Radeon SDR PCI vs R9 270 1024SP

Primary details

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

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	GCN 1.0 (2012−2020)	Rage 6 (2000−2007)
GPU code name	Pitcairn	Rage 6
Market segment	Desktop	Desktop
Release date	13 March 2015 (9 years ago)	1 June 2000 (23 years ago)
Current price	no data	$110

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. 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	166 MHz
Boost clock speed	925 MHz	no data
Number of transistors	2,800 million	30 million
Manufacturing process technology	28 nm	180 nm
Power consumption (TDP)	150 Watt	23 Watt
Texture fill rate	59.20	1
Floating-point performance	1,894 gflops	no data

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	PCI
Length	no data	165 mm
Width	2-slot	1-slot
Supplementary power connectors	1x 6-pin	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	GDDR5	SDR
Maximum RAM amount	2 GB	32 MB
Memory bus width	256 Bit	128 Bit
Memory clock speed	4800 MHz	166 MHz
Memory bandwidth	153.6 GB/s	2.656 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 VGA, 1x S-Video
HDMI	+	no data

API compatibility

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

DirectX	12 (11_1)	7.0
Shader Model	5.1	no data
OpenGL	4.6	1.3
OpenCL	1.2	N/A
Vulkan	1.2.131	N/A

Pros & cons summary

---

Recency	13 March 2015	1 June 2000
Maximum RAM amount	2 GB	32 MB
Chip lithography	28 nm	180 nm
Power consumption (TDP)	150 Watt	23 Watt

---

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.

---