Matrox Parhelia PCI vs GeForce 7800 GTX

Primary details

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

Place in the ranking	1156	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.01	no data
Power efficiency	0.61	no data
Architecture	Curie (2003−2013)	Parhelia (2002−2006)
GPU code name	G70	Parhelia-512
Market segment	Desktop	Desktop
Release date	22 June 2005 (19 years ago)	2003 (21 year ago)
Launch price (MSRP)	$599	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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.

Core clock speed	430 MHz	200 MHz
Number of transistors	302 million	80 million
Manufacturing process technology	110 nm	150 nm
Power consumption (TDP)	86 Watt	no data
Texture fill rate	10.32	3.200
ROPs	16	4
TMUs	24	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).

Interface	PCIe 1.0 x16	PCI-X
Length	228 mm	190 mm
Width	1-slot	1-slot
Supplementary power connectors	no data	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	GDDR3	DDR
Maximum RAM amount	256 MB	256 MB
Memory bus width	256 Bit	64 Bit
Memory clock speed	600 MHz	500 MBps
Memory bandwidth	38.4 GB/s	4 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

2x DVI, 1x S-Video

2x DVI

API compatibility

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

DirectX	9.0c (9_3)	8.1
Shader Model	3.0	no data
OpenGL	2.1	1.3
OpenCL	N/A	N/A
Vulkan	N/A	N/A

Pros & cons summary

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Chip lithography

110 nm

150 nm

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