R9 380X vs HD 7990

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General info

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

Place in performance ranking330307
Place by popularitynot in top-100not in top-100
Value for money1.617.08
ArchitectureGCN 1.0 (2012−2020)GCN 3.0 (2014−2017)
GPU code nameMaltaAntigua
Market segmentDesktopDesktop
Designno datareference
Release date24 April 2013 (10 years old)19 November 2015 (8 years old)
Launch price (MSRP)$999 $229
Current price$486 (0.5x MSRP)$11.81 (0.1x MSRP)
Value for money

Performance to price ratio. The higher, the better.

R9 380X has 340% better value for money than HD 7990.

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 cores20482048
Compute unitsno data32
Core clock speed950 MHzno data
Boost clock speed1000 MHz970 MHz
Number of transistors4,313 million5,000 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)375 Watt190 Watt
Texture fill rate128.0124.2
Floating-point performance2x 4,096 gflops3,973 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).

Bus supportno dataPCIe 3.0
InterfacePCIe 3.0 x16PCIe 3.0 x16
Length307 mm221 mm
Width2-slot2-slot
Form factorno datafull height / full length
Supplementary power connectors2x 8-pin​2 x 6-pin
Bridgeless CrossFireno data1

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
High bandwidth memory (HBM)no data-
Maximum RAM amount3 GB4 GB
Memory bus width384 Bit256 Bit
Memory clock speed6000 MHz970 MHz
Memory bandwidth288.0 GB/s182.4 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 Connectors1x DVI, 4x mini-DisplayPort2x DVI, 1x HDMI, 1x DisplayPort
Eyefinityno data1
Number of Eyefinity displaysno data6
HDMIno data+
DisplayPort supportno data+

Technologies

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

AppAccelerationno data-
CrossFireno data1
Endurono data-
FRTCno data1
FreeSyncno data1
HD3Dno data+
LiquidVRno data1
PowerTuneno data+
TrueAudiono data+
ZeroCoreno data+
VCEno data+
DDMA audiono data+

API support

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

DirectX12 (11_1)DirectX® 12
Shader Model5.16.3
OpenGL4.64.5
OpenCL1.22.0
Vulkan1.2.131+
Mantleno data+

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

HD 7990
14.36

R9 380X outperforms HD 7990 by 12% in our combined benchmark results.


Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

HD 7990 5565
R9 380X 6229
+11.9%

R9 380X outperforms HD 7990 by 12% in Passmark.

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

Benchmark coverage: 14%

HD 7990 15540
+63.4%
R9 380X 9510

HD 7990 outperforms R9 380X by 63% in 3DMark Fire Strike Graphics.

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Advantages and disadvantages


Performance score 14.36 16.07
Recency 24 April 2013 19 November 2015
Cost $999 $229
Memory bus width 384 256
Maximum RAM amount 3 GB 4 GB
Memory bandwidth 288 182.4
Power consumption (TDP) 375 Watt 190 Watt

The Radeon R9 380X is our recommended choice as it beats the Radeon HD 7990 in performance tests.


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

Cast your own vote

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


AMD Radeon HD 7990
Radeon HD 7990
AMD Radeon R9 380X
Radeon R9 380X

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User ratings: view and submit

Here you can see the user rating of the graphics cards, as well as rate them yourself.


4.2 49 votes

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3.8 163 votes

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Questions and comments

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