Radeon Pro W6400 vs Tesla K80

Place in the ranking	349	260
Place by popularity	not in top-100	not in top-100
Power efficiency	3.50	29.00
Architecture	Kepler 2.0 (2013−2015)	RDNA 2.0 (2020−2024)
GPU code name	GK210	Navi 24
Market segment	Workstation	Workstation
Release date	17 November 2014 (10 years ago)	19 January 2022 (2 years ago)

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 cores	2496	768
Core clock speed	562 MHz	2331 MHz
Boost clock speed	824 MHz	2331 MHz
Number of transistors	7,100 million	5,400 million
Manufacturing process technology	28 nm	6 nm
Power consumption (TDP)	300 Watt	50 Watt
Texture fill rate	171.4	111.9
Floating-point processing power	4.113 TFLOPS	3.58 TFLOPS
ROPs	48	32
TMUs	208	48
Ray Tracing Cores	no data	12

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).

Interface	PCIe 3.0 x16	PCIe 4.0 x4
Length	267 mm	no data
Width	2-slot	1-slot
Supplementary power connectors	1x 8-pin	None

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 type	GDDR5	GDDR6
Maximum RAM amount	12 GB	4 GB
Memory bus width	384 Bit	64 Bit
Memory clock speed	1253 MHz	1750 MHz
Memory bandwidth	240.6 GB/s	112.0 GB/s

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 Connectors

No outputs

2x DisplayPort 1.4a

API compatibility

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

DirectX	12 (11_1)	12 Ultimate (12_2)
Shader Model	5.1	6.6
OpenGL	4.6	4.6
OpenCL	1.2	2.2
Vulkan	1.1.126	1.3
CUDA	3.7	-

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. 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.

Tesla K80 15.17

Pro W6400 20.95
+38.1%

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.

Tesla K80 5852

Pro W6400 8081
+38.1%

Gaming performance

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

Pros & cons summary

Performance score	15.17	20.95
Recency	17 November 2014	19 January 2022
Maximum RAM amount	12 GB	4 GB
Chip lithography	28 nm	6 nm
Power consumption (TDP)	300 Watt	50 Watt

Tesla K80 has a 200% higher maximum VRAM amount.

Pro W6400, on the other hand, has a 38.1% higher aggregate performance score, an age advantage of 7 years, a 366.7% more advanced lithography process, and 500% lower power consumption.

The Radeon Pro W6400 is our recommended choice as it beats the Tesla K80 in performance tests.

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