Radeon Graphics 448SP vs GeForce GT 640M LE

Primary details

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

Place in the ranking	911	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.04	no data
Power efficiency	3.98	no data
Architecture	Fermi (2010−2014)	GCN 5.1 (2018−2022)
GPU code name	GF108	Renoir
Market segment	Laptop	Desktop
Release date	4 May 2012 (12 years ago)	6 January 2020 (4 years ago)
Launch price (MSRP)	$849.99	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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	Up to 384	448
Core clock speed	Up to 500 MHz	400 MHz
Boost clock speed	no data	1900 MHz
Number of transistors	585 million	9,800 million
Manufacturing process technology	40 nm	7 nm
Power consumption (TDP)	20 Watt	15 Watt
Texture fill rate	12.05	53.20
Floating-point processing power	0.289 TFLOPS	1.702 TFLOPS
ROPs	4	8
TMUs	16	28

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).

Laptop size	medium sized	no data
Bus support	PCI Express 2.0, PCI Express 3.0	no data
Interface	PCIe 2.0 x16	IGP
Width	no data	IGP
Supplementary power connectors	no data	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	DDR3\DDR5	System Shared
Maximum RAM amount	2 GB	System Shared
Memory bus width	128bit	System Shared
Memory clock speed	785 MHz	System Shared
Memory bandwidth	Up to 28.8 GB/s	no data
Shared memory	-	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	No outputs	Motherboard Dependent
HDMI	+	-
HDCP	+	-
Maximum VGA resolution	Up to 2048x1536	no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Blu-Ray	+	-
Optimus	+	-

API compatibility

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

DirectX	12 API	12 (12_1)
Shader Model	5.1	6.7 (6.4)
OpenGL	4.5	4.6
OpenCL	1.1	2.1
Vulkan	N/A	1.3
CUDA	+	-

Pros & cons summary

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Recency	4 May 2012	6 January 2020
Chip lithography	40 nm	7 nm
Power consumption (TDP)	20 Watt	15 Watt

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