GeForce GTX 460 OEM vs GT 640

Place in the ranking	767	775
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.20	no data
Power efficiency	3.27	1.40
Architecture	Kepler (2012−2018)	Fermi (2010−2014)
GPU code name	GK107	GF104
Market segment	Desktop	Desktop
Release date	5 June 2012 (12 years ago)	11 October 2010 (14 years ago)
Launch price (MSRP)	$99	no data

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	384	336
Core clock speed	902 MHz	650 MHz
Number of transistors	1,270 million	1,950 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	65 Watt	150 Watt
Texture fill rate	28.86	36.40
Floating-point processing power	0.6927 TFLOPS	0.8736 TFLOPS
ROPs	16	32
TMUs	32	56

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 2.0 x16
Length	145 mm	210 mm
Width	1-slot	2-slot
Supplementary power connectors	None	2x 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	DDR3	GDDR5
Maximum RAM amount	2 GB	1 GB
Memory bus width	128 Bit	256 Bit
Memory clock speed	891 MHz	850 MHz
Memory bandwidth	28.51 GB/s	108.8 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 DisplayPort	2x DVI, 1x mini-HDMI
HDMI	+	+

API compatibility

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

DirectX	12 (11_0)	12 (11_0)
Shader Model	5.1	5.1
OpenGL	4.6	4.6
OpenCL	1.2	1.1
Vulkan	1.1.126	N/A
CUDA	3.0	2.1

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	3.05	3.01
Recency	5 June 2012	11 October 2010
Maximum RAM amount	2 GB	1 GB
Chip lithography	28 nm	40 nm
Power consumption (TDP)	65 Watt	150 Watt

GT 640 has a 1.3% higher aggregate performance score, an age advantage of 1 year, a 100% higher maximum VRAM amount, a 42.9% more advanced lithography process, and 130.8% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between GeForce GT 640 and GeForce GTX 460 OEM.

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