GeForce 6800 Ultra vs 9400 GT

Primary details

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

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	Tesla (2006−2010)	Curie (2003−2013)
GPU code name	G96C	NV45
Market segment	Desktop	Desktop
Release date	27 August 2008 (16 years ago)	26 July 2004 (20 years ago)
Launch price (MSRP)	$79.99	$499

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	16	no data
Core clock speed	550 MHz	425 MHz
Number of transistors	314 million	222 million
Manufacturing process technology	55 nm	130 nm
Power consumption (TDP)	50 Watt	81 Watt
Maximum GPU temperature	105 °C	no data
Texture fill rate	4.400	6.800
Floating-point processing power	0.0448 TFLOPS	no data
ROPs	4	16
TMUs	8	16

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).

Bus support	PCI-E 2.0	no data
Interface	PCIe 2.0 x16	PCIe 1.0 x16
Length	168 mm	197 mm
Height	4.376" (11.1 cm)	no data
Width	1-slot	2-slot
Supplementary power connectors	None	1x 6-pin
SLI options	+	-

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	DDR2	GDDR3
Maximum RAM amount	512 MB	256 MB
Memory bus width	128 Bit	256 Bit
Memory clock speed	400 MHz	550 MHz
Memory bandwidth	12.8 GB/s	35.2 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	Dual Link DVI	2x DVI, 1x S-Video
Multi monitor support	+	no data
HDMI	+	-
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	S/PDIF	no data

API compatibility

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

DirectX	11.1 (10_0)	9.0c (9_3)
Shader Model	4.0	3.0
OpenGL	2.1	2.1
OpenCL	1.1	N/A
Vulkan	N/A	N/A
CUDA	+	-

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

---

---

Pros & cons summary

---

Recency	27 August 2008	26 July 2004
Maximum RAM amount	512 MB	256 MB
Chip lithography	55 nm	130 nm
Power consumption (TDP)	50 Watt	81 Watt

---

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

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.

---