ATI Radeon X800 VE AGP vs R9 270 1024SP

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	GCN 1.0 (2011−2020)	R400 (2004−2008)
GPU code name	Pitcairn	R420
Market segment	Desktop	Desktop
Release date	13 March 2015 (9 years ago)	1 September 2004 (20 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	1024	no data
Core clock speed	900 MHz	425 MHz
Boost clock speed	925 MHz	no data
Number of transistors	2,800 million	160 million
Manufacturing process technology	28 nm	130 nm
Power consumption (TDP)	150 Watt	no data
Texture fill rate	59.20	6.800
Floating-point processing power	1.894 TFLOPS	no data
ROPs	32	16
TMUs	64	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 3.0 x16	AGP 8x
Width	2-slot	1-slot
Supplementary power connectors	1x 6-pin	1x Molex

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	GDDR5	GDDR3
Maximum RAM amount	2 GB	256 MB
Memory bus width	256 Bit	256 Bit
Memory clock speed	1200 MHz	398 MHz
Memory bandwidth	153.6 GB/s	25.47 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 HDMI, 1x DisplayPort	1x DVI, 1x VGA, 1x S-Video
HDMI	+	-

API compatibility

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

DirectX	12 (11_1)	9.0b (9_2)
Shader Model	5.1	no data
OpenGL	4.6	2.0
OpenCL	1.2	N/A
Vulkan	1.2.131	N/A

Pros & cons summary

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Recency	13 March 2015	1 September 2004
Maximum RAM amount	2 GB	256 MB
Chip lithography	28 nm	130 nm

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