ATI Radeon HD 2900 XT vs GeForce GT 630 OEM

Place in the ranking	942	931
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.05
Power efficiency	2.29	0.55
Architecture	Kepler (2012−2018)	TeraScale (2005−2013)
GPU code name	GK107	R600
Market segment	Desktop	Desktop
Release date	24 April 2012 (12 years ago)	14 May 2007 (17 years ago)
Launch price (MSRP)	no data	$399

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	192	320
Core clock speed	875 MHz	743 MHz
Number of transistors	1,270 million	720 million
Manufacturing process technology	28 nm	80 nm
Power consumption (TDP)	50 Watt	215 Watt
Texture fill rate	14.00	11.89
Floating-point processing power	0.336 TFLOPS	0.4755 TFLOPS
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 3.0 x16	PCIe 1.0 x16
Length	145 mm	241 mm
Width	1-slot	2-slot
Supplementary power connectors	None	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	DDR3	GDDR3
Maximum RAM amount	1 GB	512 MB
Memory bus width	128 Bit	512 Bit
Memory clock speed	891 MHz	828 MHz
Memory bandwidth	28.51 GB/s	106.0 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 HDMI, 1x VGA	2x DVI, 1x S-Video
HDMI	+	-

API compatibility

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

DirectX	12 (11_0)	10.0 (10_0)
Shader Model	5.1	4.0
OpenGL	4.6	3.3
OpenCL	1.2	N/A
Vulkan	1.1.126	N/A
CUDA	3.0	-

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary

Performance score	1.67	1.71
Recency	24 April 2012	14 May 2007
Maximum RAM amount	1 GB	512 MB
Chip lithography	28 nm	80 nm
Power consumption (TDP)	50 Watt	215 Watt

GT 630 OEM has an age advantage of 4 years, a 100% higher maximum VRAM amount, a 185.7% more advanced lithography process, and 330% lower power consumption.

ATI HD 2900 XT, on the other hand, has a 2.4% higher aggregate performance score.

Given the minimal performance differences, no clear winner can be declared between GeForce GT 630 OEM and Radeon HD 2900 XT.

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