Radeon RX 640 OEM vs RX 580 2048SP

VS

Primary details

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

Place in the ranking272not rated
Place by popularity62not in top-100
Power efficiency9.21no data
ArchitectureGCN 4.0 (2016−2020)GCN 4.0 (2016−2020)
GPU code namePolaris 20Polaris 23
Market segmentDesktopDesktop
Release date15 October 2018 (6 years ago)9 April 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 cores2048640
Core clock speed1168 MHz1295 MHz
Boost clock speed1284 MHzno data
Number of transistors5,700 million2,200 million
Manufacturing process technology14 nm14 nm
Power consumption (TDP)150 Watt50 Watt
Texture fill rate164.451.80
Floating-point processing power5.259 TFLOPS1.658 TFLOPS
ROPs3216
TMUs12840

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).

InterfacePCIe 3.0 x16PCIe 3.0 x8
Length241 mmno data
Width2-slot1-slot
Supplementary power connectors1x 8-pinNone

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 typeGDDR5GDDR5
Maximum RAM amount8 GB4 GB
Memory bus width256 Bit128 Bit
Memory clock speed1750 MHz1500 MHz
Memory bandwidth224.0 GB/s96 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 Connectors1x DVI, 1x HDMI, 3x DisplayPort1x DisplayPort 1.4a, 2x mini-DisplayPort 1.4a
HDMI+-

API compatibility

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

DirectX12 (12_0)12 (12_0)
Shader Model6.46.7 (6.4)
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.2.1311.3

Pros & cons summary


Recency 15 October 2018 9 April 2020
Maximum RAM amount 8 GB 4 GB
Power consumption (TDP) 150 Watt 50 Watt

RX 580 2048SP has a 100% higher maximum VRAM amount.

RX 640 OEM, on the other hand, has an age advantage of 1 year, and 200% lower power consumption.

We couldn't decide between Radeon RX 580 2048SP and Radeon RX 640 OEM. We've got no test results to judge.


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

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon RX 580 2048SP
Radeon RX 580 2048SP
AMD Radeon RX 640 OEM
Radeon RX 640 OEM

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.2 3026 votes

Rate Radeon RX 580 2048SP on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.3 9 votes

Rate Radeon RX 640 OEM on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.