In the gpu comparison between the KFA2 GeForce RTX 5080 HOF Gaming and the Gainward GeForce RTX 3080 Phantom, we compare both the technical data and the benchmark results of the two graphics cards.
Quick comparison
In FP32 performance, the KFA2 GeForce RTX 5080 HOF Gaming is 95 % faster than the Gainward GeForce RTX 3080 Phantom.
The KFA2 GeForce RTX 5080 HOF Gaming is based on the NVIDIA GeForce RTX 5080 and has 10752 texture shaders and 84 execution units.
Gainward GeForce RTX 3080 Phantom is based on NVIDIA GeForce RTX 3080, which has 8704 shaders and 68 execution units.
Memory
Memory
KFA2 GeForce RTX 5080 HOF Gaming
Gainward GeForce RTX 3080 Phantom
Memory Size
16 GB
10 GB
Memory Type
GDDR7
GDDR6X
Memory Clock
1.875 GHz
1.188 GHz
Memory Speed
30.0 Gbps
19.0 Gbps
Memory bandwidth
960 GB/s
760 GB/s
Memory Interface
256 bit
320 bit
More information
The KFA2 GeForce RTX 5080 HOF Gaming has 16 GB of graphics memory of the type GDDR7 and achieves a memory bandwidth of 960 GB/s.
The Gainward GeForce RTX 3080 Phantom can access 10 GB GDDR6X graphics memory and thus achieves a memory bandwidth of 760 GB/s.
Clock Speeds
Clock Speeds
KFA2 GeForce RTX 5080 HOF Gaming
Gainward GeForce RTX 3080 Phantom
Base Clock
2.295 GHz
1.440 GHz
Boost Clock
2.775 GHz
1.755 GHz
Overclocking
Yes
Yes
More information
The KFA2 GeForce RTX 5080 HOF Gaming clocks in the base with up to 2.295 GHz. The base frequency of the Gainward GeForce RTX 3080 Phantom is 1.440 GHz.
Thermal Design
Thermal Design
KFA2 GeForce RTX 5080 HOF Gaming
Gainward GeForce RTX 3080 Phantom
TDP
360 W
340 W
TDP (up)
--
370 W
Tjunction max
88 °C
93 °C
PCIe-Power
1 x 16-Pin
3 x 8-Pin
More information
The TDP (Thermal Design Power) of the KFA2 GeForce RTX 5080 HOF Gaming is 360 W. The graphics card is supplied with energy via the 1 x 16-Pin connector.
The Gainward GeForce RTX 3080 Phantom has a TDP of 340 W and is supplied with the required energy via 3 x 8-Pin PCIe power connectors.
Cooler & Fans
Cooler & Fans
KFA2 GeForce RTX 5080 HOF Gaming
Gainward GeForce RTX 3080 Phantom
Fan-Type
Axial
Axial
Fan 1
2 x 102 mm
3 x 90 mm
Fan 2
1 x 92 mm
--
Cooler-Type
Air cooling
Air cooling
Noise (Idle)
0 dB
0 dB
Noise (Load)
--
41-43 dB
More information
The KFA2 GeForce RTX 5080 HOF Gaming has a total of 3 Axial fans.
The Gainward GeForce RTX 3080 Phantom has 3 Axial fans to cool the GPU and memory.
Connectivity
Connectivity
KFA2 GeForce RTX 5080 HOF Gaming
Gainward GeForce RTX 3080 Phantom
Max. Displays
4
4
HDCP
2.3
2.3
HDMI
1x HDMI 2.1b
1x HDMI 2.1
DisplayPort
3x DP 2.1b
3x DP 1.4a
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 KFA2 GeForce RTX 5080 HOF Gaming.
The Gainward GeForce RTX 3080 Phantom supports a maximum of 4 screens.
Featureset
Featureset
KFA2 GeForce RTX 5080 HOF Gaming
Gainward GeForce RTX 3080 Phantom
Max. resolution
7680x4320
7680x4320
DirectX
12_2 (Ultimate)
12_2 (Ultimate)
Raytracing
Yes
Yes
DLSS / FSR
Yes
Yes
LED
Addressable LED
Addressable LED
More information
The KFA2 GeForce RTX 5080 HOF Gaming supports a maximum resolution of 7680x4320 pixels.
The maximum resolution of the Gainward GeForce RTX 3080 Phantom is 7680x4320 pixels.
Supported Video Codecs
Supported Video Codecs
KFA2 GeForce RTX 5080 HOF Gaming
Gainward GeForce RTX 3080 Phantom
h264
Decode / Encode
Decode / Encode
h265 / HEVC
Decode / Encode
Decode / Encode
VP8
Decode / Encode
Decode
VP9
Decode / Encode
Decode
AV1
Decode / Encode
Decode
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
KFA2 GeForce RTX 5080 HOF Gaming
Gainward GeForce RTX 3080 Phantom
Length
341 mm
304 mm
Height
145 mm
136 mm
Width
67 mm
--
Width (Slots)
4 Slots
3 Slots
SFF-Ready
No
No
More information
The KFA2 GeForce RTX 5080 HOF Gaming is 341 mm long, 145 mm high and 67 mm wide.
The Gainward GeForce RTX 3080 Phantom is 304 mm long, 136 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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