Radeon RX 6900 XT vs HD 7950 Boost

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot rated23
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data29.88
Power efficiencyno data15.86
ArchitectureGCN 1.0 (2011−2020)RDNA 2.0 (2020−2024)
GPU code nameTahitiNavi 21
Market segmentDesktopDesktop
Release date22 June 2012 (12 years ago)28 October 2020 (4 years ago)
Launch price (MSRP)$449 $999

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores17925120
Core clock speed850 MHz1825 MHz
Boost clock speed925 MHz2250 MHz
Number of transistors4,313 million26,800 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)200 Watt300 Watt
Texture fill rate103.6720.0
Floating-point processing power3.315 TFLOPS23.04 TFLOPS
ROPs32128
TMUs112320
Ray Tracing Coresno data80

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 3.0 x16PCIe 4.0 x16
Length274 mm267 mm
Width2-slot3-slot
Supplementary power connectors2x 6-pin2x 8-pin

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5GDDR6
Maximum RAM amount3 GB16 GB
Memory bus width384 Bit256 Bit
Memory clock speed1250 MHz2000 MHz
Memory bandwidth240.0 GB/s512.0 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x DVI, 1x HDMI, 2x mini-DisplayPort1x HDMI, 2x DisplayPort, 1x USB Type-C
HDMI++

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (11_1)12 Ultimate (12_2)
Shader Model5.16.5
OpenGL4.64.6
OpenCL1.22.1
Vulkan1.2.1311.2

Pros & cons summary


Recency 22 June 2012 28 October 2020
Maximum RAM amount 3 GB 16 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 200 Watt 300 Watt

HD 7950 Boost has 50% lower power consumption.

RX 6900 XT, on the other hand, has an age advantage of 8 years, a 433.3% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between Radeon HD 7950 Boost and Radeon RX 6900 XT. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon HD 7950 Boost
Radeon HD 7950 Boost
AMD Radeon RX 6900 XT
Radeon RX 6900 XT

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Community ratings

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4.5 13 votes

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Questions & comments

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