AMD RX 6900 XT vs ATI HD 4870 Mac Edition

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General info

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

Place in performance rankingnot rated18
Place by popularitynot in top-100not in top-100
Value for moneyno data18.51
ArchitectureTeraScale (2005−2013)Navi / RDNA2 (2020−2022)
GPU code nameRV770Navi 21
Market segmentDesktopDesktop
Release date6 January 2009 (15 years old)8 December 2020 (3 years old)
Launch price (MSRP)no data$999
Current price$227 $957 (1x MSRP)
Value for money

Performance to price ratio. The higher, the better.

no data

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores8005120
Core clock speed750 MHz1825 MHz
Boost clock speedno data2250 MHz
Number of transistors956 million26,800 million
Manufacturing process technology55 nm7 nm
Power consumption (TDP)150 Watt300 Watt
Texture fill rate30.00720.0
Floating-point performance1,200.0 gflopsno data

Size and 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 2.0 x16PCIe 4.0 x16
Length250 mm267 mm
Width2-slot3-slot
Supplementary power connectors2x 6-pin2x 8-pin

Memory

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 amount512 MB16 GB
Memory bus width256 Bit256 Bit
Memory clock speed3400 MHz16000 MHz
Memory bandwidth108.8 GB/s512.0 GB/s
Shared memoryno data-

Video outputs and ports

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 mini-DisplayPort1x HDMI, 2x DisplayPort, 1x USB Type-C
HDMIno data+

API support

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

DirectX10.1 (10_1)12 Ultimate (12_2)
Shader Model4.16.5
OpenGL3.34.6
OpenCL1.12.1
VulkanN/A1.2

Advantages and disadvantages


Recency 6 January 2009 8 December 2020
Maximum RAM amount 512 MB 16 GB
Chip lithography 55 nm 7 nm
Power consumption (TDP) 150 Watt 300 Watt

We couldn't decide between Radeon HD 4870 Mac Edition 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.

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


ATI Radeon HD 4870 Mac Edition
Radeon HD 4870 Mac Edition
AMD Radeon RX 6900 XT
Radeon RX 6900 XT

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5 1 vote

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4 3332 votes

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Questions and comments

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