AMD Radeon R9 295X2 vs R9 390

AMD Radeon R9 295X2
AMD Radeon R9 390

General info

Comparison of Radeon R9 295X2 and Radeon R9 390 architecture, market type and release date.
Place in performance rating
 
Value for money (0-100)
12.10
 
n/d
Architecture
GCN 2.0
 
GCN 2.0
Code name
Vesuvius
 
Grenada
Type
Desktop
 
Desktop
Design
reference
 
reference
Release date
29 April 2014
 
18 June 2015
Launch price (MSRP)
$1,499
 
$329
Price now
$1100
 
$499

Technical specs

Radeon R9 295X2 and Radeon R9 390's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon R9 295X2 and Radeon R9 390's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Pipelines
2x 2816
 
2560
Boost Clock
1018 MHz
 
1000 MHz
Transistor count
6,200 million
 
6,200 million
Manufacturing process technology
28 nm
 
28 nm
Power consumption (TDP)
500 Watt
 
275 Watt
Texture fill rate
2x 179.2 GTexel / s billion / sec
 
160.0 GTexel / s
Floating-point performance
2x 5,733 gflops
 
5,120 gflops

Compatibility, dimensions and requirements

Information on Radeon R9 295X2 and Radeon R9 390 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
Bus support
PCIe 2.1 x16
 
PCIe 3.0
Interface
PCIe 3.0 x16
 
PCIe 3.0 x16
Length
307 mm
 
275 mm
Supplementary power connectors
2 x 8-pin
 
1 x 6-pin, 1 x 8-pin
Bridgeless CrossFire
-
 
+

Memory

Parameters of memory installed on Radeon R9 295X2 and Radeon R9 390: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
GDDR5
 
GDDR5
High bandwidth memory (HBM)
n/d
 
-
Maximum RAM amount
8 GB
 
n/d
Memory bus width
2x 512 Bit
 
512 Bit
Memory clock speed
1250 MHz
 
1000 MHz
Memory bandwidth
640 GB / s
 
384 GB / s

Video outputs and ports

Types and number of video connectors present on Radeon R9 295X2 and Radeon R9 390.
Display Connectors
1x DVI, 4x mini-DisplayPort
 
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
+
 
+
Number of Eyefinity displays
n/d
 
6
HDMI
+
 
+
DisplayPort support
-
 
+

Technologies

Technological solutions and APIs supported by Radeon R9 295X2 and Radeon R9 390. You'll probably need this information if you need some particular technology for your purposes.
CrossFire
+
 
+
FreeSync
+
 
+
HD3D
+
 
-
LiquidVR
+
 
-
PowerTune
-
 
+
TressFX
+
 
-
TrueAudio
-
 
+
UVD
+
 
-
VCE
-
 
+
DDMA audio
+
 
+

API support

APIs supported by Radeon R9 295X2 and Radeon R9 390, sometimes including their particular versions.
DirectX
DirectX® 12
 
DirectX® 12
OpenGL
4.6
 
4.6
OpenCL
n/d
 
2.0
Vulkan
+
 
-
Mantle
-
 
+

Benchmark performance

Non-gaming benchmarks performance of Radeon R9 295X2 and Radeon R9 390. Note that overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

R9 295X2 39.96
R9 390 42.05 +5.2%

3DMark Fire Strike Graphics

R9 295X2 21270 +67.1%
R9 390 12730

Passmark

R9 295X2 7771
R9 390 8091 +4.1%

Mining hashrates

Cryptocurrency mining performance of Radeon R9 295X2 and Radeon R9 390. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
n/d
 
593 Mh/s
Decred / DCR (Decred)
n/d
 
0.95 Gh/s
Ethereum / ETH (DaggerHashimoto)
61.5 Mh/s +110.2%
 
29.26 Mh/s −110.2%
Monero / XMR (CryptoNight)
n/d
 
0.81 kh/s
Zcash / ZEC (Equihash)
n/d
 
380.03 Sol/s

Gaming performance

Let's see how good Radeon R9 295X2 and Radeon R9 390 are for gaming. Particular gaming benchmark results are measured in FPS.

Advantages of AMD Radeon R9 295X2

More pipelines (2816 vs 2560)
Higher memory bandwidth (640 vs 384 GB/s)
OpenGL® 4.3
OpenCL™
HD3D
LiquidVR
TressFX
UVD
Vulkan (a contemporary API for graphics acceleration, based on now-discontinued Mantle)

Advantages of AMD Radeon R9 390

5.2% faster in synthetic tests
Much newer (18 June 2015 vs 29 April 2014)
Cheaper ($329 vs $1499)
Less power hungry (275 vs 500 watts)
OpenGL® 4.5
Vulkan™
OpenCL™ 2.0
Bridgeless CrossFire
DisplayPort support
PowerTune (dynamically increases AMD GPU's voltage and frequency while there's still enough temperature headroom. Similar to NVIDIA GPU Boost)
TrueAudio
VCE

So, R9 295X2 or R9 390?

Technical City couldn't decide between AMD Radeon R9 295X2 and AMD Radeon R9 390. The differences in performance seem too small.
Should you still have questions on choice between Radeon R9 295X2 and Radeon R9 390, ask them in Comments section, and we shall answer.

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AMD Radeon R9 295X2
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Advices and comments

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