Radeon RX 6850M XT vs GeForce GTX 645 OEM

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Primary details

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

Place in the rankingnot rated75
Place by popularitynot in top-100not in top-100
Power efficiencyno data19.80
ArchitectureKepler (2012−2018)RDNA 2.0 (2020−2024)
GPU code nameGK106Navi 22
Market segmentDesktopLaptop
Release date22 April 2013 (11 years ago)4 January 2022 (2 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 cores5762560
Core clock speed824 MHz2321 MHz
Boost clock speedno data2581 MHz
Number of transistors2,540 million17,200 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)65 Watt165 Watt
Texture fill rate39.55413.0
Floating-point processing power0.9492 TFLOPS13.21 TFLOPS
ROPs1664
TMUs48160
Ray Tracing Coresno data40

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 sizeno datalarge
InterfacePCIe 3.0 x16PCIe 4.0 x16
Length147 mmno data
Width1-slotno data
Supplementary power connectorsNoneNone

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 typeGDDR5GDDR6
Maximum RAM amount1 GB12 GB
Memory bus width128 Bit192 Bit
Memory clock speed1000 MHz2000 MHz
Memory bandwidth64 GB/s384.0 GB/s
Shared memory--

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 Connectors1x DVI, 1x HDMI, 1x DisplayPortNo outputs
HDMI+-

API compatibility

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

DirectX12 (11_0)12 Ultimate (12_2)
Shader Model5.16.5
OpenGL4.64.6
OpenCL1.22.1
Vulkan1.1.1261.3
CUDA3.0-

Pros & cons summary


Recency 22 April 2013 4 January 2022
Maximum RAM amount 1 GB 12 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 65 Watt 165 Watt

GTX 645 OEM has 153.8% lower power consumption.

RX 6850M XT, on the other hand, has an age advantage of 8 years, a 1100% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between GeForce GTX 645 OEM and Radeon RX 6850M XT. We've got no test results to judge.

Be aware that GeForce GTX 645 OEM is a desktop card while Radeon RX 6850M XT is a notebook one.


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

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NVIDIA GeForce GTX 645 OEM
GeForce GTX 645 OEM
AMD Radeon RX 6850M XT
Radeon RX 6850M XT

Comparisons with similar GPUs

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Community ratings

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3.8 75 votes

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Questions & comments

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