Radeon HD 6990 vs R9 390X

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Aggregate performance score

We've compared Radeon R9 390X and Radeon HD 6990, covering specs and all relevant benchmarks.

R9 390X
2015
0 MB GDDR5, 275 Watt
21.03
+212%

R9 390X outperforms HD 6990 by a whopping 212% based on our aggregate benchmark results.

Primary details

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

Place in the ranking239534
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation8.720.55
Power efficiency6.041.42
ArchitectureGCN 2.0 (2013−2017)TeraScale 3 (2010−2013)
GPU code nameGrenadaAntilles
Market segmentDesktopDesktop
Designreferenceno data
Release date18 June 2015 (9 years ago)8 March 2011 (13 years ago)
Launch price (MSRP)$429 $699

Cost-effectiveness evaluation

The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.

R9 390X has 1485% better value for money than HD 6990.

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 cores28161536 ×2
Core clock speedno data830 MHz
Boost clock speed1050 MHzno data
Number of transistors6,200 million2,640 million
Manufacturing process technology28 nm40 nm
Power consumption (TDP)275 Watt375 Watt
Texture fill rate184.879.68 ×2
Floating-point processing power5.914 TFLOPS2.55 TFLOPS ×2
ROPs6432 ×2
TMUs17696 ×2

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 supportPCIe 3.0no data
InterfacePCIe 3.0 x16PCIe 2.0 x16
Length275 mm295 mm
Width2-slot2-slot
Supplementary power connectors1 x 6-pin, 1 x 8-pin2x 8-pin
Bridgeless CrossFire+-

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 typeGDDR5GDDR5
High bandwidth memory (HBM)-no data
Maximum RAM amount0 MB2 GB ×2
Memory bus width512 Bit256 Bit ×2
Memory clock speed1050 MHz1250 MHz
Memory bandwidth384 GB/s160.0 GB/s ×2
Shared memory--

Connectivity and outputs

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
Eyefinity+-
Number of Eyefinity displays6no data
HDMI+-
DisplayPort support+-

Supported technologies

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

CrossFire+-
FreeSync+-
PowerTune+-
TrueAudio+-
VCE+-
DDMA audio+no data

API and SDK compatibility

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

DirectXDirectX® 1211.2 (11_0)
Shader Model6.35.0
OpenGL4.64.4
OpenCL2.01.2
Vulkan+N/A
Mantle+-

Synthetic benchmark performance

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


Combined synthetic benchmark score

This is our combined benchmark score.

R9 390X 21.03
+212%
HD 6990 6.74

Passmark

This is the most ubiquitous GPU benchmark. 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.

R9 390X 9396
+212%
HD 6990 3013

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.

R9 390X 12389
+113%
HD 6990 5830

Gaming performance

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

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD91
+237%
27−30
−237%
4K48
+243%
14−16
−243%

Cost per frame, $

1080p4.71
+449%
25.89
−449%
4K8.94
+459%
49.93
−459%
  • R9 390X has 449% lower cost per frame in 1080p
  • R9 390X has 459% lower cost per frame in 4K

FPS performance in popular games

Full HD
Low Preset

Atomic Heart 60−65
+244%
18−20
−244%
Counter-Strike 2 130−140
+230%
40−45
−230%
Cyberpunk 2077 45−50
+250%
14−16
−250%

Full HD
Medium Preset

Atomic Heart 60−65
+244%
18−20
−244%
Battlefield 5 90−95
+241%
27−30
−241%
Counter-Strike 2 130−140
+230%
40−45
−230%
Cyberpunk 2077 45−50
+250%
14−16
−250%
Far Cry 5 75−80
+221%
24−27
−221%
Fortnite 110−120
+229%
35−40
−229%
Forza Horizon 4 90−95
+241%
27−30
−241%
Forza Horizon 5 70−75
+248%
21−24
−248%
PLAYERUNKNOWN'S BATTLEGROUNDS 85−90
+230%
27−30
−230%
Valorant 160−170
+220%
50−55
−220%

Full HD
High Preset

Atomic Heart 60−65
+244%
18−20
−244%
Battlefield 5 90−95
+241%
27−30
−241%
Counter-Strike 2 130−140
+230%
40−45
−230%
Counter-Strike: Global Offensive 250−260
+214%
80−85
−214%
Cyberpunk 2077 45−50
+250%
14−16
−250%
Dota 2 110−120
+240%
35−40
−240%
Far Cry 5 75−80
+221%
24−27
−221%
Fortnite 110−120
+229%
35−40
−229%
Forza Horizon 4 90−95
+241%
27−30
−241%
Forza Horizon 5 70−75
+248%
21−24
−248%
Grand Theft Auto V 80−85
+250%
24−27
−250%
Metro Exodus 50−55
+213%
16−18
−213%
PLAYERUNKNOWN'S BATTLEGROUNDS 85−90
+230%
27−30
−230%
The Witcher 3: Wild Hunt 76
+217%
24−27
−217%
Valorant 160−170
+220%
50−55
−220%

Full HD
Ultra Preset

Battlefield 5 90−95
+241%
27−30
−241%
Cyberpunk 2077 45−50
+250%
14−16
−250%
Dota 2 110−120
+240%
35−40
−240%
Far Cry 5 75−80
+221%
24−27
−221%
Forza Horizon 4 90−95
+241%
27−30
−241%
PLAYERUNKNOWN'S BATTLEGROUNDS 85−90
+230%
27−30
−230%
The Witcher 3: Wild Hunt 41
+242%
12−14
−242%
Valorant 160−170
+220%
50−55
−220%

Full HD
Epic Preset

Fortnite 110−120
+229%
35−40
−229%

1440p
High Preset

Counter-Strike 2 50−55
+213%
16−18
−213%
Counter-Strike: Global Offensive 160−170
+224%
50−55
−224%
Grand Theft Auto V 40−45
+242%
12−14
−242%
Metro Exodus 30−33
+233%
9−10
−233%
PLAYERUNKNOWN'S BATTLEGROUNDS 170−180
+216%
55−60
−216%
Valorant 190−200
+232%
60−65
−232%

1440p
Ultra Preset

Battlefield 5 60−65
+256%
18−20
−256%
Cyberpunk 2077 21−24
+214%
7−8
−214%
Far Cry 5 50−55
+225%
16−18
−225%
Forza Horizon 4 55−60
+228%
18−20
−228%
The Witcher 3: Wild Hunt 35−40
+225%
12−14
−225%

1440p
Epic Preset

Fortnite 50−55
+238%
16−18
−238%

4K
High Preset

Atomic Heart 18−20
+260%
5−6
−260%
Counter-Strike 2 21−24
+214%
7−8
−214%
Grand Theft Auto V 40−45
+250%
12−14
−250%
Metro Exodus 18−20
+217%
6−7
−217%
The Witcher 3: Wild Hunt 29
+222%
9−10
−222%
Valorant 130−140
+233%
40−45
−233%

4K
Ultra Preset

Battlefield 5 35−40
+250%
10−11
−250%
Counter-Strike 2 21−24
+214%
7−8
−214%
Cyberpunk 2077 10−11
+233%
3−4
−233%
Dota 2 75−80
+217%
24−27
−217%
Far Cry 5 24−27
+225%
8−9
−225%
Forza Horizon 4 40−45
+233%
12−14
−233%
PLAYERUNKNOWN'S BATTLEGROUNDS 24−27
+243%
7−8
−243%

4K
Epic Preset

Fortnite 24−27
+213%
8−9
−213%

This is how R9 390X and HD 6990 compete in popular games:

  • R9 390X is 237% faster in 1080p
  • R9 390X is 243% faster in 4K

Pros & cons summary


Performance score 21.03 6.74
Recency 18 June 2015 8 March 2011
Chip lithography 28 nm 40 nm
Power consumption (TDP) 275 Watt 375 Watt

R9 390X has a 212% higher aggregate performance score, an age advantage of 4 years, a 42.9% more advanced lithography process, and 36.4% lower power consumption.

The Radeon R9 390X is our recommended choice as it beats the Radeon HD 6990 in performance tests.

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AMD Radeon R9 390X
Radeon R9 390X
AMD Radeon HD 6990
Radeon HD 6990

Other comparisons

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Community ratings

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


4.3 270 votes

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3.5 26 votes

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