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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 6770 Sapphire 1GB Edition GeForce GTX 260

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 260 are marginally better than the AMD Radeon HD 6770 Sapphire 1GB Edition.

The HD 6770 has a 274 MHz higher core clock speed than the GeForce GTX 260, but the GeForce GTX 260 has 24 more Texture Mapping Units than the HD 6770. As a result, the GeForce GTX 260 exhibits a 2.9 GTexel/s better Texture Fill Rate than the HD 6770. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 6770 has a 274 MHz higher core clock speed than the GeForce GTX 260, but the GeForce GTX 260 has 12 more Render Output Units than the HD 6770. As a result, the GeForce GTX 260 exhibits a 2.5 GPixel/s better Pixel Fill Rate than the HD 6770. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The HD 6770 was released over a year more recently than the GeForce GTX 260, and so the HD 6770 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce GTX 260.

The HD 6770 has 128 MB more video memory than the GeForce GTX 260, so is likely to be slightly better at displaying game textures at higher resolutions. This is supported by the fact that the HD 6770 also has superior memory performance overall.

The GeForce GTX 260 has 35.1 GB/sec greater memory bandwidth than the HD 6770, which means that the memory performance of the GeForce GTX 260 is noticeably better than the HD 6770.

The Radeon HD 6770 Sapphire 1GB Edition has 800 Shader Processing Units and the GeForce GTX 260 has 192. However, the actual shader performance of the HD 6770 is 340 and the actual shader performance of the GeForce GTX 260 is 254. The HD 6770 having 86 better shader performance is not particularly notable, as altogether the GeForce GTX 260 performs better when taking into account other relevant data.

The HD 6770 transistor size technology is 25 nm (nanometers) smaller than the GeForce GTX 260. This means that the HD 6770 is expected to run slightly cooler and achieve higher clock frequencies than the GeForce GTX 260. While they exhibit similar graphical performance, the HD 6770 should consume less power than the GeForce GTX 260.

The Radeon HD 6770 Sapphire 1GB Edition requires 108 Watts to run and the GeForce GTX 260 requires 182 Watts. We would recommend a PSU with at least 500 Watts for the HD 6770 and a PSU with at least 500 Watts for the GeForce GTX 260. The GeForce GTX 260 requires 74 Watts more than the HD 6770 to run. The difference is significant enough that the GeForce GTX 260 may have an adverse affect on your yearly electricity bills in comparison to the HD 6770.

Can I Run It

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GPU Architecture

Core Speed850 MHzvs576 MHz
Boost Clock-vs-
ArchitectureTerascale 2 Juniper XTTesla G200-100-A2
OC Potential Fair vs Poor
Driver Support Poor vs Poor
Release Date18 Apr 2011vs16 Jun 2008
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
6
vs green tick
6.4
1920x1080
4.9
green tick vs green tick
4.9
2560x1440
3
green tick vs
2.8
3840x2160 - green tick vs green tick -

GPU Memory

Memory1024 MBvs896 MB
Memory Speed1200 MHzvs999 MHz
Memory Bus128 Bitvs448 Bit
Memory TypeGDDR5vsGDDR3
Memory Bandwidth76.8GB/secvs111.9GB/sec
L2 Cache 256 KB green tick vs 0 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units800vs192
Actual Shader Performance16%vs12%
Technology40nmvs65nm
Texture Mapping Units40vs64
Texture Rate34 GTexel/svs36.9 GTexel/s
Render Output Units16vs28
Pixel Rate13.6 GPixel/svs16.1 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs0
DVI Connections2vs1
HDMI Connections1vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power108 Wattsvs182 Watts
Recommended PSU500 Watts & 33 Ampsvs500 Watts & 37 Amps

GPU Features

DirectX11.0vs10.0
Shader Model5.0vs4.0
Open GL4.3vs3.3
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-2100 3.1GHzvsIntel Core 2 Quad Q8200 2.33GHz
Recommended RAM6 GBvs6 GB
Maximum Recommended Gaming Resolution1600x900vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 6770 Sapphire 1GB Edition is a special edition of AMD's fast-middle-class Radeon HD 6770. It is a reference card as it features a new Cooling Solution but no overclocking out of the box. Read below to know more.

Overclock Out of The Box
The Central Unit remains clocked at 850MHz and the Memory Clock still operates at 1200MHz.

Cooling Solution
The reference AMD Single-Fan Cooling System has been replaced by Sapphire's Large Single Fan Cooling Solution. This means the card runs cooler under load.

Power Consumption
The Rated Board TDP should remain the same: 108W. We recommend a 500W PSU with one available 6-pin connector.

Release Price
Not available.

Performance
Radeon HD 6770 Sapphire 1GB Edition offers exactly the same performance the reference card does.
Overview
GeForce GTX 260 is a Performance Graphics Card based on the Second Revision of the Tesla Architecture.

Architecture
Tesla was NVIDIA's First Unified Shader Architecture.

GPU
It equips a GPU Codenamed G200-100-A2 which has 8 Stream Multiprocessors activated and thus offers 192 Shader Processing Units, 64 TMUs and 28 ROPs. The Central Unit is clocked at 576MHz.

Memory
The GPU accesses a 896MB frame buffer of GDDR3, through a 448-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 999MHz.

Features
DirectX 10.0 Support (10.0 Hardware Default) and support for SLI, NVIDIA PureVideo HD Technology, Dual-stream Hardware Acceleration, PhysX, CUDA, HybridPower and other technologies.

Cooling Solution
The Cooling Solution consists of a Single-Fan.

Power Consumption
With a rated board TDP of 182W, it requires at least a 500W PSU and it requires at least two 6-pin available connectors.

Performance
Gaming benchmarks put its performance around of a Radeon HD 4870, meaning it is much faster than GeForce GTS 250.
Recommended CPUAMD APU A4-5300B Dual-Core
AMD APU A4-5300 Dual-Core
AMD Athlon X2 7450
Intel Core 2 Duo E6550 2.33GHz
AMD Opteron 1354
Intel Xeon Processor E5520
AMD APU A6-3620 Quad Core
AMD Athlon II X4 610e
AMD Phenom 9950 Quad-Core Black Edition
Intel Pentium G4400T 2.9GHz
Possible GPU UpgradesRadeon HD 7870 DirectCU II TOP v2 Edition
Radeon HD 7870 HIS IceQ Turbo Edition
Radeon HD 7870 MSI Hawk Edition
Radeon HD 7870 Gigabyte OC Edition
GeForce GTX 580 Asus DirectCU II Edition
GeForce GTX 660 DA OC 2GB Edition
GeForce GTX 660 Galaxy GC Edition
GeForce GTX 570 MSI OC Power Edition
GeForce GTX 570 Gigabyte Edition
Radeon HD 6970 Lightning Edition
GPU Variants--

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