ATI Radeon HD 2600 XT X2 vs ATI HD 2900 GT

Primary details

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

Place in the ranking	1243	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	0.36	no data
Architecture	TeraScale (2005−2013)	TeraScale (2005−2013)
GPU code name	R600	RV630
Market segment	Desktop	Desktop
Release date	6 November 2007 (18 years ago)	26 July 2007 (19 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. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.

Pipelines / CUDA cores	240	120 ×2
Core clock speed	601 MHz	800 MHz
Number of transistors	720 million	390 million
Manufacturing process technology	80 nm	65 nm
Power consumption (TDP)	150 Watt	no data
Texture fill rate	7.212	6.400 ×2
Floating-point processing power	0.2885 TFLOPS	0.192 TFLOPS ×2
ROPs	12	4 ×2
TMUs	12	8 ×2
L2 Cache	128 KB	64 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
Width	2-slot	2-slot
Supplementary power connectors	1x 8-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	GDDR3	GDDR3
Maximum RAM amount	256 MB	512 MB ×2
Memory bus width	256 Bit	128 Bit ×2
Memory clock speed	800 MHz	800 MHz
Memory bandwidth	51.2 GB/s	25.6 GB/s ×2

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

4x DVI, 1x S-Video

API and SDK support

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

DirectX	10.0 (10_0)	10.0 (10_0)
Shader Model	4.0	4.0
OpenGL	3.3	3.3
OpenCL	N/A	N/A
Vulkan	N/A	N/A

Pros & cons summary

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Recency	6 November 2007	26 July 2007
Maximum RAM amount	256 MB	512 MB
Chip lithography	80 nm	65 nm