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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R7 7870K Radeon R9 270X Sapphire Dual-X 4GB OC Edition

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 270X Sapphire Dual-X 4GB OC Edition are massively better than the AMD Radeon R7 7870K.

The R9 270X has a 154 MHz higher core clock speed and 48 more Texture Mapping Units than the Radeon R7 7870K. This results in the R9 270X providing 53.9 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The R9 270X has a 154 MHz higher core clock speed and 24 more Render Output Units than the Radeon R7 7870K. This results in the R9 270X providing 25.7 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon R7 7870K was released over a year more recently than the R9 270X, and so the Radeon R7 7870K is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the R9 270X.

The R9 270X has 4096 MB video memory, but the Radeon R7 7870K does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Radeon R7 7870K has 512 Shader Processing Units and the Radeon R9 270X Sapphire Dual-X 4GB OC Edition has 1280. However, the actual shader performance of the Radeon R7 7870K is 288 and the actual shader performance of the R9 270X is 1164. The R9 270X having 876 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 270X delivers a massively smoother and more efficient experience when processing graphical data than the Radeon R7 7870K.

The Radeon R7 7870K requires 95 Watts to run and the Radeon R9 270X Sapphire Dual-X 4GB OC Edition requires 180 Watts. We would recommend a PSU with at least 300 Watts for the Radeon R7 7870K and a PSU with at least 500 Watts for the R9 270X. The R9 270X requires 85 Watts more than the Radeon R7 7870K to run. The difference is significant enough that the R9 270X may have an adverse affect on your yearly electricity bills in comparison to the Radeon R7 7870K.

Can I Run It

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GPU Architecture

Core Speed866 MHzvs1020 MHz
Boost Clock-vs1070 MHz
ArchitectureKaveri SpectreGCN 1.1 Curacao XT
OC Potential None vs Poor
Driver Support - vs Great
Release Date28 May 2015vs08 Oct 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - vs green tick
9.5
1920x1080 - vs green tick
7.6
2560x1440 - vs green tick
5.5
3840x2160 - vs green tick
4

GPU Memory

MemoryN/Avs4096 MB
Memory Speed1067 MHzvs1400 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth34.1GB/secvs179.2GB/sec
L2 Cache 0 KB vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units512vs1280
Actual Shader Performance14%vs56%
Technology28nmvs28nm
Texture Mapping Units32vs80
Texture Rate27.7 GTexel/svs81.6 GTexel/s
Render Output Units8vs32
Pixel Rate6.9 GPixel/svs32.6 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs2
HDMI Connections0vs1
DisplayPort Connections0vs-
Comparison

GPU Power Requirements

Max Power95 Wattsvs180 Watts
Recommended PSU300 Watts & 22 Ampsvs500 Watts

GPU Features

DirectX11.2vs12.0
Shader Model5.0vs5.0
Open GL4.3vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatednovsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorAMD APU A10-7870K Quad-CorevsIntel Core i5-4430 3.0GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R7 7870K is an integrated Graphics Card in the APU A10-7870K.

It is based on the Graphics Core Next Architecture and offers 512 Shader Processing Units, 32 TMUs and 8 ROPs. The memory bus-width will depend on whether or not the system's RAM is dual-channeled and the operating memory clock, on its frequency. Thus, it can be either 64-bit or 128-bit and up to 1067MHz.
The Graphics Card also shares the processor's L2 Cache of 4MB, reducing the impact of its low memory bandwidth.

Overall, the Graphics Card's performance depends a lot on the system configuration. Best case scenario, expect performance superior to Intel's powerful Iris Pro Graphics 5200 and almost similar to the dedicated Radeon HD 7750.
The card is thus suited for 720p gaming and most modern demanding games can be played at least on medium settings.
Radeon R9 270X Sapphire Dual-X 4GB OC Edition is a special edition of the high-end Radeon R9 270X.
This edition comes with a custom cooling system called "Vapor-X", which reduces the card's temperature under load, significantly and comes overclocked out of the box in the central unit that was increased from 1000MHz to 1020MHz, while the Boost clock is now of 1070MHz.
Furthermore, the card has twice as much memory when compared to the reference card. However, this card will not benefit from extra memory and thus such feature ends up being useless.
Expect little or no performance boost over the standard edition and exactly the same performance as "Radeon R9 270X Sapphire Dual-X 2GB OC Edition"
Recommended CPUAMD Athlon 64 X2 Dual Core 4200+
AMD Athlon II X2 265
Intel Pentium Dual Core G6951 2.8GHz
Intel Pentium Dual Core G6950 2.80GHz
AMD Opteron 2210 X2
Intel Xeon E5-2620 v2
Intel Core i7-2600S 4-Core 2.8GHz
Intel Core i3-7320 2-Core 4.1GHz
Intel Core i5-2550K 3.4GHz
Intel Core i5-4460S 2.9GHz
Possible GPU UpgradesN/AN/A
GPU Variants--

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