NVIDIA · GeForce 6 Series

NVIDIA GeForce 6800 Ultra

The NVIDIA GeForce 6800 Ultra is a graphics card using a 130 nm process. It has 512 MB of GDDR3 memory on a 256-bit bus, 35.2 GB/s of memory bandwidth, a boost clock of 425 MHz and a 81 W board power rating. It scores 139 in the PassMark G3D benchmark. It supports DirectX 9.0c and OpenGL 2.1.

NV45130 nm

6/10 key specs recorded · 23 facts

Depth: 31 recorded fields

Specification data last verified October 1, 2026 against PassMark Videocard Benchmark and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 6 of 10 tracked specifications recorded.

PassMark Videocard Benchmark Wikipedia GPU list tables (wikigrid-2026-09)PassMark Videocard Benchmark

Shading units

n/a

Memory

512 MB

GDDR3 · 256-bit

Boost clock

n/a

425 MHz base

Board power

81 W

Performance

The NVIDIA GeForce 6800 Ultra scores 139 in the PassMark G3D benchmark, higher than 21% of the 2,658 GPUs benchmarked (PassMark rank #2,296), measured across 3 submitted results. Its PassMark G2D score is 153.

PassMark G3D Mark

139

Rank #2,296
Faster than 21% of 2,658 GPUs
3 samples

0relative to the fastest GPU on record (41,928)

As stated by PassMark

Category Desktop

Bus interface AGP 8x,PCI-E x16

Max memory 512 MB

Core clock 400 MHz

Memory clock 1100 MHz

DirectX 9.0c

OpenGL 2.1

First benchmarked 2009-04-06

Samples 3

PassMark listing (collected 2026-10-01)

PassMark's own listing for the NVIDIA GeForce 6800 Ultra states the AGP 8x,PCI-E x16 interface, up to 512 MB of memory, a core clock of 400 MHz, DirectX 9.0c and OpenGL 2.1, first benchmarked on 2009-04-06. These are PassMark's figures, shown separately from the specification tables above.

Not to be confused with

This page covers the NVIDIA GeForce 6800 Ultra specifically. It is a different product from NVIDIA GeForce 6800 Ultra AGP, NVIDIA GeForce 6800 Ultra DDL, which have their own specifications. Check the exact model name before comparing figures.

Graphics processor

Architecture Not recorded

Codename NV45

Chip Not recorded

Process node 130 nm

Transistors 222 M

Die size 287 mm²

The NVIDIA GeForce 6800 Ultra uses the NV45 graphics processor, is manufactured on a 130 nm process, contains 222 million transistors and has a die size of 287 mm².

Shader configuration

Shading units Not recorded

Compute units Not recorded

Streaming multiprocessors Not recorded

Execution units Not recorded

Texture units (TMUs) Not recorded

Render output units (ROPs) 16

Ray tracing cores Not recorded

Tensor / AI cores Not recorded

XMX engines Not recorded

Infinity cache Not recorded

The NVIDIA GeForce 6800 Ultra 16 render output units.

The NVIDIA GeForce 6800 Ultra does not use XMX engines; those are specific to Intel Arc graphics. Infinity Cache is an AMD architectural feature and does not apply to the NVIDIA GeForce 6800 Ultra.

Clock speeds

Base clock 425 MHz

Boost clock Not recorded

Game clock Not recorded

Memory clock Not recorded

Effective memory clock Not recorded

The NVIDIA GeForce 6800 Ultra runs at a base clock of 425 MHz.

Memory

Size 512 MB

Type GDDR3

Bus width 256-bit

Bandwidth 35.2 GB/s

The NVIDIA GeForce 6800 Ultra is equipped with 512 MB of GDDR3 memory, uses a 256-bit memory bus and delivers 35.2 GB/s of memory bandwidth.

Board and power

The NVIDIA GeForce 6800 Ultra has a board power rating of 81 W and it connects over AGP 8x,PCI-E x16.

Board power (TDP) 81 W

Total board power Not recorded

Suggested PSU Not recorded

Power connectors Not recorded

Slot width Not recorded

Length Not recorded

Width Not recorded

Height Not recorded

Cooler Not recorded

Max temperature Not recorded

Bus interface AGP 8x,PCI-E x16

Market

Launched Not recorded

Launch price $499

Status Not recorded

Form factor Not recorded

Segment Desktop

Series GeForce 6 Series

The NVIDIA GeForce 6800 Ultra launched at a price of $499.

Benchmarks

PassMark G3D 139

PassMark G2D 153

Rank #2,296

Samples 3

Graphics and compute APIs

The NVIDIA GeForce 6800 Ultra supports DirectX 9.0c and OpenGL 2.1.

DirectX 9.0c (stated by PassMark)

OpenGL 2.1 (stated by PassMark)

Feex has no recorded CUDA compute capability for the NVIDIA GeForce 6800 Ultra. Feex has no recorded Vulkan version for the NVIDIA GeForce 6800 Ultra. Feex has no recorded OpenCL version for the NVIDIA GeForce 6800 Ultra.