Radeon R5 M255 vs GeForce 8600 GTS

Primary details

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

Place in the ranking	not rated	1005
Place by popularity	not in top-100	not in top-100
Architecture	Tesla (2006−2010)	GCN 3.0 (2014−2019)
GPU code name	G84	Topaz
Market segment	Desktop	Laptop
Release date	17 April 2007 (17 years ago)	12 October 2014 (10 years ago)
Launch price (MSRP)	$199	no data

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	32	384
Compute units	no data	5
Core clock speed	675 MHz	925 MHz
Boost clock speed	no data	940 MHz
Number of transistors	289 million	1,550 million
Manufacturing process technology	80 nm	28 nm
Power consumption (TDP)	60 Watt	no data
Texture fill rate	10.80	22.56
Floating-point processing power	0.0928 TFLOPS	0.7219 TFLOPS
ROPs	8	8
TMUs	16	24

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).

Bus support	no data	PCIe 3.0 x8
Interface	PCIe 1.0 x16	PCIe 3.0 x8
Length	198 mm	no data
Width	1-slot	no data
Supplementary power connectors	1x 6-pin	no data
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	GDDR3	DDR3
Maximum RAM amount	256 MB	4 GB
Standard memory config per GPU	256 MB	no data
Memory bus width	128 Bit	64 Bit
Memory clock speed	1000 MHz	1000 MHz
Memory bandwidth	32 GB/s	16 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 Connectors	2x DVI, 1x S-Video	No outputs
Eyefinity	-	+

Supported technologies

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

AppAcceleration	-	+
HD3D	-	+
PowerTune	-	+
DualGraphics	-	+
ZeroCore	-	+
Switchable graphics	-	+

API compatibility

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

DirectX	11.1 (10_0)	DirectX® 11
Shader Model	4.0	6.3
OpenGL	2.1	4.4
OpenCL	1.1	Not Listed
Vulkan	N/A	-
Mantle	-	+
CUDA	1.1	-

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

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Pros & cons summary

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Recency	17 April 2007	12 October 2014
Maximum RAM amount	256 MB	4 GB
Chip lithography	80 nm	28 nm

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