ATI Radeon HD 2900 PRO vs ATI X1950 XT

Primary details

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

Place in the ranking	not rated	1024
Place by popularity	not in top-100	not in top-100
Power efficiency	no data	0.58
Architecture	R500 (2005−2007)	TeraScale (2005−2013)
GPU code name	R580+	R600
Market segment	Desktop	Desktop
Release date	17 October 2006 (19 years ago)	12 December 2007 (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.

Pipelines / CUDA cores	no data	320
Core clock speed	625 MHz	600 MHz
Number of transistors	384 million	720 million
Manufacturing process technology	90 nm	80 nm
Power consumption (TDP)	96 Watt	200 Watt
Texture fill rate	10.00	9.600
Floating-point processing power	no data	0.384 TFLOPS
ROPs	16	16
TMUs	16	16
L2 Cache	no data	128 KB

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
Length	no data	241 mm
Width	2-slot	2-slot
Supplementary power connectors	1x 6-pin	1x 8-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	GDDR3	GDDR3
Maximum RAM amount	256 MB	512 MB
Memory bus width	256 Bit	256 Bit
Memory clock speed	900 MHz	800 MHz
Memory bandwidth	57.6 GB/s	51.2 GB/s

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors

2x DVI, 1x S-Video

2x DVI, 1x S-Video

API and SDK support

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

DirectX	9.0c (9_3)	10.0 (10_0)
Shader Model	3.0	4.0
OpenGL	2.0	3.3
OpenCL	N/A	N/A
Vulkan	N/A	N/A

Pros & cons summary

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Recency	17 October 2006	12 December 2007
Maximum RAM amount	256 MB	512 MB
Chip lithography	90 nm	80 nm
Power consumption (TDP)	96 Watt	200 Watt