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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 8770 (OEM) Radeon R7 260
Red Dead Redemption 2 206% 224%
Cyberpunk 2077 320% 345%
Dragon Ball Z Kakarot 89% 100%
Microsoft Flight Simulator 320% 345%
Call of Duty: Modern Warfare 206% 224%
Doom Eternal 163% 179%
FIFA 20 63% 73%
Grand Theft Auto VI 367% 395%
Need For Speed Heat 206% 224%
Halo: Reach 3% 3%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8770 (OEM) are very slightly better than the AMD Radeon R7 260.

The HD 8770 and the Radeon R7 260 have the same core clock speed of 1000 MHz, but the HD 8770 has 8 more Texture Mapping Units than the Radeon R7 260. As a result, the HD 8770 exhibits a 8 GTexel/s better Texture Fill Rate than the Radeon R7 260. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 8770 and the Radeon R7 260 have both the same core clock speed and the same Pixel Fill Rate. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon R7 260 was released less than a year after the HD 8770, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The Radeon R7 260 has 1024 MB more video memory than the HD 8770, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the Radeon R7 260 also has superior memory performance overall.

The memory bandwidth of the Radeon HD 8770 (OEM) and the Radeon R7 260 are the same, which means the HD 8770 and the Radeon R7 260 have equal limitations when it comes to graphical data transfer.

The Radeon HD 8770 (OEM) has 896 Shader Processing Units and the Radeon R7 260 has 768. However, the actual shader performance of the Radeon R7 260 is 653. The HD 8770 having 243 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 8770 delivers a marginally smoother and more efficient experience when processing graphical data than the Radeon R7 260.

The Radeon HD 8770 (OEM) requires 85 Watts to run and the Radeon R7 260 requires 95 Watts. We would recommend a PSU with at least 450 Watts for the HD 8770 and a PSU with at least 450 Watts for the Radeon R7 260. The Radeon R7 260 requires 10 Watts more than the HD 8770 to run. The difference is not significant enough for the Radeon R7 260 to have a noticeably larger impact on your yearly electricity bills than the HD 8770.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1000 MHzvs1000 MHz
Boost Clock-vs-
ArchitectureGCN 1.0 Bonaire XTGCN 1.1 Bonaire PRO
OC Potential Fair vs Fair
Driver Support - vs Great
Release Date02 Sep 2013vs17 Dec 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
9.7
1600x900
7.7
green tick vs
7.5
1920x1080
5.9
green tick vs
5.7
2560x1440
4.2
green tick vs
4
3840x2160
2.5
green tick vs
2.4

GPU Memory

Memory1024 MBvs2048 MB
Memory Speed1500 MHzvs1500 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth96GB/secvs96GB/sec
L2 Cache 512 KB green tick 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 Units896vs768
Actual Shader Performance43%vs31%
Technology28nmvs28nm
Texture Mapping Units56vs48
Texture Rate56 GTexel/svs48 GTexel/s
Render Output Units16vs16
Pixel Rate16 GPixel/svs16 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections2vs1
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power85 Wattsvs95 Watts
Recommended PSU450 Watts & 30 Ampsvs450 Watts & 30 Amps

GPU Features

DirectX11.1vs12.0
Shader Model5.0vs5.0
Open GL4.2vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3250 3.5GHzvsIntel Core i5-3450 3.1GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 8770 (OEM) is an OEM Only, Fast-Middle-Class Graphics Card based on the First Revision of the Graphics Core Next (GCN) Architecture.

Architecture
The GCN Architecture succeeds the 40nm Terascale Architecture. In addition to being produced with a 28nm Technology, the GCN Architecture adds other Technologies that allow for energy efficiency. For example, ZeroCore Power, a long idle power saving technology, allows the Graphics Cards to shut down by itself when the Monitor is turned off.
GCN also adds Improved Anisotropic Filtering, DirectX 11 Tessellation and the Partially Resident Textures (PRT) Technology, which enables future games to utilize ultra-high resolution textures with the same performance as today's small and often repetitive textures.

GPU
It equips a GPU Codenamed Bonaire XT which has 14 Compute Units activated and thus offers 896 Shader Processing Units, 56 TMUs and 16 ROPs. The Central Unit is clocked at 1000MHz.

Memory
The GPU accesses a 1GB frame buffer of fast GDDR5, through a 256-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1500MHz.

Power Consumption
With a rated board TDP of 85W, it requires at least a 450W PSU with one available 6-pin connectors.

Performance
Radeon HD 8770 (OEM) is a Direct Rebrand of Radeon HD 7790 and performs exactly like it.

System Suggestions
Radeon HD 8770 (OEM) is best suited for resolutions up to and including 1600x900. We recommend a Decent Processor (Intel Core i3 Quad Core/AMD FX Quad Core) and 8GB of RAM for Optimal Performance.
Radeon R7 260 is a fast-middle-class graphics card based on the Second Revision of the GCN architecture. It packs a Core codenamed Bonaire PRO.
The Bonaire PRO is a cut-down version of the Bonaire XT Core used on Radeon HD 7790. It comes with 14 Compute Units and thus offers 768 Shader Processing Units, 48 TMUs and 16 ROPs. This, on a 128-bit memory interface of fast GDDR5. Compared to the Bonaire XT Core, it has support for DirectX 11.2 and has support for AMD's TrueAudio Technology.
Benchmarks indicate its performance is around 10% slower than Radeon HD 7790 and a little over that when taking Radeon R7 260X as a reference.
The card proves to be very inefficient seeing as it has a higher rated TDP board than Radeon HD 7790 and its release price of $109 makes Radeon HD 7850 a better option.
Recommended CPU
Possible GPU Upgrades
-
GPU Variants
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