Radeon R9 255 OEM vs HD 8670M

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Primary details

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

Place in the ranking1076not rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2012−2020)GCN 1.0 (2012−2020)
GPU code nameSunCape Verde
Market segmentLaptopDesktop
Release date1 March 2013 (12 years ago)21 December 2013 (11 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 cores320512
Core clock speed925 MHz900 MHz
Boost clock speed975 MHz930 MHz
Number of transistors690 million1,500 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)no data65 Watt
Texture fill rate19.5029.76
Floating-point processing power0.624 TFLOPS0.9523 TFLOPS
ROPs816
TMUs2032
L1 Cache80 KB128 KB
L2 Cache128 KB256 KB

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 sizemedium sizedno data
InterfacePCIe 3.0 x8PCIe 3.0 x16
Widthno data2-slot
Supplementary power connectorsno data1x 6-pin

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 typeDDR3GDDR5
Maximum RAM amount2 GB2 GB
Memory bus width64 Bit128 Bit
Memory clock speed1000 MHz1150 MHz
Memory bandwidth16 GB/s73.6 GB/s
Shared memory--

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 ConnectorsNo outputsNo outputs

API and SDK support

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

DirectX12 (11_1)12 (11_1)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.2.1311.2.131

Pros & cons summary


Recency 1 March 2013 21 December 2013

R9 255 OEM has an age advantage of 9 months.

We couldn't decide between Radeon HD 8670M and Radeon R9 255 OEM. We've got no test results to judge.

Be aware that Radeon HD 8670M is a notebook graphics card while Radeon R9 255 OEM is a desktop one.

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AMD Radeon HD 8670M
Radeon HD 8670M
AMD Radeon R9 255 OEM
Radeon R9 255 OEM

Other comparisons

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

Community ratings

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3.2 296 votes

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