ATI M62 vs GeForce GT 645 OEM

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	Fermi 2.0 (2010−2014)	Ultra-Threaded SE (2005−2007)
GPU code name	GF114	M62
Market segment	Desktop	Desktop
Release date	24 April 2012 (12 years ago)	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	288	no data
Core clock speed	776 MHz	no data
Number of transistors	1,950 million	105 million
Manufacturing process technology	40 nm	90 nm
Power consumption (TDP)	102 Watt	no data
Texture fill rate	37.25	no data
Floating-point processing power	0.894 TFLOPS	no data
ROPs	24	4
TMUs	48	4

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 2.0 x16	no data
Length	210 mm	no data
Width	2-slot	no data

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	no data
Maximum RAM amount	1 GB	no data
Memory bus width	192 Bit	no data
Memory clock speed	957 MHz	no data
Memory bandwidth	91.87 GB/s	no data

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 mini-HDMI	no data
HDMI	+	-

API compatibility

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

DirectX	12 (11_0)	9.0c (9_3)
Shader Model	5.1	no data
OpenGL	4.6	2.1
OpenCL	1.1	N/A
Vulkan	N/A	N/A
CUDA	2.1	-

Pros & cons summary

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Chip lithography

40 nm

90 nm

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