Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7770 Sapphire Flex GHz Edition GeForce GTX 670 PNY 2GB Edition
Red Dead Redemption 2 296% 65%
Doom Eternal 241% 42%
Cyberpunk 2077 444% 126%
Call of Duty: Modern Warfare 296% 65%
Dragon Ball Z Kakarot 144% 2%
Microsoft Flight Simulator 444% 126%
Star Wars: Jedi - Fallen Order 444% 126%
Grand Theft Auto VI 506% 152%
Need For Speed Heat 296% 65%
Warcraft 3: Reforged 85% 94%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 670 PNY 2GB Edition are massively better than the AMD Radeon HD 7770 Sapphire Flex GHz Edition.

The HD 7770 has a 85 MHz higher core clock speed than the GTX 670, but the GTX 670 has 72 more Texture Mapping Units than the HD 7770. As a result, the GTX 670 exhibits a 62.5 GTexel/s better Texture Fill Rate than the HD 7770. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 7770 has a 85 MHz higher core clock speed than the GTX 670, but the GTX 670 has 16 more Render Output Units than the HD 7770. As a result, the GTX 670 exhibits a 13.3 GPixel/s better Pixel Fill Rate than the HD 7770. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The HD 7770 was released less than a year after the GTX 670, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GTX 670 has 1024 MB more video memory than the HD 7770, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 670 also has superior memory performance overall.

The GTX 670 has 120.3 GB/sec greater memory bandwidth than the HD 7770, which means that the memory performance of the GTX 670 is massively better than the HD 7770.

The Radeon HD 7770 Sapphire Flex GHz Edition has 640 Shader Processing Units and the GeForce GTX 670 PNY 2GB Edition has 1344. However, the actual shader performance of the HD 7770 is 544 and the actual shader performance of the GTX 670 is 1317. The GTX 670 having 773 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 670 delivers a massively smoother and more efficient experience when processing graphical data than the HD 7770.

The GeForce GTX 670 PNY 2GB Edition requires 170 Watts to run but there is no entry for the HD 7770. We would recommend a PSU with at least 450 Watts for the HD 7770 and a PSU with at least 500 Watts for the GTX 670. The GTX 670 has been recommended a PSU with 50 Watts more than the HD 7770. The difference is significant enough that the GTX 670 may have a slight adverse affect on your yearly electricity bills in comparison to the HD 7770.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1000 MHzvs915 MHz
Boost Clock-vs980 MHz
ArchitectureGCN 1.0 Cape Verde XTKepler GK104-325-A2
OC Potential Fair vs Good
Driver Support Good vs Good
Release Date01 Aug 2012vs01 May 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
6.8
vs green tick
10
1920x1080
5.2
vs green tick
8.1
2560x1440
3.5
vs green tick
5.9
3840x2160
2.3
vs green tick
4.3

GPU Memory

Memory1024 MBvs2048 MB
Memory Speed1125 MHzvs1502 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth72GB/secvs192.3GB/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 Units640vs1344
Actual Shader Performance26%vs63%
Technology28nmvs28nm
Texture Mapping Units40vs112
Texture Rate40 GTexel/svs102.5 GTexel/s
Render Output Units16vs32
Pixel Rate16 GPixel/svs29.3 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power-170 Watts
Recommended PSU450 Wattsvs500 Watts & 30 Amps

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3240 3.4GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 7770 Sapphire Flex GHz Edition is a special edition of the fast-middle-class Radeon HD 7770.
This edition has the FleX feature which enables users to connect low-cost DVI monitors for the first three screens in landscape or portrait mode. There is no overclocking out of the box and so its performance is on level with the reference card.
GeForce GTX 670 PNY 2GB Edition is a renamed GeForce GTX 670 with no new features - not even a new cooling system. Its performance is exactly like the reference card.
Recommended CPU
Possible GPU Upgrades
GPU Variants
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