent
  • Noise (Load)
    -- left arrow --
Interfaces

Connectivity and connections.

  • Max. Displays
    4 left arrow 4
  • HDCP-Version
    2.3 left arrow 2.3
  • HDMI Ports
    1x HDMI v2.1 left arrow 1x HDMI v2.1
  • DP Ports
    3x DP v2.1 left arrow 2x DP v1.4a
  • DVI Ports
    -- left arrow --
  • VGA Ports
    -- left arrow --
  • USB-C Ports
    -- left arrow 1
Technical data

Technical data that is used to its full potential in computer games.

  • Max. resolution
    7680x4320 left arrow 7680x4320
  • DirectX
    12_2 (Ultimate) left arrow 12_2
  • Raytracing
    Yes left arrow Yes
  • DLSS / FSR
    Yes left arrow No
  • LED
    Addressable LED left arrow Non addressable LED
Supported Video Codecs

Built-in support for video and image compression standards.

  • h264
    Decode / Encode left arrow Decode / Encode
  • h265 / HEVC
    Decode / Encode left arrow Decode / Encode
  • VP8
    Decode / Encode left arrow Decode / Encode
  • VP9
    Decode / Encode left arrow Decode / Encode
  • AV1
    Decode / Encode left arrow Decode
Dimensions

The difference in size, weight and slot of the compared devices

  • Length
    330 mm left arrow 237 mm
  • Height
    140 mm left arrow 120 mm
  • Width
    58 mm left arrow 40 mm
  • Width (Slots)
    3 PCIe-Slots left arrow 2 PCIe-Slots
  • Weight
    1450 g left arrow --
More information

Comparison of interfaces and release dates for GPU XFX Radeon RX 6900 XT and AMD Radeon RX 7900 XT Phantom Gaming 20GB OC.

  • GPU Interface
    PCIe 4 x 16 left arrow PCIe 4.0 x 16
  • Release date
    Q4/2022 left arrow Q1/2021
  • Release price
    -- left arrow 1,099 $
  • Structure size
    5 nm left arrow 7 nm
  • Part-no
    RX7900XT PG 20GO left arrow RX-69TMATFD8
  • Documents
    data sheet left arrow data sheet

Benchmarks

Performance tests GPUs

Based on the results of several popular benchmarks, you can more accurately estimate the performance difference between AMD Radeon RX 7900 XT Phantom Gaming 20GB OC and XFX Radeon RX 6900 XT.

Compare synthetic benchmarks and choose the best graphics card for you!

FP32 Performance (Single-precision TFLOPS)
Benchmark FP32 is a 32-bit floating point calculation for the GPU which is required for 3D gaming
52.68
AMD Radeon RX 7900 XT Phantom Gaming 20GB OC
23.04
XFX Radeon RX 6900 XT
3DMark Benchmark
3DMark is designed for gamers, overclockers and system builders who want to get the most out of their hardware
25063
AMD Radeon RX 7900 XT Phantom Gaming 20GB OC
18511
XFX Radeon RX 6900 XT
Shadow of the Tomb Raider
Shadow of the Tomb Raider has a built-in benchmark, based on the Crystal Dynamics Foundation engine
99 fps (avg)
AMD Radeon RX 7900 XT Phantom Gaming 20GB OC
76 fps (avg)
XFX Radeon RX 6900 XT
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