RTX A40 vs GeForce GTX 850M

Primary details

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

Place in the ranking	612	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	10.24	no data
Architecture	Maxwell (2014−2017)	Ampere (2020−2025)
GPU code name	GM107	GA102
Market segment	Laptop	Workstation
Release date	12 March 2014 (11 years ago)	5 October 2020 (4 years ago)

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	640	10752
Core clock speed	Up to 936 MHz	1305 MHz
Boost clock speed	no data	1755 MHz
Number of transistors	1,870 million	28,300 million
Manufacturing process technology	28 nm	8 nm
Power consumption (TDP)	45 Watt	300 Watt
Texture fill rate	36.08	589.7
Floating-point processing power	1.155 TFLOPS	37.74 TFLOPS
ROPs	16	112
TMUs	40	336
Tensor Cores	no data	336
Ray Tracing Cores	no data	84

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 3.0 x16	PCIe 4.0 x16
Length	no data	267 mm
Width	no data	2-slot
Supplementary power connectors	no data	8-pin EPS
SLI options	+	-

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	GDDR6
Maximum RAM amount	2 GB	48 GB
Standard memory configuration	DDR3 or GDDR5	no data
Memory bus width	128 Bit	384 Bit
Memory clock speed	Up to 2500 MHz	1812 MHz
Memory bandwidth	80.0 GB/s	695.8 GB/s
Shared memory	-	-
Resizable BAR	-	+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	No outputs	3x DisplayPort
eDP 1.2 signal support	Up to 3840x2160	no data
LVDS signal support	Up to 1920x1200	no data
VGA аnalog display support	Up to 2048x1536	no data
DisplayPort Multimode (DP++) support	Up to 3840x2160	no data
HDMI	+	-
HDCP content protection	+	-
7.1 channel HD audio on HDMI	+	-
TrueHD and DTS-HD audio bitstreaming	+	-

Supported technologies

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

H.264, VC1, MPEG2 1080p video decoder	+	-
Optimus	+	-
Ansel	+	no data

API and SDK compatibility

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

DirectX	12 (11_0)	12 Ultimate (12_2)
Shader Model	5.1	6.5
OpenGL	4.5	4.6
OpenCL	1.1	2.0
Vulkan	1.1.126	1.2
CUDA	+	8.6
DLSS	-	+

Pros & cons summary

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Recency	12 March 2014	5 October 2020
Maximum RAM amount	2 GB	48 GB
Chip lithography	28 nm	8 nm
Power consumption (TDP)	45 Watt	300 Watt

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