HD 7990 vs R9 390 X2

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General info

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

Place in performance rankingnot rated332
Place by popularitynot in top-100not in top-100
Value for moneyno data1.61
ArchitectureGCN 2.0 (2013−2017)GCN 1.0 (2012−2020)
GPU code nameGrenadaMalta
Market segmentDesktopDesktop
Release date3 September 2015 (8 years old)24 April 2013 (10 years old)
Launch price (MSRP)$1,399 $999
Current price$225 (0.2x MSRP)$486 (0.5x 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 cores25602048
Core clock speed1000 MHz950 MHz
Boost clock speedno data1000 MHz
Number of transistors6,200 million4,313 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)580 Watt375 Watt
Texture fill rate160.0128.0
Floating-point performance2x 5,120 gflops2x 4,096 gflops

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 3.0 x16PCIe 3.0 x16
Lengthno data307 mm
Width3-slot2-slot
Supplementary power connectors4x 8-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 typeGDDR5GDDR5
Maximum RAM amount8 GB3 GB
Memory bus width512 Bit384 Bit
Memory clock speed5400 MHz6000 MHz
Memory bandwidth345.6 GB/s288.0 GB/s

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 Connectors2x DVI, 1x HDMI, 1x DisplayPort1x DVI, 4x mini-DisplayPort
HDMI+no data

API support

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

DirectX12 (12_0)12 (11_1)
Shader Model6.35.1
OpenGL4.64.6
OpenCL2.01.2
Vulkan1.2.1311.2.131

Advantages and disadvantages


Recency 3 September 2015 24 April 2013
Cost $1399 $999
Maximum RAM amount 8 GB 3 GB
Power consumption (TDP) 580 Watt 375 Watt

We couldn't decide between Radeon R9 390 X2 and Radeon HD 7990. 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

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AMD Radeon R9 390 X2
Radeon R9 390 X2
AMD Radeon HD 7990
Radeon HD 7990

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2.9 31 vote

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4.2 49 votes

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Questions and comments

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