RTX A40 vs GeForce 6800 XE

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Primary details

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

Place in the ranking1420not rated
Place by popularitynot in top-100not in top-100
ArchitectureCurie (2003−2013)Ampere (2020−2024)
GPU code nameNV40GA102
Market segmentDesktopWorkstation
Release date30 September 2005 (19 years ago)5 October 2020 (4 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 coresno data10752
Core clock speed275 MHz1305 MHz
Boost clock speedno data1755 MHz
Number of transistors222 million28,300 million
Manufacturing process technology130 nm8 nm
Power consumption (TDP)no data300 Watt
Texture fill rate2.200589.7
Floating-point processing powerno data37.74 TFLOPS
ROPs8112
TMUs8336
Tensor Coresno data336
Ray Tracing Coresno data84

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).

InterfaceAGP 8xPCIe 4.0 x16
Lengthno data267 mm
Width1-slot2-slot
Supplementary power connectorsNone8-pin EPS

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 typeDDR2GDDR6
Maximum RAM amount256 MB48 GB
Memory bus width128 Bit384 Bit
Memory clock speed266 MHz1812 MHz
Memory bandwidth8.512 GB/s695.8 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 VGA, 1x S-Video3x DisplayPort

API compatibility

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

DirectX9.0c (9_3)12 Ultimate (12_2)
Shader Model3.06.5
OpenGL2.14.6
OpenCLN/A2.0
VulkanN/A1.2
CUDA-8.6

Pros & cons summary


Recency 30 September 2005 5 October 2020
Maximum RAM amount 256 MB 48 GB
Chip lithography 130 nm 8 nm

RTX A40 has an age advantage of 15 years, a 19100% higher maximum VRAM amount, and a 1525% more advanced lithography process.

We couldn't decide between GeForce 6800 XE and RTX A40. We've got no test results to judge.

Be aware that GeForce 6800 XE is a desktop card while RTX A40 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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NVIDIA GeForce 6800 XE
GeForce 6800 XE
NVIDIA RTX A40
RTX A40

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Community ratings

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