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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R7 7860K GeForce GT 640 v3 Zotac 2GB Edition
Red Dead Redemption 2 515% 529%
Cyberpunk 2077 745% 765%
Doom Eternal 429% 441%
Call of Duty: Modern Warfare 515% 529%
Dragon Ball Z Kakarot 279% 288%
Halo: Reach 95% 100%
Microsoft Flight Simulator 745% 765%
Star Wars: Jedi - Fallen Order 745% 765%
Grand Theft Auto VI 840% 862%
Need For Speed Heat 515% 529%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R7 7860K are marginally better than the Nvidia GeForce GT 640 v3 Zotac 2GB Edition.

The GT 640 has a 289 MHz higher core clock speed than the Radeon R7 7860K, but the Radeon R7 7860K has 16 more Texture Mapping Units than the GT 640. As a result, the Radeon R7 7860K exhibits a 7.5 GTexel/s better Texture Fill Rate than the GT 640. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GT 640 has a 289 MHz higher core clock speed than the Radeon R7 7860K and the same number of Render Output Units. This results in the GT 640 providing 2.3 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 7860K was released over a year more recently than the GT 640, and so the Radeon R7 7860K is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GT 640.

The GT 640 has 2048 MB video memory, but the Radeon R7 7860K does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Radeon R7 7860K has 512 Shader Processing Units and the GeForce GT 640 v3 Zotac 2GB Edition has 384. However, the actual shader performance of the Radeon R7 7860K is 252 and the actual shader performance of the GT 640 is 402. The GT 640 having 150 better shader performance and an altogether better performance when taking into account other relevant data means that the GT 640 delivers a marginally smoother and more efficient experience when processing graphical data than the Radeon R7 7860K.

The Radeon R7 7860K requires 65 Watts to run and the GeForce GT 640 v3 Zotac 2GB Edition requires 49 Watts. We would recommend a PSU with at least 300 Watts for the Radeon R7 7860K and a PSU with at least 350 Watts for the GT 640. The Radeon R7 7860K requires 16 Watts more than the GT 640 to run. The difference is not significant enough for the Radeon R7 7860K to have a noticeably larger impact on your yearly electricity bills than the GT 640.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed757 MHzvs1046 MHz
Boost Clock-vs-
ArchitectureKaveri SpectreKepler GK208-400-A1
OC Potential None vs Poor
Driver Support - vs Good
Release Date02 Feb 2016vs29 May 2013
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - vs green tick
1920x1080 - vs green tick
2560x1440 - vs green tick
3840x2160 - vs green tick

GPU Memory

MemoryN/Avs2048 MB
Memory Speed1067 MHzvs1252 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth34.1GB/secvs40.1GB/sec
L2 Cache 0 KB vs green tick 128 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units512vs384
Actual Shader Performance12%vs19%
Texture Mapping Units32vs16
Texture Rate24.2 GTexel/svs16.7 GTexel/s
Render Output Units8vs8
Pixel Rate6.1 GPixel/svs8.4 GPixel/s

GPU Outputs

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

GPU Power Requirements

Max Power65 Wattsvs49 Watts
Recommended PSU300 Watts & 22 Ampsvs350 Watts & 26 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.3vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorAMD APU A10-7860K Quad-CorevsIntel Core i3-3220 3.3GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R7 7860K is an integrated Graphics Card in the APU A10-7860K.

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.
GeForce GT 640 v3 Zotac 2GB Edition is a special edition of NVIDIA's Middle-Class GeForce GT 640 v3, created by Zotac.

Overclock: Central Unit
The Central Unit runs at the same speed.

Overclock: Memory Clock
The Operating Memory Clock and the Frame Buffer remain the same.

Cooling Solution
The Cooling System has been replaced by Zotac's Silent Cooling Solution.

Without Overclocking Out of The Box, GeForce GT 640 v3 Zotac 2GB Edition is as fast as the reference GeForce GT 640 v3.
Recommended CPU
Possible GPU Upgrades
GPU Variants