In the gpu comparison between the Gainward GeForce RTX 3090 Phantom and the INNO3D GeForce GTX 1080 Twin X2, we compare both the technical data and the benchmark results of the two graphics cards.
Quick comparison
In FP32 performance, the Gainward GeForce RTX 3090 Phantom is 312 % faster than the INNO3D GeForce GTX 1080 Twin X2.
The Gainward GeForce RTX 3090 Phantom is based on the NVIDIA GeForce RTX 3090 and has 10496 texture shaders and 82 execution units.
INNO3D GeForce GTX 1080 Twin X2 is based on NVIDIA GeForce GTX 1080, which has 2560 shaders and 20 execution units.
Memory
Memory
Gainward GeForce RTX 3090 Phantom
INNO3D GeForce GTX 1080 Twin X2
Memory Size
24 GB
8 GB
Memory Type
GDDR6X
GDDR5X
Memory Clock
1.219 GHz
1.251 GHz
Memory Speed
19.5 Gbps
10.0 Gbps
Memory bandwidth
936 GB/s
320 GB/s
Memory Interface
384 bit
256 bit
More information
The Gainward GeForce RTX 3090 Phantom has 24 GB of graphics memory of the type GDDR6X and achieves a memory bandwidth of 936 GB/s.
The INNO3D GeForce GTX 1080 Twin X2 can access 8 GB GDDR5X graphics memory and thus achieves a memory bandwidth of 320 GB/s.
Clock Speeds
Clock Speeds
Gainward GeForce RTX 3090 Phantom
INNO3D GeForce GTX 1080 Twin X2
Base Clock
1.395 GHz
1.607 GHz
Boost Clock
1.740 GHz
1.733 GHz
Overclocking
Yes
Yes
More information
The Gainward GeForce RTX 3090 Phantom clocks in the base with up to 1.395 GHz. The base frequency of the INNO3D GeForce GTX 1080 Twin X2 is 1.607 GHz.
Thermal Design
Thermal Design
Gainward GeForce RTX 3090 Phantom
INNO3D GeForce GTX 1080 Twin X2
TDP
370 W
180 W
Tjunction max
93 °C
94 °C
PCIe-Power
3 x 8-Pin
1 x 8-Pin
More information
The TDP (Thermal Design Power) of the Gainward GeForce RTX 3090 Phantom is 370 W. The graphics card is supplied with energy via the 3 x 8-Pin connector.
The INNO3D GeForce GTX 1080 Twin X2 has a TDP of 180 W and is supplied with the required energy via 1 x 8-Pin PCIe power connectors.
Cooler & Fans
Cooler & Fans
Gainward GeForce RTX 3090 Phantom
INNO3D GeForce GTX 1080 Twin X2
Fan-Type
Axial
Axial
Fan 1
3 x 90 mm
2 x 90 mm
Cooler-Type
Air cooling
Air cooling
Noise (Idle)
0 dB
0 dB
More information
The Gainward GeForce RTX 3090 Phantom has a total of 3 Axial fans.
The INNO3D GeForce GTX 1080 Twin X2 has 2 Axial fans to cool the GPU and memory.
Connectivity
Connectivity
Gainward GeForce RTX 3090 Phantom
INNO3D GeForce GTX 1080 Twin X2
Max. Displays
4
4
HDCP
2.3
2.2
HDMI
1x HDMI 2.1
1x HDMI 2.0b
DisplayPort
3x DP 1.4a
3x DP 1.4
DVI
--
1
More information
In the connectivity category, we recorded the number of ports on a graphics card. A total of 4 screens can be connected to the Gainward GeForce RTX 3090 Phantom.
The INNO3D GeForce GTX 1080 Twin X2 supports a maximum of 4 screens.
Featureset
Featureset
Gainward GeForce RTX 3090 Phantom
INNO3D GeForce GTX 1080 Twin X2
Max. resolution
7680x4320
7680x4320
DirectX
12_2 (Ultimate)
12_1
Raytracing
Yes
No
DLSS / FSR
Yes
Yes
LED
Addressable LED
No LED lighting
More information
The Gainward GeForce RTX 3090 Phantom supports a maximum resolution of 7680x4320 pixels.
The maximum resolution of the INNO3D GeForce GTX 1080 Twin X2 is 7680x4320 pixels.
Supported Video Codecs
Supported Video Codecs
Gainward GeForce RTX 3090 Phantom
INNO3D GeForce GTX 1080 Twin X2
h264
Decode / Encode
Decode / Encode
h265 / HEVC
Decode / Encode
Decode / Encode
VP8
Decode
Decode
VP9
Decode
Decode
AV1
Decode
No
More information
The support and acceleration of certain video codecs directly in the graphics card reduces the load when playing or creating videos.
Dimensions
Dimensions
Gainward GeForce RTX 3090 Phantom
INNO3D GeForce GTX 1080 Twin X2
Length
304 mm
266 mm
Height
136 mm
111 mm
Width (Slots)
3 Slots
2 Slots
SFF-Ready
No
No
More information
The Gainward GeForce RTX 3090 Phantom is 304 mm long, 136 mm high and -- wide.
The INNO3D GeForce GTX 1080 Twin X2 is 266 mm long, 111 mm high and -- wide.
3DMark is a benchmark program that determines the performance of certain components of a computer and then reports the performance as a numerical value.
Cyberpunk 2077 was developed by CD Projekt Red and is based on the development studio's own REDengine 4. Ray tracing is switched off in our benchmarks.
The Last of Us Part One is a game released by Sony in June 2013 exclusively for the Playstation and released for the PC in early 2023. The benchmark values here were determined at high details.
Geekbench 6 is a cross-platform benchmark for main processors, which also carries out 3 different graphics benchmarks and outputs them in the form of a numerical value.
The theoretical computing power of the graphics card with single precision (32 bit) in TFLOPS indicates how many trillion FP32 floating point operations the graphics card (GPU) can perform per second.
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