Tesla P4 vs Radeon HD 6490

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Primary details

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

Place in the rankingnot rated241
Place by popularitynot in top-100not in top-100
Power efficiencyno data21.15
ArchitectureTeraScale 2 (2009−2015)Pascal (2016−2021)
GPU code nameRedwoodGP104
Market segmentDesktopWorkstation
Release date4 July 2011 (13 years ago)13 September 2016 (8 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 cores3202560
Core clock speed550 MHz886 MHz
Boost clock speedno data1114 MHz
Number of transistors627 million7,200 million
Manufacturing process technology40 nm16 nm
Power consumption (TDP)39 Watt75 Watt
Texture fill rate8.800178.2
Floating-point processing power0.352 TFLOPS5.704 TFLOPS
ROPs864
TMUs16160

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).

InterfacePCIe 2.0 x16PCIe 3.0 x16
Length165 mm168 mm
Width1-slot1-slot
Supplementary power connectorsNoneNone

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 typeDDR2GDDR5
Maximum RAM amount1 GB8 GB
Memory bus width128 Bit256 Bit
Memory clock speed500 MHz1502 MHz
Memory bandwidth16 GB/s192.3 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 Connectors1x DVI, 1x HDMI, 1x VGANo outputs
HDMI+-

API compatibility

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

DirectX11.2 (11_0)12 (12_1)
Shader Model5.06.4
OpenGL4.44.6
OpenCL1.21.2
VulkanN/A1.2.131
CUDA-6.1

Pros & cons summary


Recency 4 July 2011 13 September 2016
Maximum RAM amount 1 GB 8 GB
Chip lithography 40 nm 16 nm
Power consumption (TDP) 39 Watt 75 Watt

HD 6490 has 92.3% lower power consumption.

Tesla P4, on the other hand, has an age advantage of 5 years, a 700% higher maximum VRAM amount, and a 150% more advanced lithography process.

We couldn't decide between Radeon HD 6490 and Tesla P4. We've got no test results to judge.

Be aware that Radeon HD 6490 is a desktop card while Tesla P4 is a workstation one.


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

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AMD Radeon HD 6490
Radeon HD 6490
NVIDIA Tesla P4
Tesla P4

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Community ratings

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