ATI Radeon X850 CrossFire Edition vs ATI X1950 CrossFire Edition

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	R500 (2005−2007)	R400 (2004−2008)
GPU code name	R580+	R480
Market segment	Desktop	Desktop
Release date	10 September 2006 (18 years ago)	10 September 2006 (18 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.

Core clock speed	650 MHz	520 MHz
Number of transistors	384 million	160 million
Manufacturing process technology	90 nm	130 nm
Texture fill rate	10.40	8.320
ROPs	16	16
TMUs	16	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	PCIe 1.0 x16
Width	2-slot	2-slot
Supplementary power connectors	1x 6-pin	1x 6-pin

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	GDDR4	GDDR3
Maximum RAM amount	512 MB	256 MB
Memory bus width	256 Bit	256 Bit
Memory clock speed	1000 MHz	540 MHz
Memory bandwidth	64 GB/s	34.56 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

1x DVI, 1x VHDCI

2x DVI

API compatibility

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

DirectX	9.0c (9_3)	9.0b (9_2)
Shader Model	3.0	no data
OpenGL	2.0	2.0
OpenCL	N/A	N/A
Vulkan	N/A	N/A

Pros & cons summary

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Maximum RAM amount	512 MB	256 MB
Chip lithography	90 nm	130 nm

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