Radeon R7 M340 vs R9 390 X2

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Primary details

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

Place in the rankingnot rated997
Place by popularitynot in top-100not in top-100
ArchitectureGCN 2.0 (2013−2017)GCN 3.0 (2014−2019)
GPU code nameGrenadaMeso
Market segmentDesktopLaptop
Release date3 September 2015 (10 years ago)5 May 2015 (10 years ago)
Launch price (MSRP)$1,399 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 cores2560 ×2320
Compute unitsno data6
Core clock speed1000 MHz943 MHz
Boost clock speedno data1021 MHz
Number of transistors6,200 million1,550 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)580 Wattno data
Texture fill rate160.0 ×220.42
Floating-point processing power5.12 TFLOPS ×20.6534 TFLOPS
ROPs64 ×28
TMUs160 ×220
L1 Cache640 KB80 KB
L2 Cache1024 KB128 KB

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).

Bus supportno dataPCIe 3.0
InterfacePCIe 3.0 x16PCIe 3.0 x8
Width3-slotno data
Supplementary power connectors4x 8-pinNone

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 typeGDDR5DDR3
Maximum RAM amount8 GB ×24 GB
Memory bus width512 Bit ×2128 Bit
Memory clock speed1350 MHz1000 MHz
Memory bandwidth345.6 GB/s ×216 GB/s
Shared memory--

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors2x DVI, 1x HDMI, 1x DisplayPortNo outputs
Eyefinity-+
HDMI+-

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

FreeSync-+
HD3D-+
PowerTune-+
DualGraphics-+
ZeroCore-+
Switchable graphics-+

API and SDK support

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

DirectX12 (12_0)DirectX® 12
Shader Model6.36.0
OpenGL4.64.4
OpenCL2.0Not Listed
Vulkan1.2.131+
Mantle-+

Pros & cons summary


Recency 3 September 2015 5 May 2015
Maximum RAM amount 8 GB 4 GB

R9 390 X2 has an age advantage of 3 months, and a 100% higher maximum VRAM amount.

We couldn't decide between Radeon R9 390 X2 and Radeon R7 M340. We've got no test results to judge.

Be aware that Radeon R9 390 X2 is a desktop graphics card while Radeon R7 M340 is a notebook one.

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AMD Radeon R9 390 X2
Radeon R9 390 X2
AMD Radeon R7 M340
Radeon R7 M340

Other comparisons

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Community ratings

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